Pyrex Flameware Metal Grid Hear Deffuser Coffee Teapot
for item 1527
This metal grid, heat diffuser or wire trivet so that it is not sitting directly on the burner.
It helps distribute the heat.
Avoid Sudden Temperature Changes to your Glassware. To avoid the risk of breakage due to a sudden temperature change to your Pyrex glassware, DO NOT add liquid to hot glassware, place hot glassware on a wet or cool surface, or handle hot glassware with a wet towel, wet potholder or other wet cloth. DO NOT place hot glassware directly on a countertop or any metal surface, or in the sink. Allow hot glassware to cool on a cooling rack, dry potholder or dry cloth. Be sure to allow hot glassware to cool as provided above before washing, refrigerating or freezing.