Nordic Ware Round Naturals® Cake Pan (Part number: 45404M)

These are the pans professionals choose, and for good reason. Natural aluminum is the top choice for baking. It distributes heat evenly for perfect results. 4″ Round cake pan is the smallest of the collection.
Features
Baked goods rise and bake evenly due to aluminum’s superior heat conductivity and the reinforced encapsulated steel rim prevents warping.
Natural aluminum commercial bakeware is made of pure aluminum which will never rust for a lifetime of durability.
Before initial use and after subsequent uses, hand wash with warm, soapy water. Dishwasher use is not advised, as discoloration will occur due to the cleaning agents used in automatic dishwasher detergent. This discoloration is merely cosmetic and will not affect the baking properties or the safety of the pan. Natural aluminum pans work well with parchment paper, silicone baking mats, and also traditional butter or shortening and flour methods. When roasting savory foods such as vegetables, butter, or cooking oil work well. Nylon, wood, or silicone utensils are recommended. Metal utensils and scouring pads may scratch natural aluminum pans, but will not affect baking performance. Aluminum is reactive to acidic ingredients such as vinegar and tomato products. These foods may darken, pit, or corrode the pan after prolonged use.