Blanching is scalding vegetables in boiling water for a short time. It helps retain the flavor, color and texture of vegetables that you plan to freeze. With a granite-ware blancher your vegetables will cook faster, it cleans easier, lasts a lifetime, and is dishwasher safe. Comes with instructions, including blanch chart for freezing vegetables. 7-1/3 Qt. Made in USA. (Not recommended for glass cooktops.)