- Joined
- Jan 19, 2016
- Messages
- 3,878
- Reaction score
- 3,325
- Points
- 113
Once it ferments at 18C, it shouldn't need a D-rest. You'll want to keep it at a steady temp until it reaches FG otherwise it could start to stall when it cools.Thanks, I have put some ice on the top and on the sides. The temperature is a bit high (18 celcius) but stable. On another note, would you suggest when the temperature falls to a more normal level within a week or so (when the fermentation starts to end), should I allow that or heat it back to the current temp to deal with the diacetyl?
The 840 yeast may or may not stay clean at those temps and is likely to throw a fair amount of acetaldehyde. Liquid yeasts aren't as consistent without making a starter - cell count on liquid yeast drops pretty drastically as it ages. If you made a starter you could have a good beer out of it but without one, you may have a fairly stressed yeast colony that's wanting to produce a fair amount of esters. Time will tell and it should be quite drinkable, in any case.