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The following uncited content was relocated from the gauze article:
There are two types of wire gauze used in chemistry: a normally woven wire gauze, and one with a white circle imprinted on it. The latter has a ceramic composite to aid in the dispersal of heat. The normal set-up is a square stand with a support ring attached. The wire gauze is centered on the ring to allow the flame to be in contact with it to a certain extent, depending on the desired heat. In the context of laboratory experimentation, the combination of the wire gauze plus the added ceramic composite aids the uniform dispersal of heat. An object placed over this type of wire gauze will receive more uniform heat from a Bunsen burner than a naked flame. This property is important in various chemical processes where precise, even heat dispersal is needed. A consistent heat can be crucial for the successful maintenance of the chemical process intended. Because of this heat dispersal ability, wire gauze can be used as a cooling surface for beakers, Erlenmeyer flasks or other vessels without damaging the supporting surface.
