I'm going nuts trying to figure out efficiency problems and one possible culprit is my thermometer. I use an inexpensive dial thermometer like this (http://www.austinhomebrew.com/product_info.php?cPath=178_67_65&products_id=996) which I've calibrated using the ice water method and the boiling water method. I assume it's fine but it seems odd to me that all other thermometers in the house differ. I have a cheap floating one that sometimes matches it and other times does not. The kitchen digital thermometers we have also show different values so I have no idea if I should trust them.
So if I were to buy another thermometer to be my "number 1", any suggestions on what to look for to be the most accurate?
So if I were to buy another thermometer to be my "number 1", any suggestions on what to look for to be the most accurate?