temp stability

[crazyeyebrow]

if my primary fermenter is rising and dropping lets say im struggling to keep it at 21d its going up to 24 and down to 19d during night and day can this harm the process 21 is ideal my instructions say

 

[Steveruch]

Recipe? Yeast?

 

[McKnuckle]

24ºC = 75ºF and 19ºC = 66ºF

You are correct in surmising that this is not ideal. The wide and frequent temperature swing, plus the maximum temperature itself will likely stress the yeast, causing it to produce esters.

Depending on the yeast variety and beer style, this could be pleasant or not so pleasant. So I agree that it would be useful to at least state the type of yeast and the style you're brewing.

 

[crazyeyebrow]

24ºC = 75ºF and 19ºC = 66ºF

You are correct in surmising that this is not ideal. The wide and frequent temperature swing, plus the maximum temperature itself will likely stress the yeast, causing it to produce esters.

Depending on the yeast variety and beer style, this could be pleasant or not so pleasant. So I agree that it would be useful to at least state the type of yeast and the style you're brewing.

It's a blonde beer sry

 

[HTH1975]

Is this ambient temperature or the actual temperature inside in FV?

 

[crazyeyebrow]

Is this ambient temperature or the actual temperature inside in FV?

What temp strip on bucket says

 

[Soulshine2]

if my primary fermenter is rising and dropping lets say im struggling to keep it at 21d its going up to 24 and down to 19d during night and day can this harm the process 21 is ideal my instructions say

you'll need to insulate it somehow and either put a seedling heat mat under it to keep heat or a wet towel over it to evaporate to cool.

 

[mulletmaster]

you'll need to insulate it somehow and either put a seedling heat mat under it to keep heat or a wet towel over it to evaporate to cool.

A storage tote or cube cooler (no condensation this way) filled with water would work to stabilize the temperature swings.

 

[HTH1975]

What temp strip on bucket says

That’s quite a large temperature swing to get in one day. Even if ambient temperature changes in my house, the beer only changes by maybe 1C