If you use tri-clamps you can throw on gloves to handle the hot pipe and undo/break a pipe to prevent the "suck back" and get a true visual of what is left in the thumper. This is always a good idea but with 2 SS kegs you're boiler won't collapse from pressure as it's pretty strong. Typically this is done with a vent in the pipe of the boiler itself. The way to stop this is to have a break or ability to open the pipe between the boiler and thumper and vent to the atmosphere.
STILL THUMPER FULL
Start your thumper about half full of either mash or low wines and it really can't run dry assuming it's just a thumper and you haven't added a heat source to the thumper (don't want to do this).īTW, you can't judge if it ran dry looking at it later because as your boiler cools down it will "suck back" juice from the thumper as the pressure changes in the boiler as it cools off. A lot of things not practical to do in a big distillery are easy to do at the home/hobby level and can help to produce better spirits. A 7.5 gallon thumper is easy to take out side and house down to clean. Home distillers have it nice from the standpoint that an extra buck per run for electric is meaningless if it helps to produce a better product for them. This would be impractical in commercial distillation but for the home distiller is pretty easy to do. You can even "oak" some sweat water to use for dilution after oaking is done as well. Matter of fact, you can hold back the "sweat water" to use specifically to dilute the distilled product back down to cask strength adding yet more flavor in. Not sure what the dilution part is about as you would not be adding water back later during the distillation process. So depending how you use the thumper you can add, not remove flavors. The spirit run could then be done without the thumper or could be used with feints from a previous run to again bring over more flavor. Thus the energy spent on 2 strip runs with thumper vs 3 typical strip runs without thumper will almost certainly use less energy as well. From the standpoint of the op he could for example do 2 strip runs using the thumper and likely have enough to fill his boiler with low wines. On a strip it's done quick and using a thumper of good size adds another benefit in that it allows you to strip more per run. With a thumper you can still run down low for fantastic flavor down to the 1 to 2% ABV (left in boiler) where lots of flavor resides but most people stop far short of, thinking they are wasting energy (but missing out on fantastic flavor). You're able to get more flavor as well as not lose alcohol from discarded grains. However if you are using a thumper for the purpose of being able to ferment on the grain and distill it then you are GETTING flavors this way, not loosing them.
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