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Think I've mastered my Boka but need a little help

PostPosted: Sun Jul 06, 2014 6:03 pm
by Anavrin
Hi Guys

I think I've mastered running my home made Boka, I packed the column with 1 stainless scrubber, pushed up to under the plates, then filled it with 2Kg of 6mm ceramic raschig rings, I filled it with 25litres of lentil wash at 12%.

Once it got up to temp I lowered the power by 25% to 2250watt and after a little stabilisation time, opened the valve a tiny bit, it's now been running for almost 2 hours, the collection rate is slow (250ml every 35 mins) but it's a consistent 93% and the temp probe has been stable at 81.8°c the hole time, slow but so far so good.

Because I'm using a 12% wash for a spirit run, can anyone advise roughly what cuts I should make between heads, hearts and tails?

So far I have collected 3 jars of 250ml, I'm pretty sure I'm into the hearts now but would like a little advice please?

I'm assuming the hearts will be cleaner than my first attempt which involved stripping on the boka, watering down to 30% and spirit runs on an airstill

Re: Think I've mastered my Boka but need a little help

PostPosted: Mon Jul 07, 2014 1:16 pm
by Anavrin
Just when I thought I'd mastered it, it threw a curved ball at me! Mainly my fault though, I was getting a little impatient with it!

All was going well and I had 3 jars of 250ml @93% and two jars of 350ml at 93%, anyway the temp was still stable so I increased the take off a tiny bit and it seemed to make no diffence to the temp, I left it for 10mins but in the time the temp shot up to 90 in my absence, after that I couldn't get it stable again below 82,2 and I'm sure I could detect tails coming trough, I collected a bit more before shutting down.

I'm thinking I really need to strip 3 washes, dilute to 30% and use them all for a good neutral spirit run, it's been interesting doing a run straight from the wash but for the time it takes and the relitivle low yeld , I don't think it's worth itt