Double-sided heating pad for fermentation - Double-sided construction: front black waterproof fabric resists dirt; back white insulation cotton reduces heat loss; the pad is washable, but the interface and other parts must not be submerged in water. - Strong insulation layer: aluminum film plus pearl cotton inner layer, tightly stitched and durable; designed for long-term thermal insulation and reliable hot and cold use. - Precise temperature control: includes a temperature control meter with 0.1 C accuracy; set the desired temperature to save time and improve consistency. - Odor-free and safe: no peculiar smell and does not affect the flavor of foods during fermentation; built-in 75 C thermal protection prevents overheating for added safety. - Practical use scenarios: ideal for home fermentation of dairy, vegetables, and other foods at controlled temperatures; suitable for dough proofing or keeping warm during fermentation; supports small-batch experiments or incubation requiring stable heat.