Yummyrum wrote:Sure I read somewhere about blue spirit causes by excessive amonia...are you over doing the DAP ?
Urrazeb wrote:Running a test batch now..
Cleaned boiler out and put in plain water to cover, added 4L of clean feints not related to the colour runs.
So far so good. 2nd jar in, no colour and clean heads.
I think maybe the moist environment is allowing the rust to develop and this is coming through when I run? :?
SBB wrote:Yummyrum wrote:Sure I read somewhere about blue spirit causes by excessive amonia...are you over doing the DAP ?
Ive read similar stuff Yummy, I cant be bothered looking around for it right now, from memory it has to do with to much nitrogen in the nutrients used. Or maybe that's just to many nutrients in general.
Postby pintoshine » Mon Aug 20, 2007 4:06 am
Most likely there was a lot of tails still in your column and it did a number on the copper from the previous run. It is always recommended to at least flush the whole thing between every run. Sometimes I will run a weak solution of caustic through the column to remove any off smells, left over acid or oils.
I have had bright green spirits come through anyway because of distilling wash that still had a lot of CO2 in it. The CO2 makes bright green copper carbonate.
Postby Victoryrider » Mon Aug 20, 2007 4:34 am
I think pintoshine has the answer. I rushed this ferment and there was definatly co2 still comming off. I flush the still out very well with water after each use, never had a problem before. BNet you nailed the problem!
Thanks!
sam_and_liv wrote:Well isnt this coincidental. Charge the boiler with a standard whisky wash I do, put the still on, think to myself gee it's been a while since I used this and it was left wet with some water in it last time. Ah doesn't look too bad in there :?
Yep, you guessed it, green fucking spirit :angry-banghead:
I know this is not the wash, it is the copper plates, I will persist for a bit and see if it cleans up by itself otherwise it will get stripped out.
Urrazeb, after cleaning yours last time did you dry the parts before putting it back together? Leaving them wet is the killer I reckon, especially water. From now on in winter I am going to do as BT1 suggests and blow dry it out after flushing :handgestures-thumbupleft:
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