FermagraF°™ — the newest innovation in thermometers. Round for easy placement on the Big Mouth Bubbler® or your fermenter of choice.

Keep your fermentation on track with the FermagraF°™: purposefully designed to adhere ?to? your Big Mouth Bubbler® fermentor or other? fermentation vessel. This thermometer uses liquid crystals to indicate temperature within ±2°F ranging from 46°F to 84°F. The new circular design is meant to keep the information you need in one compact space so that you can quickly read your fermentation temperature at a glance.