We are sorry to hear about your experience. We have some important tips for you to protect this aluminum set. 1) Use it on low to medium heat consistently. 2) Ensure it cools to room temperature before washing. 3) Prevent sudden temperature changes (Thermal Shock) on the cookware and lids. 4) Hand washing is recommended, although dishwasher safe. 5) Be careful when moving the pots, pans, and lids. 6) Avoid abrasive materials touching the cookware surface. Please know you can exchange or return the set anytime as part of the Member's Mark 100% Satisfaction Guarantee.