🍵 Brew Like a Pro with Craft a Brew! Maintain fermentation temperatures between 75-80°F for healthier, stronger brews. Included thermometer strip ensures you’re always in the know about your brew’s temp. Use it for fermenting kombucha or carbonating bottles for that perfect fizz! Adjustable strap accommodates 1 to 2-gallon jars for maximum brewing flexibility. Achieve consistent, delicious kombucha with optimal temperature control. Waterproof Design 19x5 in Size 4 Temp Settings The Craft a Brew Kombucha Jar Heat Wrap is a versatile fermentation heating pad designed to maintain optimal brewing temperatures with four adjustable settings. Measuring 19 inches by 5 inches, it fits various jar sizes and includes a thermometer for precise monitoring. Waterproof and multi-functional, it ensures repeatable results for your homemade kombucha.