The Chobani yogurt cup size was reduced to 5.3 oz from its original 6 oz size. Powerade bottles were reduced in size and they shrunk from 32 oz to 28 oz. It seems that many cereal companies decided to use the same tactic – they gradually reduced the size of their product over time. TwixIn an attempt to reduce the calories in a single Twix bar, the manufacturer decided to reduce its size. The Pyrex cookware was known to be rigid, and the glass used to make the products was heat-resistent.