Kombucha Heater | Fermentaholics Kombucha Brewing and Fermentation Heat Mat | Keep Your SCOBY Happy and Productive by Brewing in The Proper Temperature Range

Heats good and consistent. Low profile so it's easy to watch/monitor your batch of kombucha. Works well on the 2 gallon size too. Only draw back is having to use a rubber band to hold the heater around the jar.

This is our 2nd mat! I bought one because my kombucha would mold in winter when house is cooler than 70 degrees. I just lay it flat in the closet and set my kombucha and keifer on top. It is perfect. So when my daughter was struggling with her kombucha and sourdough, I bought her one. She said it is a gamechanger for her sourdough bread. She puts it in her oven overnight. The oven light was too hot but this mat is perfect.

This seems to keep the kombucha at an acceptable temperature, although I think being able to select what one believes to be the perfect temperature would be great. I wish this had variable temperature control, not only to select what I think is perfect but to also maintain a narrow temperature range. From what I can see, it keeps the liquid about 15 degrees warmer than the ambient temperature. I would love to keep mine within a few degrees, but because of this, it has a range of about nine degrees, because my home ranges that much. Again, it gets the job done so I have no complaints, but it would be nice to control it myself. Definitely worth the money and not worth returning to get one with control. Highly recommended if you want to set it and forget it, which certainly does have its appeal! I metered it and at sixteen cents a kilowatt hour, it costs about two cents a day to run. Also, the cord is quite long at right about six feet, which is nice.

Perfect for my half gallon and 1 gallon jars of kombucha. The rubber band it comes with to wrap this around your jar doesn't work well, so I use a clip instead. The thermometer it came with broke after a week. The wrap is super simple. Nothing to do but wrap it around your jar, plug it in, your done. When it's cold in my house, I wrap a tea towel around the jar too after the heat wrap is secured on.

Works great! Would purchase again!!

Energy efficient 7 watts, high quality, temperature adjustable by placement, fantastic product, thank you

Misleading name and under achiever, this heat mat is actually a heat wrap. I bought it as the recommended temperature to make kombucha is 75 to 85 degrees. My house in winter is usually 68-70 degrees. With the heat wrap I was only able to get my kombucha temp to 77 or 78 degrees max. As a result, my second batch got moldy and ruined my scoby. Now, starting over and trying an actual mat that goes under the jar rather than a wrap which is loosely held on with tap rubber band. I love this company, but do not love this product. They need to do better.

Without a temp control, I was skeptical at first. Instructions say for more heat, just wrap the device tighter around the jar (using a rubber band that comes with) or loosely wrap it for less heat. But that worked just fine! I like keeping my place cool about 67-68F and that's awful for brewing kombucha. I had trouble with flimsy scoby development and even mold once. With this little heater, I get a gorgeous new scoby and excellent quality beverage. Highly recommend if you brew in cooler climates and want consistent good quality. And thinking back now, a thermostat is just one more thing that can go wrong. K.I.S.S. ,right?

This is my first time brewing a batch of kombucha. My friend, who is an avid brewer and has helped me with getting started cannot believe how well this heating belt is working! She is going to buy one for herself. My scoby is doing really well and the heating belt has kept it at a consistent temperature for the duration of my brew. I will be transferring my kombucha to individual jars tonight. I highly recommend this product.

Good heater. I've used it on 1 gallon jars of kombucha and it's too powerful(a good thing) so I would leave it sitting loosely around the base of the jar and it worked well. Currently I have it heating a 10 gallon batch in my 15 gallon stainless steel brew kettle(bought specifically for kombucha brewing) and its holding the 10 gallons at a consistent 24c(75f). Pretty great considering how large of a batch this is. My house temp is 20c but 24 is the ideal temp so couldn't be happier using it for my brew(ensuring quick and safe fermentation). I bought it when it was cheaper at around 25$CAD and I hope they will lower the price back to that in the future. Overall, I would definitely recommend this for both small and larger batches.

Made our brewing quicker and more consistent. Used on 2 and 3 litre jars. Wraps around easily. Plenty of cable length which is safely in a fixed connection to the device.Produced good outcome in 8 or 9 days. Bought 1 to try and another after successful use.

As with all amazon products, it arrived within 12 hours of ordering it (yay!) However, when I opened the box and found it to be a USA power adapter my excitement was shot down like a lead balloon. So off I go now to Wilko to purchase an adapter... whats the bet they also sell heat mats eh! Another side note is that there is no temperature control - its either on or off. You get the "control" from mat placement.

Looks small but works. Wrap small towel around it, Jar and pad. Keeping temp at 82 Fahrenheit on the kitchen counter.