Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Kills Coffee Makers

The smell of the CLR never came out of our Zojirushi drip coffee maker after running many gallons of water through it. CLR's manufacturer (Jelmar) said that this only occurs in coffee makers with carbon water filters, only in rare cases. Meanwhile our Zojirushi doesn't have a water filter. Jelmar also said the CLR can react with certain metals/chemicals like Tephlon, and that this is a risk of use (meanwhile the label doesn't list any such precautions). Thus, I caution anyone from using CLR in any food or drink application since there is a chance of residual smell or a chemical reaction that could impact your food, and therefore you.