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	<title>Comments on: Wonders of extraction: Ethanol</title>
	<atom:link href="http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/feed/" rel="self" type="application/rss+xml" />
	<link>http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/</link>
	<description>- dedicated to molecular gastronomy</description>
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		<title>By: Liqueurs: Limoncello, damson gin and beyond &#124; Kayahara</title>
		<link>http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/comment-page-1/#comment-190471</link>
		<dc:creator>Liqueurs: Limoncello, damson gin and beyond &#124; Kayahara</dc:creator>
		<pubDate>Tue, 02 Mar 2010 16:03:49 +0000</pubDate>
		<guid isPermaLink="false">http://blog.khymos.org/?p=435#comment-190471</guid>
		<description>[...] ethanol can dissolve both water- and oil-soluble flavour compounds. (You can read more about this here.) In practical terms, this means that if you add an aromatic foodstuff to vodka and leave it to sit [...]</description>
		<content:encoded><![CDATA[<p>[...] ethanol can dissolve both water- and oil-soluble flavour compounds. (You can read more about this here.) In practical terms, this means that if you add an aromatic foodstuff to vodka and leave it to sit [...]</p>
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		<title>By: Nocino - walnut liqueur (part I) &#187; blog.khymos.org</title>
		<link>http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/comment-page-1/#comment-140720</link>
		<dc:creator>Nocino - walnut liqueur (part I) &#187; blog.khymos.org</dc:creator>
		<pubDate>Wed, 13 May 2009 21:58:21 +0000</pubDate>
		<guid isPermaLink="false">http://blog.khymos.org/?p=435#comment-140720</guid>
		<description>[...] in water however decreases with higher molecular weight. As I mentioned in a previous post on ethanol extractions this is the reason why 30-60% ethanol is most commonly used for infusions and [...]</description>
		<content:encoded><![CDATA[<p>[...] in water however decreases with higher molecular weight. As I mentioned in a previous post on ethanol extractions this is the reason why 30-60% ethanol is most commonly used for infusions and [...]</p>
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		<title>By: blog.khymos.org &#187; Blog Archive &#187; Wonders of extraction: Oil</title>
		<link>http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/comment-page-1/#comment-111090</link>
		<dc:creator>blog.khymos.org &#187; Blog Archive &#187; Wonders of extraction: Oil</dc:creator>
		<pubDate>Sat, 08 Nov 2008 22:31:56 +0000</pubDate>
		<guid isPermaLink="false">http://blog.khymos.org/?p=435#comment-111090</guid>
		<description>[...] and a non-polar end falls in between oil and water. I&#8217;ve covered extractions using water and ethanol previously. That water and oil are opposites is easily observed by the fact that they don&#8217;t [...]</description>
		<content:encoded><![CDATA[<p>[...] and a non-polar end falls in between oil and water. I&#8217;ve covered extractions using water and ethanol previously. That water and oil are opposites is easily observed by the fact that they don&#8217;t [...]</p>
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		<title>By: Martin Lersch</title>
		<link>http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/comment-page-1/#comment-111038</link>
		<dc:creator>Martin Lersch</dc:creator>
		<pubDate>Fri, 31 Oct 2008 06:49:38 +0000</pubDate>
		<guid isPermaLink="false">http://blog.khymos.org/?p=435#comment-111038</guid>
		<description>The relative importance of the non-polar end is smaller when going from OH to COOH.

Yes - adding water to ethanol will dimish it&#039;s ability to dissolve oil.</description>
		<content:encoded><![CDATA[<p>The relative importance of the non-polar end is smaller when going from OH to COOH.</p>
<p>Yes &#8211; adding water to ethanol will dimish it&#8217;s ability to dissolve oil.</p>
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		<title>By: hank</title>
		<link>http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/comment-page-1/#comment-111035</link>
		<dc:creator>hank</dc:creator>
		<pubDate>Thu, 30 Oct 2008 22:09:59 +0000</pubDate>
		<guid isPermaLink="false">http://blog.khymos.org/?p=435#comment-111035</guid>
		<description>Martin my brain is exploding trying to understand how this works. I understand that ethanol has a polar and non polar &quot;end&quot; but how does the OH group converting to a carboxylic group affect its non polar end? I noticed also that adding water to ethanol affects  oil&#039;s ability to be soluble in it. Is there a connection between these  to things?

hank</description>
		<content:encoded><![CDATA[<p>Martin my brain is exploding trying to understand how this works. I understand that ethanol has a polar and non polar &#8220;end&#8221; but how does the OH group converting to a carboxylic group affect its non polar end? I noticed also that adding water to ethanol affects  oil&#8217;s ability to be soluble in it. Is there a connection between these  to things?</p>
<p>hank</p>
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		<title>By: Martin</title>
		<link>http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/comment-page-1/#comment-111033</link>
		<dc:creator>Martin</dc:creator>
		<pubDate>Thu, 30 Oct 2008 19:05:06 +0000</pubDate>
		<guid isPermaLink="false">http://blog.khymos.org/?p=435#comment-111033</guid>
		<description>hank: Good quesiton! It&#039;s true that ethanol can be oxidized to acetic acid (known as vinegar when diluted to 5-7%). In the process the polar OH group is converted into the much more polar COOH group (a carboxylic acid group). In other words, vinegar is more similar to water than to ethanol with regards to polarity. But there is an extra side to this - the fact that it&#039;s an acid will help break down cell walls and allow for a more complete extraction than when using water.</description>
		<content:encoded><![CDATA[<p>hank: Good quesiton! It&#8217;s true that ethanol can be oxidized to acetic acid (known as vinegar when diluted to 5-7%). In the process the polar OH group is converted into the much more polar COOH group (a carboxylic acid group). In other words, vinegar is more similar to water than to ethanol with regards to polarity. But there is an extra side to this &#8211; the fact that it&#8217;s an acid will help break down cell walls and allow for a more complete extraction than when using water.</p>
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		<title>By: hank</title>
		<link>http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/comment-page-1/#comment-111031</link>
		<dc:creator>hank</dc:creator>
		<pubDate>Thu, 30 Oct 2008 17:11:08 +0000</pubDate>
		<guid isPermaLink="false">http://blog.khymos.org/?p=435#comment-111031</guid>
		<description>Do you know if vinegar extracts like alcohol (being that it once was alcohol) or does it have its own set of rules?</description>
		<content:encoded><![CDATA[<p>Do you know if vinegar extracts like alcohol (being that it once was alcohol) or does it have its own set of rules?</p>
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		<title>By: erik</title>
		<link>http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/comment-page-1/#comment-110593</link>
		<dc:creator>erik</dc:creator>
		<pubDate>Sat, 09 Aug 2008 22:01:20 +0000</pubDate>
		<guid isPermaLink="false">http://blog.khymos.org/?p=435#comment-110593</guid>
		<description>I agree, Martin. Ethanol must be highly underutilised. Although liqueurs are quite common, my opinion is that non-sweetened drinks have a great potential. At least for those of us that prefer our spirits with less sugar and more flavour/aroma from the main ingredient, be it spices, berries, fruits or something else. 

In my opinion, berry/fruit liqueurs and aquavits(*) are maybe the alcoholic drinks with greatest potential for making at home. Home-produced beer and wine are commonl, but require lots of specialst skill, experience and knowledge to even come close to the quality of the commercial versions. Extracted spirits, however, are very easy to make and the quality would easily surpass what you buy. Why? I guess that ethanol and sugar are the cheap ingredients, at least for industry, whereas i.e. high quality wild or garden-grown berries are expensive. Hence, according to my taste, these are ofter too sweet and lack flavour and aroma from the berries/fruit.

At home, we produce, almost every year, a batch of lingonberry liqueur or aquavit. The berries are hand-picked in nearby mountaineous areas, and the flavour is packed with berries. Another great spirit is blackberry leaf aquavit:

800 ml blackberry leaves, preferably picked before or during blossoming
700 ml 40% ethanol
4 sugar cubes

Cut the leaves in 2-4 with scissors, leave in the ethanol (closed jar) for two weeks. The recipe says one week in light and one week in the dark (does this make sense?). Filter off the leaves, add sugar cubes and leave for 3-4 months.

Yes, I know - measuring leaves by volume doesn&#039;t seem very reproducible. However, depending on the weather, weight migh be just as inaccurate. 

A wonderful golden colour and aroma of blackberries (obviously) and hints of brown spirits.


* Here, I use &quot;aquavits&quot; as a general term for non-sweetened spirits based on extraction. &quot;Dram&quot; is an  alternative Norwegian/Danish word. A more proper English term might maybe be schnapps?</description>
		<content:encoded><![CDATA[<p>I agree, Martin. Ethanol must be highly underutilised. Although liqueurs are quite common, my opinion is that non-sweetened drinks have a great potential. At least for those of us that prefer our spirits with less sugar and more flavour/aroma from the main ingredient, be it spices, berries, fruits or something else. </p>
<p>In my opinion, berry/fruit liqueurs and aquavits(*) are maybe the alcoholic drinks with greatest potential for making at home. Home-produced beer and wine are commonl, but require lots of specialst skill, experience and knowledge to even come close to the quality of the commercial versions. Extracted spirits, however, are very easy to make and the quality would easily surpass what you buy. Why? I guess that ethanol and sugar are the cheap ingredients, at least for industry, whereas i.e. high quality wild or garden-grown berries are expensive. Hence, according to my taste, these are ofter too sweet and lack flavour and aroma from the berries/fruit.</p>
<p>At home, we produce, almost every year, a batch of lingonberry liqueur or aquavit. The berries are hand-picked in nearby mountaineous areas, and the flavour is packed with berries. Another great spirit is blackberry leaf aquavit:</p>
<p>800 ml blackberry leaves, preferably picked before or during blossoming<br />
700 ml 40% ethanol<br />
4 sugar cubes</p>
<p>Cut the leaves in 2-4 with scissors, leave in the ethanol (closed jar) for two weeks. The recipe says one week in light and one week in the dark (does this make sense?). Filter off the leaves, add sugar cubes and leave for 3-4 months.</p>
<p>Yes, I know &#8211; measuring leaves by volume doesn&#8217;t seem very reproducible. However, depending on the weather, weight migh be just as inaccurate. </p>
<p>A wonderful golden colour and aroma of blackberries (obviously) and hints of brown spirits.</p>
<p>* Here, I use &#8220;aquavits&#8221; as a general term for non-sweetened spirits based on extraction. &#8220;Dram&#8221; is an  alternative Norwegian/Danish word. A more proper English term might maybe be schnapps?</p>
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		<title>By: Guest</title>
		<link>http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/comment-page-1/#comment-97117</link>
		<dc:creator>Guest</dc:creator>
		<pubDate>Thu, 12 Jun 2008 07:13:33 +0000</pubDate>
		<guid isPermaLink="false">http://blog.khymos.org/?p=435#comment-97117</guid>
		<description>We made vanilla extract at work using rum instead of vodka with the leftover vanilla seed pods.  I think it adds a nice dimension...</description>
		<content:encoded><![CDATA[<p>We made vanilla extract at work using rum instead of vodka with the leftover vanilla seed pods.  I think it adds a nice dimension&#8230;</p>
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		<title>By: Robert Paulson</title>
		<link>http://blog.khymos.org/2008/06/08/wonders-of-extraction-ethanol/comment-page-1/#comment-97096</link>
		<dc:creator>Robert Paulson</dc:creator>
		<pubDate>Thu, 12 Jun 2008 01:21:38 +0000</pubDate>
		<guid isPermaLink="false">http://blog.khymos.org/?p=435#comment-97096</guid>
		<description>When making ethanol extracts of spices, I find that a &lt;a href=&#039;http://en.wikipedia.org/wiki/Soxhlet_extractor&#039; title=&#039;Soxhlet extraction&#039; rel=&quot;nofollow&quot;&gt;Soxhlet extraction&lt;/a&gt; works much more efficiently than soaking and filtration.  It usually extracts the more volatile aromatic compounds first and leaves the heavier bitter tastes in the remnants.</description>
		<content:encoded><![CDATA[<p>When making ethanol extracts of spices, I find that a <a href='http://en.wikipedia.org/wiki/Soxhlet_extractor' title='Soxhlet extraction' rel="nofollow">Soxhlet extraction</a> works much more efficiently than soaking and filtration.  It usually extracts the more volatile aromatic compounds first and leaves the heavier bitter tastes in the remnants.</p>
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