Kombucha Heating Mat plus INSTRUCTIONAL VIDEO by Get Kombucha "I use this kombucha heat mat when I go to bottle my kombucha tea. I find that the extra heat on the bottled kombucha keeps the yeast active to eat the sugar and create that extra fizz in a shorter period of time". (5 stars) Stan C. ,Customer Review Ensure your kombucha is brewing at optimal temperatures for successful brewing with the seed heat mat. Intricate heating pattern allows for consistent and even heat distribution Instructional video entitled "How to get the most out of your kombucha heating mat to ensure for perfect kombucha tea every single time" UL safety listed an energy efficient - only 17 Watts! Comes with 1 Year Hassle Free Guarantee - All UL Listed Components