Anavrin wrote:
Hi Capt-Cudellez
I'm interested in how you remove your heads the night before, are you measuring the output vapour temp and controlling the CM cooling so that only vapour that boils below a certain temp is collected? I think that's possible with a CM still like the t500, I'm toying with the idea of buying a Still Dragon Deflagemator so that I can do the same, although I feel a build coming on because this close to xmas I have no penny's for shiny SD stuff, but lots of spare copper.
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Hi Anavrin,
Sorry I missed your question - I'm running a VM. If running really slowly on low power and an extended period of equalisation of the column (100% reflux) the heads can be concentrated down to about 10% of the total volume,of course this is depending how clean your ferment is, what your fermenting etc, but 10% is a good target, and if your fermenting consistently, your heads are usually pretty consistent too.
So charging the still with 30L of 27% low wines = 8.1l of alcohol - so collecting at 95.6% I'd expect the first 850mls to be heads.
I would probably collect just over that shut down for the evening, then start up the next day after a short equalisation - I'd put the first 50mls or so to heads and I'm right into the hearts.
If I was doing a large run like that in a single sitting - I wouldn't be bothered with a long equalization and slow collection - the heads would probably be closer to 15-16% of the volume but I'd be finished much sooner.Statistics: Posted by Capt-Cudellez — Tue Nov 11, 2014 8:26 pm
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