Stick On Brewing Thermometer Strip Adhesive Temperature Display 42-88F (2-pack) Review (2026)

What it is

This is a passive, adhesive thermometer strip rather than a digital gauge with a battery or probe. According to the maker's product page, the brewing-length version measures about 4.75 by 1.0 inches and uses a liquid crystal display that changes color across three bands, roughly blue below the active range, green at the current temperature, and tan as the reading approaches a threshold, so a brewer can read fermentation temperature from across the room without opening the fermenter. The strip peels off its backing paper and sticks directly to the outside of a glass carboy or plastic bucket, and a thin protective film is removed from the front after it is applied. It needs no batteries, cords or calibration, which keeps setup to under a minute and makes it approachable for a first fermentation.

Temperature range

The 42-88F range printed on the strip covers the temperatures most lager and ale yeasts ferment at, from cold lagering in the low 40s up through typical ale fermentation in the upper 60s and low 70s, with headroom into the high 80s for warm ale conditions. That range does not reach the 90F and up territory that some saison strains and many kveik strains are pitched at, so a brewer running those yeasts at their preferred warm temperatures will read past the top of the display rather than see an accurate number. For anyone sticking to standard lager and ale fermentation temperatures, the range comfortably covers the whole brewing season without a gap.

Setup and use

Applying the strip is a peel-and-stick job: remove the backing paper, press the strip flat against a clean, dry section of the fermenter, then peel a thin clear film off the display surface to reveal the readable crystal window underneath. The maker's instructions describe it as one-time use and hand wash only, so once a strip is committed to a vessel it is meant to stay there rather than be moved between fermenters, and the vessel itself should be washed by hand rather than run through a dishwasher once the strip is attached. There is no calibration step, which is part of the appeal for a brewer who just wants a quick temperature glance rather than a precise lab instrument.

Two-pack value

Buying two strips together makes sense for anyone running two fermenters side by side, such as a lager and an ale at the same time, or a primary and a secondary vessel that both need temperature tracking during an active fermentation. Because each strip is described as one-time use, a 2-pack also means a brewer does not need to place a fresh order after just one batch if a second vessel needs monitoring soon after the first. It does mean the pack runs out after two applications, so a household running three or more active fermenters regularly will need to buy additional packs rather than treating this as a lasting supply.

Who should buy it

This 2-pack fits homebrewers who want the simplest, cheapest way to check fermentation temperature at a glance and who ferment lagers and ales within the roughly 42 to 88F window it covers. It is not the right pick for saison or kveik brewers chasing higher fermentation temperatures, since those runs push past the top of the display, and anyone brewing in a dim fermentation chamber or closet should note the color bands can be hard to read without good light. For a straightforward two-fermenter setup within normal lager and ale temperatures, the low cost and instant application make it an easy accessory to add to a starter kit.

Frequently asked questions