Is there any caffeine in Kombucha

Caffeine is a naturally occurring compound found in tea and is an important nutrient for energizing the bacteria and yeast to build new cells. Based on this, it can be deduced that there is less caffeine than the content in the original sweet tea base, though the final amount is difficult to measure. However, studies have shown that caffeine from tea is balanced with L-theanine, an amino acid that provides a calm, focused energy minus the crash and burn that coffee and energy drinks are known for.