Guest guest Posted March 23, 2007 Report Share Posted March 23, 2007 The Essential Facts About Essential Oils Message #29581 of 46690 Sat Feb 5, 2005 4:20 am Hey Chris .. other good folks, > From a natural foods trade magazine .... this is the stuff the " big > name " folks the retail industry are putting out there as selling points > and training info to the buyers in the stores to pass along to their > customers. > > Comments anyone? Gotta few .. but I'll keep them short .. relatively speaking. ;-) I'm gonna write much less this year than I have in the past but I'm not gonna shorten the length of the posts I do write. Folks on another list have been asking each other where they should buy oils .. but before they can determine that they should think about how they will know if an oil is a quality product or not. They will not learn from the article Chris posted. She sent it as an example of what is WRONG in the world of EO promotion but some folks took it seriously and a few on the other list started having orgasms and said they were so happy to get that great post and they were gonna send it to everyone they knew .. including their clients. So .. in order to try to dump some water on that enthusiasm I made the following post. Glad I am that you folks are astute and didn't swallow that crap. ;-) Using the nose is not the best way to determine quality or purity unless one has a lot of experience sniffing oils straight from the still. All oils are not supposed to smell nice. If one takes the time to stretch or adulterate an oil with an inexpensive chemical they aren't going to include one that smells bad if an oil should smell nice. Adulteration is done to stretch profit and improve odor of an oil .. sometimes odor is improved to a point that it no longer resembles the pure version. Even expert noses that work for perfumeries and such sniff in teams and over a period of time .. and then they compare notes and there is going to be some disagreement .. from those expert " calibrated " noses. We are not going to be able to determine quality or purity based on price. High prices do NOT indicate an oil is a good oil .. I showed Chris a site the other day (can't find it now) that had 1/2 oz Lemon (Citrus limonum) for like $40 .. that's $2,000 a kilo .. The finest Lemon should cost no more than $45 a kilo. All of their oils were in a price range that only folks like Donald Trump could afford. There are many valid reasons why one dealer may be forced to charge more than another dealer for an oil but there shouldn't be a wide variance as there are steady international market prices for oils. EXTREMELY LOW PRICES can and almost always do indicate LOW quality .. or a Commercial Grade oil .. reason is same as above .. the international market prices. No distiller sells for less because he likes us. The 2004 crop of Turkish Rose Otto sold out before harvest and distillation and I have seen one seller offering it for less than the cost of the 2003 production. One groupie said this person was selling Rose Otto bought for less during the 2002 season .. when it was $4,000 a kilo .. now its $6,600 a kilo .. if you can get a kilo .. which you can't. Nobody swallows that. First .. QUALITY Damask Rose (Rosa damascena) Rose Otto comes from TURKEY and BULGARIA and both countries raised the prices from the 2002 crop harvest/distillation to the 2003 season. If you had a product that cost you $10 would you sell it for $12 knowing there was a shortage and to replace it you are going to pay $15? And remember .. the 2002 crop of Rose Otto is smoother and more valuable than the later crop. Same goes for every year. I saw another co-op offered on a list .. the person claimed that they had a stash of an oil that had increased in price but they were gonna sell what they had at the old price to all the lucky buyers. Anyway .. a good supplier is not difficult to find IF we know what we are looking for. Not a lot different than a good spouse. ;-) Most small retailers are honest folks .. but not all are knowledgeable folks. Just as most married folks have no training to be a good spouse except what they got by watching their parents .. who might have gotten theirs the same way and it might have been bad training .. many honest suppliers don't know their butt from a Rose Blossom or a good oil from an adulterated oil because they got their knowledge from unreliable sources. Its more lack of knowledge than lack of honesty when trying to make a marriage work or buying and selling EO at the Retail level. Sellers who don't know their products depend on their sources .. the dealers not the distillers .. to tell them what to say .. just as the journalist who wrote this article depended on the marketing handouts the companies provided to him. The journalist did NOT do research .. he read those documents and reworded the info. On another list the other day .. someone said their journalist friend had to write an article on Lemon Tea Tree (Leptospermum petersonii) and they asked if anyone had info as the journalist know little about what s/he had to write about. Its not unusual to depend on others for information .. but reporting marketing as factual info does nothing but help the marketers and the journalist .. one sells more oils and the other gets the assignment behind them and moves on to other things in their chosen profession. Some dealers use the approach that they have a unique product. Young Living .. and even these folks here .. give good examples of this. Rare do we find a unique production method that will produce a product superior in chemical profile to other oils from the same region that are produced via normal distillation methods using single source aromatics. We can find more efficient distillation equipment but the main advantage is to lower the cost of production for the distiller. Of course, Gary Young claims to have special stills and he may be right because I have been told he's been fined twice for safety violations; the last time being when a still exploded and killed one of his Mexican workers. One unique seller claims to personally harvest wild aromatic plants with Tender Loving Care .. makes me think of young virgins dancing around in flowing white veils thanking the plants for their great sacrifice whilst singing Hari Krishna and such. Problems with this claim are: 1. The amount of aromatic materials needed to produce a kilo of oil. Often tons (Vitex comes to mind) .. and with other aromatics, we get 15-17 kilos from a metric ton (2,205 pounds). How long would it take two .. even five .. people to harvest enough aromatic materials to be able to distill and sell EO and make a profit? 2. Wild grown plants are mostly found in Third World or Emerging Market countries and the governments generally restrict harvest to the local peasants, who control their area of responsibility with weapons. Unless a distiller burns plants during distillation .. not easy to do nor likely to happen even with old equipment and even less likely with modern equipment .. we will get a quality product ALMOST every time. There are seasonal and harvest time variables that can affect quality but that is across the board. Its almost always following distillation that weird things can .. and do happen to essential oils. Come to think on it .. maybe knowledgeable suppliers are more difficult to find than good spouses. ;-) See below ......... > *Smile* > Chris > > Last 2 Days - Vanilla Co-ops > Green Tea Seed Oil Pre-Buy > http://www.alittleolfactory.com > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > The Essential Facts About Essential Oils > Bryce Edmonds > 9/1/2003 Lots of snipping .. I'm just addressing some of the comments. This article has taken Mom, Apple Pie and Chevrolet common knowledge, tied it in with ideal but often unreal conditions, then put a flowery spin on it so it appears to be profound revelations. Spin and hype and pretty flowers can sell the unwary but they do little to reach the hearts and minds of those who know the realities of the business. The medical community says Aromatherapy is HYPE and we've not been able to prove them wrong .. scientifically. If they are right then we are faddish dummies .. if they are wrong they are the dummies. I KNOW they are wrong .. but can't prove it because there is a lack of good science in AT and we do use a lot of hype and rumor and spin to try to make AT appear more credible and market more oils. I know they are wrong because I haven't taken an OTC or prescription medication .. or visited a medical doctor for other than routine check ups .. since 1996. I get a bug now and then and I kick his Big Bad Bug Butt in 18-36 hours or less sometimes. Having said that, it is likely that I'll go under snakes sometime tonight (knock on my wooden head) but when my friends pass by my coffin they will probably say that I was the healthiest looking corpse they ever done seen. ;-) > According to the National Association of Holistic Aromatherapy in > Seattle, an essential oil is a highly concentrated extract distilled > from aromatic plant material. There are two main processes used to > create essential oils. Most are made from steam distillation. Other > oils-primarily citrus-are made by expression, also known as cold > pressing. Using NAHA as a reference is bad enough .. http://www.nahaexposed.org/ but if they want their dealers to understand the oils and edumocate the public then they gotta tell it like it really is. The three forms of distillation used to extract oils from any and all botanical parts are Steam Distillation, Hydro-Steam and Hydro-diffusion. Cold Pressing and Expelled or Expeller Pressing is NOT the same process! So .. they are starting out with two strikes against them and this is Minor League Aromatherapy 101 information .. why should we think they will do better in the Major League with Aromatherapy 401? > Essential oils come in three different grades, but the classifications > are a bit murky. Kolinka Zinovieff, founder and owner of NHR Organic > Oils Ltd. in Brighton, England, uses the terms food, perfume or > aromatherapy, and clinical grades to designate them. Zinovieff .. isn't this the company I read about who claimed their oils were " Aromark Approved " when they were not a member? And didn't they once have Ecocert Approval on their label till for some reason Ecocert made them take it off? Maybe I have them confused with someone else .. somebody please help. > Robin Block, co-owner of Minneapolis-based Wyndmere Naturals Inc., uses > the terms commercial or food, therapeutic, and pharmaceutical for the > three levels. Wyndmere .. isn't this the company that sells Frankincense at Whole Foods for $4.25 a 1/2 oz .. less than cost of production? And this is after 3-4 outfits put a markup on it to make a profit. Wait a minute ... now its coming back to me .. it wasn't pure Frankincense .. it was mixed with Jojoba .. for some reason I still don't understand .. but it was not real clear on the label. We must be careful and read the fine print. Under European Union Big Brother regulations, one can claim, " Contains PURE, ORGANIC Essential Oils " if it contains 1% PURE, ORGANIC Essential Oils and not be charged with false advertising. The problem with such Big Brother legislation (which some Americans want) is that it creates narrow parameters which slick lawyers and con artists can easily bypass or sneak through. > Although the terminology varies, the definitions are quite similar. The above confuses folks. The terminology is different because the marketing schemes are different for each company .. like Dumb Living says their oils are the ONLY " Medicinal " oils on the planet and Jazzzus selected MR. Gary Young to heal the world with his fantastic oils. How can one sell " Medicinal " oils without FDA approval? How can one have a standard for something that doesn't exist? There are no EO I'm aware of that are or should be classified as " Medicinal " .. or for that matter, " Therapeutic. I have tried to get new folks avoid such terms because they are bogus claims. Even if they weren't bogus if we are not medical doctors .. most of us aren't .. then what the heck are we doing prescribing medicine? Imani Natural Products also advertises Medicinal Quality Essential Oils. Then we have other companies like Aura Cacia claiming to have Grade A and Grade B and such .. what is that? Others claim to deal only in Organic oils (which is another story about bogus claims) but they have many oils that are not cultivated .. oils from wild grown plants. IF the industry wants to legitimize they must at least agree on a common language .. a common set of terms that anybody anywhere can use and know what the other folks are talking about. Lack of common language in AT allows slicky boys to get away with a lot because folks read into their words what they want to hear .. without having any valid references! Calling an oil Therapeutic Grade Oil is saying that we can determine what makes it therapeutic and determine if its not therapeutic. I don't believe we can do either. Can adulterated or low quality pure EO have therapeutic properties? I think if this were not so we wouldn't have as many folks interested in Aromatherapy because some folks are buying EO that are less than the optimum and apparently gaining benefit from them. There are three basic therapeutic benefits to be gained from an EO: Physiological .. we don't even have to be able to smell to get benefit from this .. the volatile molecules will provide benefit in any case. Oregano EO is gonna kick Big Bad Bug Butts even if we are in a coma. Psychological .. some EO will affect our minds in either a positive or negative manner .. they will calm or excite us .. its not our choice whether this happens or doesn't happen. Emotional .. which in many cases overlaps with Psychological. Rose Otto has dramatic effects on some folks .. makes them laugh like crazy or cry like a baby depending on olfactory memory and conscious or subconscious connection of that odor with events in their life. One could produce an odor from Horse Manure that could have emotional therapeutic value to a person born and raised on a horse ranch in Texas but now living a fast, furious and unhappy life in the big city. There's no mystery to the types of therapeutic benefits gained from EO; the mystery comes in if we try to determine the why it happens. There should be two GRADES of oils .. Aromatherapy Grade and Commercial Grade. I'll not use the term Therapeutic Grade as I'm not a doctor. Aromatherapy Grade SHOULD BE pure, unadulterated, and NOT have been manipulated in ANY MANNER by man beyond the act of distillation, which is manipulation as it is not a natural occurrence. Commercial Grade has been manipulated .. sometimes surreptitiously and without the knowledge of a buyer and sometimes based on the specific orders or specifications of the buyer .. which in most cases will be cosmetics producers, perfumeries and foods manufacturers. Distillers do NOT produce different grades of oil .. except for Ylang Ylang and some purposely fractionalized oils. Ylang Ylang is the ONLY fractionalized oil that's always accepted by purists in the industry but they have little choice unless they believe in Ylang Ylang Complete. Citrus is NOT produced in grades .. Folded and Cold Pressed and Expeller Pressed and Distilled Citrus are NOT grades of oil .. the first one is a manipulated oil and the others are various methods of production! There should be TWO TYPES of EO .. PURE and ADULTERATED/MANIPULATED! Pure EO can be high in quality or mediocre in quality .. depends on the profile of the chemical constituents .. adulterated speaks for itself. Aromatherapy Grade should NEVER be adulterated and with the exception of some fractionated and terpeneless oils should not have been manipulated. We can find many PURE but MEDIOCRE Aromatherapy Grade oils if we analyze them because nature doesn't allow the same results each year. From time to time a chemical profile of a batch will not fit into that " footprint " that fallible man has determined to be the optimum for an oil. Commercial Grade will always be adulterated or manipulated and there is nothing wrong with that as long as its not sold as Aromatherapy Grade; but if there is no analysis of the oil .. one can never know this. Even with a GC or GC/MS an analyst only detects what they wish to detect and to the limit of their personal skill and in accordance with their archive of information on that oil. The skilled manipulators of EO are the chemists .. normally perfume chemists .. they can do a job on an oil that even they can't detect themselves. So you might ask .. why bother with an analysis? Because it does pick up on blatant or less than skilled adulteration .. and it can tell us that the oil is not what it is claimed to be. This is a deep subject and worthy of a post dedicated to that subject. > The lowest quality oils may include synthetics Mom, Apple Pie and Chevrolet. They speak of adulterated oils. > and are produced using a high-pressure, high-temperature, fast-distillation > process. Block says producers making this level of oil are not concerned > about getting all the natural chemical compounds from the plant. She says > this distillation process is much less expensive and the oils have a > stronger aroma and a narrower, or thin, bouquet. Disagree on the conditions of distillation. Why would any producer work to distill aromatic plants without regard to quality? It costs big bucks to establish even a small professional still operation. Don't even try to do it for $250,000 .. that's Chump Change. Distillation is an art .. here in Turkey the Master Distillers are afforded the same respect as a Master Chef in a New York Restaurant. Some of them have 40-50 years on the job .. one old feller I know in Isparta says he wants to die while distilling Rosa damascena. ;-) The mechanics of a still are more complicated they they appear to the casual observer .. and the devices to control pressure .. and heat .. are fairly sophisticated. There are collectors and counter pressure devices to ensure that the proper atmospheric pressure and temperature are maintained at all times .. and the gauges are constantly monitored by the Master Distiller. > The second level of oil is the industry standard, according to > Zinovieff, yet quality often varies. The industry standard for essential oils is NOT established by the Aromatherapy trade .. essential oils are not distilled for AT .. they are distilled for the Food, Perfumery, Cosmetics and Medical industries. AT uses somewhere between three percent and five percent (depending on the oil) of that production. > The therapeutic effects are not guaranteed and the oils may not always > be pure or unadulterated, he says. They are generally processed at lower > pressures and temperatures for longer periods. The paragraph above this one criticizes high pressure distillation and now its low pressure distillation .. and the professional distiller below says .. " We distill at a very low pressure. " In fact, the steam source sends steam forward at basically 1 atmosphere but by the time it enters the still it is very low pressure .. and the temperature at the bottom of a still will be a degree or three higher than the top. In fact, pressure will be the same from distillation to distillation unless the distiller is a careless person .. the distiller below says the norm for pressure is 1 psi .. I don't feel like converting that now but here its something like 30 grams per centimeter and as I said above its constantly monitored because no distiller wants to expose expensive equipment to unnecessary stress or lower the value of a batch of oil. As for therapeutic value .. far as I know nobody can tell us the exact therapeutic value of any essential oil based on observation or even analysis of isolated chemical components. Another deep one this is. As for time and temperature and pressure of distillation .. distillers are business folks .. they don't like to waste money .. energy and time and equipment is money. To fill an order for 500 kilos of Oregano EO (a normal order this is) a distiller must distill around 25 metric tons of Origanum leaf .. meaning .. the average one ton still must function 25 times for 3.5 - 4 hours each time .. some use 500 kilo still so you can double the time. I know of no reason why a distiller would stretch this time out .. but I can think of reasons why he would not do that. I just got off the phone with a Master Distiller and Still Design Engineer here in Turkey .. Namit Mumcuoglu .. we talked 30-40 minutes on the mechanics of distillation and Namit speaks off the top of his head because he has been in the business for around 40 years. He says that from 500 kilograms of Oregano with an expected oil percentage yield of 4% we will be able to extract around 3.8% in 4 or so hours .. but to get the other 2/10ths of 1% we must spend approximately 5 X the value of the oil that will be obtained. Not smart .. its like me in that there are times where the hourly wage of my employees exceeds the profit made on a piddly order they must pour, package and ship. But everyone is not as dumb as I am. ;-) In addition to the wasted effort, energy and labor costs to push a single distillation is the time available to distill and the factor of abuse of equipment .. if one has two each 1 ton stills and one goes down in the middle of the season they can go hungry that winter! Aromatics will render almost all they can yield in the reasonable time that is known by a Master Distiller .. temperature of steam entering a still MUST BE at least boiling .. there is just no such thing as low temperature distillation .. though a careless distiller could screw up and allow the temperature to become too hot .. by a degree or three. Pressure built up in a Steam or Hydrodiffusion still will be sufficient to allow the forcing of steam through a mass of aromatic materials but not more than is necessary as there are counter devices to control this plus it would be a waste of energy and profit. This is not so for a Hydro-Steam operation as aromatic materials are then in direct contact with the water .. like your washing machine. You can view Hydro-Steam distillation at the following URLs .. Rose Otto production in Turkey .. http://www.av-at.com/distillation/rosadamascena1.html http://www.aromamedical.com/articles/rosedistillation.htm http://www.av-at.com/stuff/rosedistillation.html I'm now 20 pounds lighter than I was in one of the above photos. ;-) And below are the Rose Fields of Isparta .. http://www.av-at.com/stuff/rosefields1.html > The highest quality of oil is processed using very low pressures and > temperatures and long distillation periods. This can be true for SOME oils .. not for all .. some are delicate and the longer you expose the plant material to heat the more damage you can create .. you can create a problem called Caramelizing. The highest quality oils are those few that can be manipulated .. like Juniper Berry (Juniperus communis) and some mints and other oils that are sometimes double or even triple distilled .. that is .. not just the spent plant material but the oils themselves. Don't confuse this with cohobation, which is the second distillation of some very hydrophilic hydrosols .. those that retain the lion's share of the oil following the first distillation. I have watched many distillations and talked with many Master Distillers and professors who are experts in this area .. and I am sure that the distiller who was quoted in this article is a professional because he couldn't stay in business if he were not .. but I think he embellished a a bit in his explanation of the routines as they are the exceptions, not the norms. One does not make profit with the exceptions. I've not met a distiller who has been in business long who qualifies for Sainthood. > Block says producers using this technique are interested in an oil's > chemical components for healing use. Distillers do not produce healing and non healing oils. ;-) And even though a longer distillation period .. and loss of profit .. can change (slightly) the chemical profile of an oil .. nobody can tell us that it is better or worse .. or how much better or worse. And again ... its not the norm .. its just not the way its done. > And Zinovieff and Block agree these oils are always produced organically > and are primarily used by professional aromatherapists. Oils are not produced Organically .. SOME cultivated plants are produced Organically in the field but not the EO. More than half the EO produced in the world are wild grown so they are not classically Organic and for alleged " Organic " and " Certified Organic " oils one can not know for sure because nobody certifies EO .. nobody certifies crops .. they certify the ground the crop is grown on. This too is a subject for a different post and I expect an Organic and Certified Organic discussion could burst a few balloons and disappoint a lot of people. > Quality Counts. Good Old Mom and Apple Pie. ;-) > When an essential oil is distilled, a number of chemical constituents > can be removed from the plant material and collected in the oil. Not can be .. will be .. you can't stop it from happening. > The slower and lower heat distillation process leaves the most chemicals > in the oil. You cannot distill any aromatic plant part at a temperature lower than 100 degrees Celsius or 212 degrees Fahrenheit .. the boiling points. And I know of no procedure for accidentally removing chemical components from an essential oil .. if its done its done purposely. > " Low-quality essential oils do not have the full range of natural > ingredients and therefore have little or no therapeutic value, " > Zinovieff says. Industry consultant Joni Keim Loughran, who is also > technical adviser to the Petaluma, Calif.-based Oshadhi USA, agrees. They cannot know this for sure .. there is no science on this except for I think a European Union standard for 2-3 essential oils for medicinal use .. in the European Pharmacopoeia. Since those standards can be met by manufactured EO they are basically useless whitewash. > " It won't work therapeutically if it's not a quality oil. " Back to therapeutics and again they claim things science has not yet tried to learn. Oshadhi and other big brand names sell the same oils ... plus or minus .. as other sellers .. and some folks buy oils that are probably pure but not high quality and get pretty good results. Those results will PROBABLY NOT be exactly the same as with a high quality oil but how do we create a system to determine fair to good to excellent results when using an EO without considering the many variables? We can easily determine what is a pure and quality oil from an analysis but we have no way of knowing FOR SURE the degree of therapeutic value in one pure oil versus another pure oil of the same type. If its true that only HIGH QUALITY EO work .. then many folks are not getting much bang for their buck and the medical folks might be right ... AT might be just hype! > Tom Havran, a consultant for Norway, Iowa-based Aura Cacia's product > development, says an oil's chemical makeup affects its efficacy. " For > aromatherapy to work, all the constituents must be there, " he says. Of course it must be complete .. this holds for any chemical concoction and for Mama's Baking Flour Biscuits and Apple Pies. What they mean is don't manipulate .. he is saying little but it sounds profound. Also, I wonder if he considered FCF Bergamot and Ylang Ylang when he made the statement? All the chemical constituents are not present in these oils but I bet they still sell them. I don't sell FCF Bergamot or any type of Ylang Ylang except Complete .. its my choice and my modus operandi. If we let physics do its thing a distillation process performed by a Master Distiller will ensure that the non water soluble chemicals in the aromatic plant or flower or whatever will be yielded and reflected in the chemical profile of the essential oil. There is no way to avoid this unless the still is defective and/or the distiller is incompetent. Considering that distillation is a very high cost business we can bet our bottom dollar that legitimate companies do have master distillers on the payroll .. as good restaurants have master chefs. My comments are not from some novel .. they are based on my experience and discussions with many Masters. > " Take tea tree, for example. The constituent cineol is irritating to > the skin, but not in concert with all the other constituents. " Again they say little but make it sound significant. Isolation and/or Duplication of chemicals is how many medications are made and this why there are many side effects from synthetic and/or isolated chemicals ... what is missing is the " natural synergy " that was there prior to the isolation. And true it is that some chemicals standing alone can be dangerous because the natural synergy has offsets, checks and balances. But .. this is AT 101. Plants and other living things have gone through a period of natural selection .. only the fittest survived .. the fittest were those that could protect themselves from natural enemies and procreate. When Mama Nature determined the chemical makeup of these critters it was not a matter of Her throwing in a bit of this and a bit of that .. whoops .. I am short a few percentages so I gotta throw something else in to fill the void to keep the plant from rattling around and making noise. ;-) Bottom line .. there is no way to determine exactly what is or is not a Therapeutic Grade oil and there should be no such classification .. in fact it smacks of selling medicines and that is dangerous in the USA, UK and Canada. We don't know EXACTLY why some EO are therapeutic. There are hundreds of major and minor trace chemicals in an oil and the proper way to test is to test the whole oil .. not test an isolated chemical component from the oil because then the natural synergy is missing and you and I do not use isolated chemicals in Aromatherapy. > However, as evidenced by the various grades, manufacturers have > different motivations and goals for their essential oil production. But the Grades are Aromatherapy Grade and Commercial Grade. If they are saying that a NATURAL oil is better than a MANIPULATED oil I will agree with them .. but again this is AT 101 and there is no need to decorate facts with flowers to make them appear to be important statements. > Someone doesn't necessarily need a high-quality oil with all its > chemical constituents to make home cleaning supplies. Thank the Great Spirit for that because most of it is synthetic. ;-) > To further confuse things, quality depends on more than just proper > distillation. How the plant was grown is a big factor. " It is a bit like > winemaking, " Zinovieff says. " You get good and bad years. " That is why the perfumeries demand the manipulated 40/42 Lavender. They don't want to change their formulas from year to year. But if what they say is true .. then on the bad years where there is a shortage of this or that QUALITY oil the majority of AT folks must be satisfied with a PURE .. LOW QUALITY oil .. and they say it is not going to work! So .. why do they sell them in the off years? > Differences in how and where the plant was grown, harvested and > distiller change the constituents in the final product. True .. however .. many folks can't know this info because many sellers of EO don't tell them .. or likely might not know themselves. You need to know the following .. as a minimum: Origin of an Oil: If you don't know this you can't judge quality or determine if the price asked is fair. Oils from certain origins are higher quality and more efficient than others .. one that comes to mind is Helichrysum italicum from Corsica .. its the finest. For value/pricing/cost .. Pepper, Black (Piper nigrum) from Madagascar is twice the price of lower quality oil from India .. Bay Rum (Pimenta racemosa) from Jamaica is twice the cost of the lower quality oil from the Dominican Republic .. Bergamot (Citrus bergamia) from Italy is twice the price of the lower quality oil from Ivory Coast and THREE times the price of the much lower quality oil from China .. Rose Otto from Turkey and Bulgaria (Rosa damascena) .. is three times the cost of the MUCH lower quality Rose Oils from Russia and China .. and the Russian and Chinese oils are not worth one tenth of the price of the Turkish and Bulgarian Rose Otto. I can go on and on with 50-60 other oils but I think you have the point and see why its important to know the origin .. and an analysis can tell you the origin of an oil. Date of Distillation: Not the date of bottling .. we need this info to determine the relative shelf life of the oil if its stored under optimum conditions. There is no such thing as Shelf Life or Best if Used by Dates .. no Carriages turning to Pumpkins at midnight .. but there is a relative shelf life .. sorta like us human critters have .. which can be reduced or extended based on handling and proper care or lack thereof. Plant Part Used in Distillation: The differences will be as great as night and day .. example is Rosemary, Cineole (Rosmarinus officinalis). There is oil in the leaves and the stems but if you distill the stems too the level of 1.8 Cineole will be higher and the quality of the oil will be lower. In some cases safety will be a factor in part used. Method of Distillation: We get different results with different forms of extraction .. and .. the cost of an oil can be determined by this. Botanical Name: If we don't know this we can easily get shafted by the con artists .. and there is no shortage of them out there. If a smart person could critique many of the web sites of those selling oils and had the power to make them come clean and tell it like it really is .. the web masters would be very busy critters. > But How Can You Tell? > > Gas-liquid chromatography is the most scientific way to test oils > for quality. There are many analysis tests that are so far ahead of GC and GC/MS that comparing them would be like comparing a motorcycle (GC/MS) to a Space Shuttle. Some tests can cost thousands or even tens of thousands of bucks but the GC or GC/MS runs $150 or so. > This technique measures an oil's constituent types and levels. ONLY .. if you know what you are looking for! It does not do this automatically and it is subject to error if the analyst is weak. > Zinovieff recommends retailers ask to see the manufacturer's gas-liquid > chromatography analysis for each oil. Block warns, however, that relying > too heavily on GLC is a mistake. I agree that you should ask .. and I've NEVER sold an oil without one and will give a copy to any buyer who asks .. free of charge .. but y'all don't be surprised if the dealers mentioned in this article tell you they don't have one or they have one but you can't see it or they pull out a generic GC that will be the same one you will see next year. Don't forget who they are .. ask them .. maybe I'm wrong. ;-) They are: NHR Organic Oils Ltd. Wyndmere Naturals Inc. Oshadhi USA Aura Cacia Also .. ask Young Living. ;-) I agree that depending on analysis alone is not enough .. same for some medical tests .. but its rarely a mistake to give some credibility to an analysis unless the dealer is crooked or the analyst was not efficient. Testing is ALWAYS superior to not testing. I know 2 American companies that spent big bucks for oils from a particular country last year, later had them tested again and learned they bought badly adulterated oil. > " GLC cannot pick up some types of adulterations, " she says. " For > instance, rose oil is quite often adulterated with a chemical that can > be taken from geranium. Most people can't tell, and the GLC can be > fooled. It's not the end-all and be-all. " This is old science .. Rose Otto adulteration is perhaps the EASIEST to determine via GC/MS .. its one of the most difficult oils to duplicate and one of the most difficult to adulterate and hide that adulteration from the average analyst. The most common chemical used to adulterate Rose Otto is Phenyl ethyl alcohol (PET) and there is a simple home test to see if the PET level is too high .. put it in a refrigerator for 5 minutes and if it does NOT crystallize its adulterated. It'll not harm the Rose Otto and it will return to normal consistency when removed and brought back to room temperature. But .. I agree that GC or GC/MS is not the end all or be all. ;-) > Buying organic is another way to know you're getting a quality product. > In fact, both Zinovieff and Loughran believe organic oil is the only way > to go. " Organic matters enormously, " Zinovieff says, " because the purer > the essential oil, the stronger the therapeutic effect. " IF we can grow the plants and distill the plants .. or IF we can watch the plants being harvested from KNOWN organic ground .. and then watch the distillation .. and then take the oil on the spot .. we can then be assured of having an oil produced from an organic source. That is about the only way we can be TOTALLY sure. I go along with Ralph Waldo Emerson, who wrote, in " Conduct of Life, " The louder he talked of his honor, the faster we counted our spoons. " Caveat Emptor! Enough .. this post is already too long. ;-) Y'all keep smiling. :-) Butch http://www.AV-AT.com Wholesale/Retail GC Tested EO, Rose Otto, Tested Hydrosols and other nice things shipped from our store in Friendsville, MD. Pop: 597 Quote Link to comment Share on other sites More sharing options...
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