u/FourPz

I bottled my second batch last friday since it was getting around to the level of acidity I like. I tried burping one today just to check if carbonation is forming and its flat as water. I put 1 1/2 tablespoons of monin flavored syrup (1 strawberry and 1/2 lavender) which have sugar and no preservatives. My temp is always around 21C.

Is 21C too cold? I bought a heating mat for my F1 jar, should I do the same for the F2 bottles?

What would be the recommended temp for accelerating the process?

Thank you!