Day 72 of 100 Days of Tupperware Today I am showing you another behind the scenes moment from the factory. Tupperware products are placed in hot water set to 85 degrees for 72 hours to check if there is any warp. This test confirms the strength and heat resistance of every piece before it reaches us. I will also show you how they test Tupperware for oven use and microwave safety. Everything is checked to make sure it can handle daily cooking, reheating, and serving without losing its shape. This