I have an "beer and wine " mercury type thermometer, that came with a brewing kit. I checked the calibration and it seems off. I put it in a glass of ice water, from my fridge water dispenser, and it read 34 F, I checked the temp of some boiled tap water and it read 208 F.
Seems strange that at the bottom end it reads high and at the top it reads low. How can I compensate for this? Should I correct for the boil side, because I am using it to check mash temps? Any ideas. I kind of like this thermometer, but any recomendations on a new to buy would be helpful. Thanks - Dirk