No peculiar smell: This household fermentation machine has no peculiar smell and does not affect the taste of food during fermentation. It has a built-in 75C thermal protection to prevent excessive heat preservation from causing the heating pad temperature to be too high and increase product safety insurance Excellent thermal insulation inner layer: aluminum film + pearl cotton material, tight and tight, neatly stitched, will not burst the bag, meticulous workmanship, long-term thermal insulation, hot and cold dual-use. Size: Insulation box 30 * 29 * 19cm, heating pad 30 * 30cm, inner line length 1.3m, outer line length 90cm Precise temperature control: which can accurately control the temperature up to 0.1C. Set PO (start temperature) to 24, P1 (stop temperature) to 33.4C, and the temperature control meter shows 24 C, the indicator light is on for normal heating, when it reaches 33.4C, the indicator light is off and stops working, P1more than the PO=heating mode. Temperature control range: -50-110 degrees Celsius Double-sided material of heating pad: black waterproof fabric on the front, more comfortable for dirt resistance, white insulation cotton on the back can reduce heat loss, the electric heating pad can be washed, but the interface and other parts are not allowed to enter the water Versatile: Ideal for making yogurt, sous-vide, tempered chocolate, and a variety of probiotic superfoods, including soft cheeses, fermented butter, kombucha, tempeh, and kefir NOTE: Before Christmas, when purchasing products, we will give you a freeChristmas card as a gift. Welcome to make your purchase!