1. Odor operation: This fermentation machine operates without any unpleasant odors, preserving the natural flavors of your food during fermentation. It is equipped with thermal protection at 75°C for enhanced safety and to prevent overheating. 2. thermal insulation: Made with a combination of aluminum film and pearl cotton, the inner layer is securely sealed and expertly stitched to prevent bursting. This attention to detail ensures thermal insulation for both hot and cold applications. 3. Accurate temperature management: Our fermentation machine features an advanced temperature control meter that maintains temperature regulation within a precision of 0.1°C. You can set the starting temperature (PO) at 24°C and the stopping temperature (P1) at 33.4°C, with an indicator light showing normal heating at 24°C and turning off at 33.4°C to signal the end of the heating cycle. 4. Dualsided heating pad design: The front is crafted from black waterproof fabric for increased dirt resistance, while the back features white insulation cotton to reduce heat loss. The electric heating pad is washable, but it is important to keep the interface and other components dry.