Fermentation Heat Mat - 3 x 20"
Fermentation Heat Mat - 3 x 20"
Hero image 0 of Fermentation Heat Mat - 3 x 20", 0 of 6
Fermentaholics

Fermentation Heat Mat - 3 x 20"

|6 ratings

Key item features

  • Safe Heating: Offers efficient heating for your kombucha brewing vessel, maintaining an ideal temperature range of 75-85°F.
  • Perfect Kombucha: Prevents the common mistake of fermenting at too low a temperature, ensuring optimal kombucha brewing.
  • Adhesive Thermometer: Includes a thermometer to monitor fermentation temperature, allowing for easy adjustments.
  • Easy to Use: Instructions are printed on the heater; simply plug it in and adjust the placement to control the temperature increase.
  • Versatile Fermentation: Suitable for other home fermentations like kefir, sourdough, sauerkraut, kimchi, and tempeh.
  • Temperature Range: Ideal for maintaining kombucha temperature between 24-29°C, perfect for cooler environments.
  • Universal Fit: Fits most sized vessels and comes with a standard 110-volt plug; an adapter is needed for 220-volt outlets.
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Current price is $16.99
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Sold by Fermentaholics, LLCPro Seller
Fulfilled by Walmart
4.755020080321285 stars out of 5, based on 249 seller reviews(4.8)
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5 out of 5 stars
stars6 ratings5 reviews
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Showing 1-3 of 5 reviews

Jan 4, 2026
DiAnne
Sold byFermentaholics, LLCDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Good for ferments to have their own spaces.

This matt fits around gallon jars and is secured with a rubber band that is provided. I like that it allows me to put the jar anywhere and only warms the jar in use. I plan to get more of these. It helps me to keep my sourdough and other ferments separated and temp specific.

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Oct 20, 2025
lonniejean96
Sold byFermentaholics, LLCDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Great mat

Fermentaholics is great. This keeps my kombucha at a steady 90* with no problems.

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Apr 27, 2026
Rebecca
Sold byFermentaholics, LLCDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Perfect for keeping my kombucha at the right temp

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