Homebrewing Stack Exchange is a question and answer site for dedicated home brewers and serious enthusiasts. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have trouble with controlling temps and do not have much room for my growing collection of fermentation bins but I'm trying the swamp cooler for my 5L DemiJohn white wine kit. I'm gonna get some new ale/lagers on the go but I 'd like to know if the Mangrove Jack M10 Workhorse yeast which can ferment up to 32c would produce less fusels as it's able to hit higher temps?

share|improve this question

No, it won't. Yeast companies generally overestimate the high end temps. They tell you where the yeast will work best, not necessarily the temps that make the best beers. And no matter what the high end is, you'll always get better results by pitching at the low end (or below) of the stated temp range. The first 72 hours are the most critical. If you can keep the temps in the mid 60s for the first few days, after that it doesn't matter nearly as much. Pitching at 32c almost guarantees fusels, no matter what strain of yeast you use.

share|improve this answer
Good advice thanks. Sadly even with a swamp cooler I'm hitting 24c – jay Aug 2 '14 at 17:31
Drop some frozen water bottles into that swamp cooler too @jay – brewchez Aug 3 '14 at 12:21
sanitized Frozen, water bottles. AKA, sanitize the water bottles before dropping them in. In this case boiling is not recommended :P – Atron Seige Aug 4 '14 at 14:16
If they go in the swamp cooler, there is no need to sanitize them. – Denny Conn Aug 4 '14 at 15:29

The higher the fermentation temp, the greater your chances of fusels.

share|improve this answer
I've got a feeling it's going to be fusel city but with the ice I'm down to 22 not sure how much damage is done as I'm in to 72hrs – jay Aug 3 '14 at 13:04

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.