Skip to Main navigation Skip to Left navigation Skip to Main content Skip to Footer

University of Minnesota Extension

Extension > Food > Food Safety > Preserving and preparing > Vegetables and herbs > Freezing sweet corn

Print Icon Email Icon Share Icon

Vegetables and herbs

Freezing sweet corn: Whole kernels

Deb Botzek-Linn

Why freeze corn?

Freezing is a quick and convenient way to preserve vegetables at home. Sweet corn is a popular, easy and excellent vegetable to freeze. You can enjoy the great taste of summertime sweet corn all year long by following simple, basic procedures for freezing vegetables.

Blanching is a must

Blanching, followed by chilling in ice water, are critical processes for producing quality frozen corn. The natural enzymes in corn need to be inactivated before freezing to prevent both loss of color and nutrients, and flavor and texture changes. These enzymes are inactivated by a hot blanch treatment. The chilling process prevents the corn from becoming mushy due to overcooking the starch.

Husk, blanch, cool, cut, package, freeze, eat

An electric knife is a handy
tool for cutting off the kernels.

  1. Husk ears and remove silk.
  2. Bring six to eight quarts of water to a boil.
  3. Submerge several ears at a time.
  4. Blanch the ears for four minutes.
  5. Cool promptly in ice water for four minutes.
  6. Drain.
  7. Cut the kernels from the cob. An electric knife is a handy tool for cutting off the kernels.
  8. Package the corn in freezer containers, leave one-half inch headspace.
  9. Seal and freeze at 0° F or below.
  10. For best quality, eat within 8-12 months of freezing.

Can I freeze corn-on-the cob?

Yes, it can be done, but with mixed results. Corn lovers are often disappointed with the mushy, rubbery texture and the cobby taste. It also takes up more space in the freezer. Want to give it a try? The National Center for Home Food Preservation has directions.


Revised by Suzanne Driessen 2016

  • © Regents of the University of Minnesota. All rights reserved.
  • The University of Minnesota is an equal opportunity educator and employer. Privacy