Which side of a yeast's range a temperature falls, beyond FERMENT_TEMP_TOLERANCE_C, or null if it's inside.
null
This is exported so other code that reports fermentation temperature against a yeast's range agrees with these checks.
Which side of a yeast's range a temperature falls, beyond FERMENT_TEMP_TOLERANCE_C, or
nullif it's inside.This is exported so other code that reports fermentation temperature against a yeast's range agrees with these checks.