Fireflower
Junior
- Joined
- Aug 13, 2007
- Messages
- 3
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Hello all, and thanks for this interesting forum! I have a bit of a skull scratcher that I hope someone can help me with.
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Question – does rapid fermentation (or higher than advised fermentation temperature) lead to overproduction of methanol?
I have run into this twice now and it puzzles me. I had a batch of banana that I distilled (laboratory quantities & methodology for analysis only) and it tested out at 70% methanol! Nasty nasty. Now I have a raspberry that is in all other respects a beautiful wine – deep red color, clear, big body, HUGE flavor and a nose you could use for air freshener! However, it finishes with a positively astringent character, almost like you drank something hydroscopic; acetone maybe. It dries your tissues! You want to drink water after you sip it. I think I’ve got the big methanol problem again… I’m going to borrow a distillation tube and check this batch too.
Both wines fermented frumiously to about 19% Alcohol in just three days on 71B1122, averaging 72degrees throughout. I’m guessing this was the cause, but I don’t know for sure. Any ideas?
Thanks in advance,
Marc
<?amespace prefix = o ns = "urnchemas-microsoft-comfficeffice" />
Question – does rapid fermentation (or higher than advised fermentation temperature) lead to overproduction of methanol?
I have run into this twice now and it puzzles me. I had a batch of banana that I distilled (laboratory quantities & methodology for analysis only) and it tested out at 70% methanol! Nasty nasty. Now I have a raspberry that is in all other respects a beautiful wine – deep red color, clear, big body, HUGE flavor and a nose you could use for air freshener! However, it finishes with a positively astringent character, almost like you drank something hydroscopic; acetone maybe. It dries your tissues! You want to drink water after you sip it. I think I’ve got the big methanol problem again… I’m going to borrow a distillation tube and check this batch too.
Both wines fermented frumiously to about 19% Alcohol in just three days on 71B1122, averaging 72degrees throughout. I’m guessing this was the cause, but I don’t know for sure. Any ideas?
Thanks in advance,
Marc