Fermentation question?

[Singleinfusion208]

Hello when I see fermentation for a given recipe say to slowly raise the temperature. Like for example the fermentation slows, slowly raise the from 68f to 72 °F (22 °C) over the last couple days, which increases the activity of any still-active yeast cells and helps ensure complete attenuation. Now how many degrees per day would slowly raise the temp be 1f per day or 2f per day?

 

[ncbrewer]

The Yeast book suggests letting it rise 4 - 10 degrees over 1 - 2 days.

 

[ChelisHubby]

2 degrees a day won't hurt it after say day5 of fermentation.
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