Fermometer - Adhesive Thermometer

Fermometer - Adhesive Thermometer

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Keeping the right temperature during the fermentation is essential to the performance of your yeast. Imagine being able to just glance over at your fermenter and instantly know what temp it’s sitting at. With the Fermometer you get just that! It is a liquid crystal thermometer that adheres to the side of a carboy, bucket, or even stainless conical to tell you the fermentation temperature. (Fahrenheit only, not available in Celsius.)
What makes it a favorite among homebrewers is it gives you a more precise scale of 44–86°F, which the cheaper generic brands do not. It also has suggested Lager and Ale temperature ranges printed right on it. An example of the more precise scale would be that on this unit it’s easy to tell 1 degree of difference, say between 72° and 73° degrees. The more generic units can sometimes jump as much as 4° degrees.
Savvy homebrewers know that even 1 degree of temperature difference can have a big affect on the final flavor of their beer. And even if you don't yet have control over temperature, it is still helpful to know the exact fermentation temperature and to log it in your records.
Item # MT410
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.02 LBS
Community Q&A

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Why did you choose this?
MoreFlavor Store
Double check on the Inkbird
Murray Van D on Jan 8, 2022
Easy to use
Marcos Antonio R on Dec 15, 2021
Double check on the Inkbird
Murray Van D on Jan 8, 2022
To check the temp of my mead
Walter W. S on Dec 24, 2021
Easy to use
Marcos Antonio R on Dec 15, 2021
Been using for 20+ years find them to be accurate
NORMAN RYAN on Dec 2, 2021
To replace my thermometer on my current carboy
Brittainy C P on Nov 24, 2021
Temperature control is important
David K on Oct 29, 2021
Mike C on Oct 15, 2021
need another one
charles s on Oct 8, 2021
It looked space-aged
Rick P on Oct 8, 2021
Used in the past and works great
Brent J on Aug 24, 2021
Convenient way to check temps on carboys
Lorraine S Z on Aug 24, 2021
Making wine at home, need to ensure correct temperature
Michelle C on Aug 20, 2021
New big mouth bubbler and want a quick visual temp indicator as backup
Paul G J on Jul 20, 2021
My current ones are 10 years old.
Christopher M on Jul 16, 2021
new use
Matthew S on Jul 12, 2021
to monitor temperature
Alison G on Jun 22, 2021
to ck temp
william m on Jun 9, 2021
Why not?
Jay F on May 26, 2021
Temp control
Aaron K on May 8, 2021
My fastfermenters have one built in, need one for this unit
Randall B on Apr 29, 2021
monitoring temperatures
derek f on Apr 27, 2021
makes fermenting easier
Thomas C S on Apr 27, 2021
Always good to slap on the side of fermenters. Adds 5 horsepower.
Andy H on Apr 23, 2021
Why not know your temps
Shawn M on Apr 23, 2021
Easy to use
JasonD K on Apr 19, 2021
A must have to monitor fermentation temp
Kyle M on Apr 13, 2021
These work great!
James Duclos on Mar 31, 2021
to know the temperature
Gabriela T on Mar 13, 2021
I have a surface read thermometer but it's nice to be able to get a reading at a glance.
Sean T on Mar 8, 2021
Herbert B on Mar 3, 2021
fermenting in kegs - it would be useful
Matthew S on Mar 2, 2021
Need new fished for fermenter
Adam Peppas on Feb 23, 2021
Accurate temperature read
Augustine S on Feb 11, 2021
I need them.
James B on Feb 9, 2021
much better than opening and taking temperature samples
Eric C on Jan 29, 2021
These work really well - my fifth or sixth one.
Jeff Leepard on Jan 25, 2021
Recommended for beginning brewing
Eric R on Jan 20, 2021
to keep track
Brian G on Jan 18, 2021
James H on Jan 16, 2021
works well - easy to read
Jeff Leepard on Jan 16, 2021
Goes with my new FerMonster
Sean O on Jan 15, 2021
Quality control
Lori Lyn G on Dec 29, 2020
add on option
Gregory S on Dec 16, 2020
have one of these on my current carboy and its very helpful
Warren L on Dec 15, 2020
These seem to work really well. Highly recommend!
Jeff Leepard on Dec 11, 2020
keep the yeast warm and cozy
Justin on Nov 28, 2020
looks handy
Steven J C on Nov 26, 2020
Try to keep better track of fermenter temp.
Jeff Leepard on Nov 26, 2020
used one before and they are great
Thelanna M on Nov 18, 2020
for new fermenter
David R on Oct 29, 2020
To check the temp of my mead
Walter W. S on Dec 24, 2021
Been using for 20+ years find them to be accurate
NORMAN RYAN on Dec 2, 2021

4.8 / 5.0
53 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Good Thermometer
Only drawback is it is hard to separate the backing so it sticks. It should have a perforation
March 28, 2021
10 months ago
Rated 5 out of 5
It’s a great tool. Used for constant temperature checks on a large glass jar for sourdough starter.
February 18, 2021
11 months ago
Rated 5 out of 5
Work like a regular temp. Easy to use
January 29, 2021
1 year ago
Rated 5 out of 5
Works great, pretty accurate when checked against thermometer.
January 21, 2021
1 year ago
Rated 5 out of 5
I am ordering more
They stick to my fermenter and I can easily read the temp. Using this device is a step forward to improved temperature control in order to make better beer.
December 2, 2020
1 year ago
Rated 5 out of 5
Better than others I've tried.
I have a couple variations / brands of adhesive thermometer (AT) and I prefer this one over all others. The length of the AT isn't ideal for all brewing vessels, but the markings react well and are clear and easy to read even in low light.
October 12, 2020
1 year ago
Rated 5 out of 5
Works like they all do
Sticks well, what else is there
September 8, 2020
1 year ago
Rated 5 out of 5
Good quality
Used this temperature strip before very actuate.
September 2, 2020
1 year ago
Rated 5 out of 5
Works well. Really needed something to make sure my Temps were at least close to accurate
August 11, 2020
1 year ago
Rated 2 out of 5
Works, but does not hold up to moisture
I wanted to get something to help monitor the temperature of a 6 gallon carboy, but this thing does not want to stick once it gets wet. It just comes right back off again.

There are no instructions, and nothing else came with it. I'm assuming if the temperature inside the carboy is reached on the strip, it shows a color. But what do the colors mean? Who knows. I'm sure I'm the novice idiot minority here among home-brewers, but you'd think they'd simplify it just a bit for those of us that aren't masters of the art yet.
August 4, 2020
1 year ago
Response from MoreFlavor
Thank you for your review and we apologize for the confusion with this product. The colors are just there to highlight the temperature range. If three numbers have colors underneath them, then you are in the middle of that range. If just two numbers are different colors then you are just in between those two numbers. Hope this clears up some of the confusion. Cheers!
August 6, 2020
Malcolm lieban