My buttermilk didn’t thicken in the allotted time period?
A. Occasionally buttermilk may take longer to thicken than specified in the instructions. This can happen for several reasons including possible drafts which might result in a lower temperature where the buttermilk is culturing. It is very important that proper temperature is maintained (70-77 degrees). It is acceptable to let the buttermilk culture for longer than indicated by the instructions and even if the temperature was a bit too cool, this will likely resolve the issue. Simply check the buttermilk every two hours or so and place it in the fridge once the culturing process is complete.
