Instruct: Classify a given review into positive or negative sentiment.
Query: Poor product quality control.

Like a few of the other reviews my thermometer stopped working after 4 uses. I bought this model because of the positive reviews. I only use this thermometer for larger cuts of meat, turkey, prime ribs, bone in loin of pork roast. Three times it worked fine, till last night on my 5 rib prime roast. After an hour the pointer still laid on the resting peg. Fortunately I had an instant read thermometer to complete the cooking. I won't be buying a Polder product again.