Guest guest Posted March 23, 2004 Report Share Posted March 23, 2004 Hey Sharon, > I am wondering if you could once again explain what Hydrosol is. I just did > not have much idea that it would be anything therapeutic, but thought it was > more perfume. sharon Below is a repeat of a post I made to this list in December 2003. Hydrosols are a by-product of the distillation process. When we distill an aromatic .. we get four products .. the essential oils, hydrosol, waste aromatic material .. and waste water. Don't confuse the water used to distill with the hydrosol .. little of the water will make it through the distillation conversion .. but the hydrosol (which is simply an EO bearing water) will. The hydrosol is that water that is condensed into the Florentine Flask and upon which the essential oil, which is lighter than water, is floating. Hydrosols contain water soluble aromatic chemicals not found in the EO as well as the oil soluble chemicals found in the EO. Check it out for yourself in the photos on pages 1 and 2 of the following: http://www.av-at.com/distillation/rosadamascena1.html Hydrosols are far less concentrated than EOs .. and are safer and gentler to use than the EOs .. but they do contain microscopic amounts of the EO. That amount will depend upon two things .. the price of the EO and how hydrophilic the hydrosol is. Meaning .. some EO will remain in the water at a greater percentage .. and if the EO is not costly, it is not economically feasible to remove it all. But for some, like Rose Otto in particular and also Melissa .. both very hydrophilic, a process called cohobation removes the lion's share of EO from the oil-bearing waters via a second form of distillation .. of the waters only. Some folks prefer the term Hydrolat .. and some prefer Hydrosol .. I can handle either .. but I can handle ONLY those two terms. Many rumors exist about Hydrosols .. some are based on normal misinformation common in this industry .. others are based on incorrect information in some publications. Contrary to popular belief, Hydrosols are NOT clear as a crystal .. they will look cloudy if not filtered often and the filtering begins at the still .. but we do it again after a barrel has set in place for a while. The reason is because in addition to traces of EO in that water, there will also be fine pieces of plant material - so it has to be filtered fine'er than fine. On terms .. I don't have a BIG problem with the term " Distillate " but I think it leaves much to be desired as it can be confused with other things. I do have problems with " Aromatic Waters " but it is probably more descriptive of what folks normally get - but not what they really want. To me, that's like recombined or condensed fruit juice. Folks take some distilled water, drop in some EO or Absolute and then shake their booty till its ready to sell. But it has to be shaken often and it does NOT have the water soluble chemical components of a Hydrosol. The term I hate and one that is prohibited in my company - is FLORAL WATERS .. folks who don't have stills can make floral waters - but they can't make hydrosols or hydrolats without a still. This process is not too different than soaking horse manure in distilled water. I'll tell you something you should watch out for with some Hydrosols - microbacteria and mold!!! From a safety standpoint there is even far more reason to test Hydrosols than there is EO .. Hydrosols are often taken internally by many folks - rubbed on the skin and in the eyes by many other folks .. so in my opinion, its important to test them on a regular basis .. and we do that every 90 days .. at Superior Labs, Inc., 2514 Billingsly Road, Columbus, Ohio 43235. If you know of any other person in the USA who does this .. please pass their name to me. ;-p Hydrosols are mostly water and water is an ideal breeding ground for microbes, fungus and mold. Ideally, you can extend the shelf life (somewhat) by refrigerating hydrosols and that's because refrigeration slows the growth of bacteria - that's why we use refrigerators for foods. Refrigeration reduces the likelihood of these things happening - doesn't prevent it - reduces it. Doesn't prevent your mayonnaise from going bad either but reduces the likelihood and extends the shelf life. Ensuring that containers used for Hydrosols are sterile is important. The drinking water we get from the tap is NOT sterile .. and reports of analysis of my Hydrosols indicates that they are more sterile than many of the bottled drinking waters found on grocery shelves. How can this be? As I said, when they exit the still they are sterile. For my Turkish hydrosols - I have new barrels constructed and deliver them to the still .. they have my codes stamped in them so I can control such things - not easy with other distillers but I have put the word out that I will stop buying from anyone who takes shortcuts. I'm telling you all this because folks in this industry do not tell of their failures - they only talk of their successes - so watch out. SO - ideally ALL Hydrosols should be refrigerated. But keeping them locked tight, out of sight, out of the light and not contaminating them ourselves by touching the lip of the bottle or the cap or pouring unused hydrosol back into the container, etc., also helps greatly in avoiding contamination. It is almost always the end user who contaminates hydrosols - same with cosmetics. BUT keep in mind that when one buys 3,000 kilograms (three metric tons) as I do, finding a refrigerator that large is a difficult task .. so, I keep my 50 kilo barrels in a temperature controlled warehouse in Maryland .. never less than 57 degrees or so there. Most EOs will not have bacterial contamination. And this also holds for some Hydrosols .. Oregano hydrosol will not have bacterial contamination as the carvacrol in the oil doesn't let them survive. All Hydrosols are sterile upon leaving the still .. but some can be contaminated by the end user if they are handled incorrectly after the distillation process. There are many therapeutic uses for hydrosols - especially Rose ... its used for cooking, as a spritz for and directly in the eyes to cure conjunctivitis .. Yarrow Hydrosol is effective as an anti-inflammatory for problem skin .. Oregano Hydrosol is antimicrobial and calms the stomach .. adds digestion. All of the Hydrosols have therapeutic value. That's it I reckon. Y'all keep smiling. :-) Butch http://www.AV-AT.com Quote Link to comment Share on other sites More sharing options...
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