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FermagraF°™ Adhesive LCD Thermometer


SKU# 41990

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FermagraF°™ — the newest innovation of thermometers. Round for easy placement on the Big Mouth Bubbler® or your fermenter of choice.
  • Bright blue color is easy to read at a glance.
  • Includes temperature ranges for beer and wine styles.

Availability: In stock

FermagraF°™ Adhesive LCD Thermometer

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  • FermagraF°™ Adhesive LCD Thermometer
Product Details
Keep your fermentation on track with the FermagraF°™ — designed to adhere ​to​ your Big Mouth Bubbler® fermentor or other​ fermentation vessel. This thermometer uses liquid crystals to indicate temperature within ±2°F ranging from 46°F to 84°F. The new circular design is meant to keep the information you need in one compact space so that you can quickly read your fermentation temperature at a glance.

In addition, the FermagraF°™ has clearly marked fermentation temperature ranges for Lagers, Ales, and Belgian Ales, and your Red and White wines so that you can always ensure that your yeast is kept nice and comfy.

Dimensions: 3" x 3"
Additional Information
Support Documents:No
3.9 / 5.0
16 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
I like it
I like it. It is nice and pretty. It is strongly adhesive and can not be removed and reapplied. If removed it will rip. So when placing it on a carboy make sure you have it in the desired position.
January 31, 2017
9 months ago
Works as advertised
Much easier to read the temperature than the strips.
January 30, 2017
9 months ago
Solid and accurate
Adhered well and stayed on even when submerged for extended periods. Accurate when tested by other methods.
August 24, 2016
Junk, 7 degrees off
Started brewing mead for the first time, and put this thermometer on my little big mouth bubbler. Checked the temp after about 3 hours (first time with this device), and it read 73. So I put my fermenter in a bath of cold water with a little ice. Next morning it read 75, so I tried the evaporation cooling technique putting my fermenter in a tray of water with a wet shirt over it and a fan, and I dropped the temp in the room from 75 to 72. Then 10 hours later this thermometer read 75. I couldn't believe it so I checked it with a probe thermometer and my probe temp showed 68. So I grabbed a meat thermometer and it said 68. This thing was 7 degrees off! Completely useless. My mead temp is fine and this piece of junk had me freaking out that I was going to have swill.
April 5, 2017
7 months ago
It does the job
It's an external stick on thermometer. It does what it's supposed to do.
July 31, 2017
3 months ago
Works as advertised on a little big mouth bubbler.
July 10, 2017
4 months ago
Accurate and Convenient
I use this on the side of a 6.5 Big Mouth Bubbler and it is accurate and easy to use. Sometimes you have to look closely to see the temp, but that is a minor thing.
March 23, 2017
8 months ago
Easy temp guide for your fermentation
Peel the label and simply apply to your big mouth or plastic carboy. Where I am at, I have to ferment in my room and this little sticker gives me a warm fuzzy and confirmation on where my fermentation temp is at.
User submitted image
Added Jan 15, 2017
January 15, 2017
10 months ago
It works, and it's easy to read. Exactly what I needed :)
May 26, 2017
5 months ago
Does what it should.
Does what it should.
August 26, 2016
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 4 questions Browse 4 questions and 8 answers
Inside fermenter or outside?
A shopper on Jan 13, 2017
BEST ANSWER: outside. i put mine on my plastic bucket primary fermenter. Not incredibly useful during chill stage because i submerge the bucket in an ice bath, but decent to monitor temperature during primary fermentation area.
After this is applied to the fermentation vessel, can it be removed and re-applied, for example for cleaning?
Or, can this thermometer withstand cleaning and sanitizing multiple times?
H E on Aug 4, 2016
BEST ANSWER: Yes, this is applied directly to the outside of the fermenter. It is not designed to be removed. You can wipe it clean and sanitize it repeatedly.
The description says it is designed for the Big Mouth Bubbler. I am assuming they are referencing the larger 5 and 6 gallon fermenters. How well does this fit on the small one gallon fermentors?
S B on Jul 22, 2016
BEST ANSWER: It fits great on every big mouth bubbler design. The little BMB has one large flat space that can accomodate this circular 3"x3" sticker.
Why is this stick on thermometer reading a constant 84 on my glass carboy primary and my electronic read 67?
A shopper on Sep 16, 2017

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