Du kanske har rätt i det
Spriten som kördes förra vändan var 1l som låg på runt 60-70% och blandades med runt 8l vatten, kan ha varit lite mindre också men hur som blev det nog inte många procent i den vändan.
Nu är inte jag så insatt i dom alla möjliga olika modellerna men pm är Power manegment? Alltså stryra strömen istället för kylningen?latmasken skrev: ↑lör dec 23, 2023 8:53 Du får väl prova att köra den som PM istället för CM om refluxkylaren (som väntat) inte klarar av att ge 100% reflux med full kokaraffekt.
Men sen tror jag som sagt var att för mycket ångor ändå smiter förbi kylrören, så det är nog osannolikt att du kan uppnå 100% reflux.
Det finns även info att hitta i tråden Lite destillationsteori och teknik - Destillationsteknik, reglering av kolonnbrännaren och att ta cutsFrån The Spiral Still
Operating procedures
The reason I really like this still is that it suits very well for a lazy persons like me. With power controller you can make it shut down between heads, main run and tails. You can start it in the evening, let it equilibrate over night, slowly collect the heads during next day (while you are at work for example) and start the main run next evening. With predetermined power levels it will close or slow down considerably when main run is finished. All you need to do is start it, adjust power few times and change collecting vessel few times. This all over a period of few days so you don’t need to hurry. As a bonus it keeps my garage warm during the run.
Starting the still
Starting is just as usual, assemble and fire her up at full power. It’s a good idea to measure the alcohol content in your mash and calculate the boiling point (I usually use one of the calculators at Tony’s site). This way you can use a thermometer with alarm to tell you when to adjust down the power (set the alarm 1-2 degrees lower than the boiling point). When boiling is reached adjust the power so that the upwards part of the spiral is warm while downwards is cool. This means you operate in full reflux. Let your rig to equilibrate for some time (I usually leave it overnight).
Heads
After this is finished crank up the power slightly to have roughly 10-20cm of the downwards pipe warm. Let it drip until it ceases or the ethyl acetate smell is gone. Toss the first .5 dl, the rest is heads you can redistill later. You should collect from 2dl-5dl depending on your mash and other variables. The output should be very slow now or even ceased. Crank up the power slightly and test if the product tastes and smells like pure ethanol. If the product is not yet pure crank the power up only slightly from previous setting and continue slow collection until satisfied with the quality. For flavoured spirits you might take some of the late heads phase into the final product, depends on your taste.
Ethanol run
When pure ethanol is coming out, adjust the power to have 30-60cm down spiral warm. This means 1 drop every second or two seconds at 95+% neutral spirits. At this stage you usually make ~1-2 liters in 24 hours. I usually collect the stuff twice a day to ensure I won’t accidentally go into tails in case I’m a bit clumsy with power settings. When the main run is finishing the output again slows down or ceases. Some traces of 1-propanol might find it’s way into the last few dls. If that happens the product makes pretty good white rum for drinks.
Tails
Now you can collect the tails with both cranking up the power slightly and doing a slow collection, or upping it more and doing a quick collect. There’s not much ethanol left in the mash, so unless you are after whiskey or rum you may very well finish the run now. Turn off the power, remove insulation and let it cool down.
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