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Freezing Mushrooms


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Freezing Mushrooms



Mushrooms

Preparation - Choose mushrooms free from spots and decay. Sort according to size. Wash thoroughly in cold water. Trim off ends of stems. If mushrooms are larger than 1 inch across, slice them or cut them into quarters.

Mushrooms can be steamed or heated in fat in a fry pan. Steamed mushrooms will keep longer than those heated in fat.

To Steam - Mushrooms to be steamed have better color if given anti-darkening treatment first. To do this, dip for 5 minutes in a solution containing 1 teaspoon lemon juice or 1-1/2 teaspoons citric acid to a pint of water.

Then steam whole mushrooms 5 minutes, buttons or quarters 3-1/2 minutes and slices 3 minutes. Cool promptly, drain and package, leaving 1/2-inch headspace. Seal and freeze.

To Heat in Fry Pan - Heat small quantities of mushrooms in margarine or butter in an open fry pan until almost done.

Cool in air or set pan in which mushrooms were cooked in cold water. Pack into containers, leaving 1/2-inch headspace. Seal and freeze.

Headspace to Allow Between Packed Food and Closure


Type of Pack Container with
wide top opening
Container with
narrow top opening
Pint Quart Pint Quart
Liquid Pack* 1/2 inch 1 inch 3/4 inch 1-1/2 inch
Dry Pack** 1/2 inch 1/2 inch 1/2 inch 1/2 inch
Juices 1/2 inch 1 inch 1-1/2 inch 1-1/2 inch

*Fruit packed in juice, sugar, syrup or water; crushed or pureed fruit.

**Fruit or vegetable packed without added sugar or liquid.




General Information on Freezing * Blanching Vegetables * Apples * Apricots * Artichokes * Asparagus * Avocados * Bacon * Bananas * Beans: Green, Snap, or Wax *

Beans: Lima * Beans: Butter or Pinto * Beets * Blackberries or Dewberries * Blueberries or Huckleberries * Broccoli * Brussels Sprouts * Butter * Cabbage or Chinese Cabbage * Carrots * Cauliflower * Celery * Cheese *

Cherries: Sour * Cherries: Sweet * Citrus Fruits * Clams * Crab * Fresh Coconut * Corn * Cranberries * Currants * Dates * Eggplant *

Eggs * Figs * Fish * Gooseberries * Grapes * Grapes: Muscadine * Greens (including Spinach) * Garlic in Oil * Guavas * Fresh Herbs *

Ice Cream * Kohlrabi * Lemon Curd, Freezer * Lobster * Loquats * Mayhaw Juice * Meats * Mangos * Melons * Mushrooms * Okra *

Onions * Oysters * Edible Pea Pods * Blackeye or Field Peas * Green Peas * Peaches or Nectarines * Pears * Bell or Sweet Peppers * Hot Peppers * Persimmons * Pesto * Pimentos *

Pineapples * Poultry and Game Birds * Plums * Pomegranates * Prepared Foods * New Irish Potatoes * Sweet Potatoes * Pumpkin * Raspberries * Rhubarb * Rutabagas *

Scallops * Shrimp * Sour Cream * Spinach * Chayote Squash * Summer Squash * Winter Squash * Strawberries * Tomatoes *

Green Tomatoes * Turnips or Parsnips * Whipped Cream * Zucchini

These documents were adapted from the "Complete Guide to Home Canning," Agriculture Information Bulletin No. 539, USDA, revised 2009 &
From "So Easy to Preserve", 5th ed. 2006. Bulletin 989, Cooperative Extension Service, The University of Georgia, Athens. Revised by Elizabeth L. Andress. Ph.D. and Judy A. Harrison, Ph.D., Extension Foods Specialists.