Q: Do You Have to Blanch Sweet Corn Before Freezing?
Blanching corn to inactivate the enzymes, resulting in better quality frozen food. Blanching also cleans off surface dirt and organisms, brightens the color, reduces enzyme activity that causes color and flavor changes, removes air and softens the texture so vegetables are easier to pack into containers.

For best quality, harvest and prepare corn for freezing rapidly to avoid changes. Sweet corn should be frozen within 2 to 6 hours after harvest.

For complete information on freezing corn, including freezing corn on the cob, go to http://web.extension.uiuc.edu/mclean/kitchen/