Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Temperature markings wiped off with a damp sponge

I bought this because Cooks Illustrated magazine rated it as the best over thermometer and I trust them. This had been in my oven for about 1 year when I decided the food splashes needed to be cleaned off because they were making it hard to read the numbers. I used a damp soapy sponge and wiped the face of the thermometer (it was cold).The temperature markings wiped right off!I didn't put this in the dishwasher or use an abrasive like Ajax. Just soap and a sponge. Now it has no numbers. Now it is useless.