Just tried mine on the side of my fv (white plastic bucket) and it was pretty accurate compared with my Inkbird (about 1 degree difference), so pretty good for this purpose.
Have found big differences when using on the surface of liquid compared with an immersed thermometer and would not trust it for things like mash temp.
Have found big differences when using on the surface of liquid compared with an immersed thermometer and would not trust it for things like mash temp.