Well, I would say there pretty damn accurate. Ive always wondered this myself untill i got a waterproof digital thermometer for my MLT and thought i would test it out on some starsan/water in my fermentor...The proof is in the pic



Can you test on a plastic bucket? I use buckets and have wondered the temp differential.
Can you test on a plastic bucket? I use buckets and have wondered the temp differential.
How did the bucket do? I've got one on mine its reading 68° in my 68° house. Can't open her up as I am in my initial fermentation phase. I can check in about 5 days when I rack to secondary.