1. The set replaces multiple compromised pans at once
Most non-stick coatings degrade between two and four years. If your set is older than that, or shows visible scratches, the coating is no longer functioning as designed — and the surface food is in contact with is no longer the surface the manufacturer tested for safety.
Replacing one pan at a time perpetuates the problem. The Crumble Ultimate Ceramic Set includes 6 pieces (28cm Deep Pan, 20cm Saucepan, 20cm Fry Pan, 24cm Fry Pan, 28cm Fry Pan, 24cm Casserole Pot) plus glass lids and non-scratch utensils. One purchase resets the entire kitchen.