Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I don't like that they can't be sterilized

It's important to me that EVERY item I use for feeding my baby can be sterilized. Had I known these are made with cheap plastic that cannot be sterilized, I would never have bought them. Too bad because it has the nice funnel-shaped top I have been searching for for easy and more efficient dispensing.Since I don't care to pay for shipping to return these to Amazon, I decided to give them to the Goodwill instead.If you have an infant under the age of 1 and you sterilize bottles and nipples, good luck using an non-sterile formula dispenser.