StillerBoy wrote: ↑Fri Mar 05, 2021 10:51 am
JakeB wrote: ↑Fri Mar 05, 2021 8:41 am
My column is a cm design, I set the cooling output temp at half way through the range that produces getting a drip drip spurt off take speed and take off a heads jar until I can't detect any heads (usually about 200 - 400ml).
You don't mention the column length or what the packing used is.. both effect the purity of the finished product..
How is the water system setup.. one water line or dual water line..
You don't mention the purity of your product.. what abv percentage is the product.. nor do you state the boiler load of your run where you remove only 200 - 400ml of heads nor mention the abv of the load.. I remove waymore heads than that on a boiler load of 7 gal at 38 % abv..
Adding feint to a neutral run is something I would not recommended doing.. the sugar bite or mouth burn is usually cause by heads..
Mars
Sugar bite may have been the wrong descriptor. I have heard the flavor profile of sugar only washes described that way on Stillit as well as other places on the net. It is not a mouth burn, much the contrary. I find the commercial stuff has much more of that prickly attacking the tounge feeling at 80 proof than mine does at 100 proof. It's more of a rounded flavour profile I seek.
I have little or no heads, despite the feints. The "heads" I refer to, some people would consider drinkable. The foreshots not so much. I compress my heads by balancing the column, then adjusting my cooling till it barely drips for 100ml, that part I consider foreshots, it is almost all methanol and goes straight down the sink. The next 200 - 400 ml has a decreasing methanol taste until I can not taste any. I check the taste every 25 - 50ml after about 150ml till it's gone. When I flame test the result I get a beautiful blue flame that can not be seen in the light.
As far as my column, I.have been avoiding discussion because it is a T500, there are plastic bits that are not supposed to be discussed here. Despite years of reading before doing something, I went with this because it was an easy way to start, box shows up, unpack and start distilling. Fits in my kitchen, then back in the box etc... I know it is not perfect, but I feel I have got some pretty good results, and can get better results with what I have.
I can upgrade to using just the boiler that fits on my kitchen counter with a 2" triclamp bulkhead. I have the bulkhead and in a couple months am going to get a 2" triclamp pot still head to use with it, though I have got some pretty good results doing DME whiskey by just pulling the packing out. A little after I get the 2" triclamp head, I can use what I have to set up a better VM setup by adding 24" spool with packing and a dephlegmator. Maybe in the future I might have the space to upgrade the boiler... but not right now.
As far as the offtake proof, that first 100ml foreshots comes off at 190 proof (cooling offtake temp 47.5 - 49.5c), the remainder comes off at 186 proof, till it comes off too slow to be worth it at a reflux rate that produces 186 (cooling offtake temp 62c), then I slow the cooling water down till cooling offtake goes to 70c and take off about 400ml of tails at around 140 proof before dumping my boiler. I do take cuts jars through the hearts in case of cooling temp hickups, a bucket with a pond pump supplying cooling water minimises unexpected cooling changes.
Boiler load is 20l of a possible 30l max. I make a 23l batch, some gets thrown down the sink while taking hydrometer readings, some is left behind with the trub after clearing. Some say you don't have to clear, but I find I get the best result with clear wash made using champaign yeast rather than bread yeast.
I have been throwing heads back in the next run as feints because as far as I can tell, it all gets refluxed out anyways. Hearts too heavy to come out until I reduce reflux rate, same with tails. Am I wrong about that? Would avoiding using feints on a reflux run improve results, even if same wash feints? There is a very notable change in flavor when I change the reflux rate, but regardless some of the flavor of the base sugar comes through throughout. I am thinking a partial mash, or some kind of grain adjunct will improve my results. I'm sure my upgrade path will improve results even more, but that has to wait for now.