Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best protein powder

This is the best protein powder I have come accross. I use it in coffee, smoothies and even to make baked protein bars and it tastes great. It dissolves really well in anything. As with any protein, do not add it to anything hot or it will curdle, make sure you temper it first. Amazon has the best price when you count the free shipping.