Freezing Basics For Vegetables
Jun 6th, 2011 | By Esther | Category: Food, Storage | Print This Article
Freezing our bountiful harvest is an easy way of preserving our produce, but the foods will not keep as long. In freezing the organisms that cause spoilage become inactive. However, they don’t die. The bacteria can’t grow as long as the produce remains frozen, but once it is thawed, they will begin growing once again.
You should be aware of some changes in your vegetables before you start freezing. Foods may become mushy when thawed because ice crystals cause damage in the cells of the foods. If you keep foods frozen for too long or if they are frozen in improper containers, it will cause freezer burn. This will cause the color and taste of the foods to be changed for the worse. Such food is still safe to eat in this condition, but it is not be as appealing.
Freezing is a simple process, and not much equipment is required to get started – just your household freezer and containers. The easiest containers are common freezer bags found in your local supermarket. You can also freeze in your canning jars, plastic containers (such as butter or cottage containers), aluminum foil, plastic wrap, and freezer paper. You will need to allow for the food to expand as it freezes, so be sure to leave plenty of space for this process. Not leaving this room for expansion will cause your containers to leak in your freezer and make an icy mess to clean up later.
Freezing Veggies

Freezing Vegetables is much like freezing fruits, only you won’t be adding sugar. Instead you will be blanching them (heating in boiling water for 2 to 3 minutes and then immediately cooling in cold water) before packing into containers and freezing. Blanching kills the enzymes that age vegetables. Blanched foods will taste fresher when taken from the freezer. Submerging in cold water stops the cooking process.
You will need to leave a headspace on some of your vegetables.
Some vegetables darken after they are cut, and to prevent this darkening you will need to use an anti-darkening agent. A natural anti-darkening solution that can be used is a teaspoon of lemon juice to a quart of water. Soaking your veggies for five to ten minutes prior to placing them in the containers for freezing will prevent this. You can also use commercial anti-darkening, such as “Fruit Fresh” by following the instructions on the package. Using either will work with great results.
Veggie Freezing Instructions
- Asparagus: wash and cut off tough stems. Blanch small stalks 2 minutes, large ones for 4 minutes. Cool, drain, and pack into containers, alternating tip and stem ends. No headspace needed.
- Beans, Green and Wax: pick when young and tender (beans with strings are too tough). Remove stems and break into 1-2 inch pieces. Wash. Blanch 3 minutes, dip into cold water to cool. Drain, pack, and freeze. Leave ½ inch headspace.
- Beets: When trimming beets leave 1 inch of their tops to prevent them from bleeding. Not leaving the stems will cause them to bleed out and turn white during cooking. Wash beets and cook for 25 minutes. Cool in cold water. Rub off peels when cool—skins should slip off easily now. Cut into cubes or slices, pack into containers, leave ½ inch headspace, and freeze.
- Broccoli: Wash and peel stalks. To remove insects, soak in a solution of 4-5 teaspoons salt to a gallon of water for half an hour. Blanch three minutes, cool in cold water, drain, pack into containers leaving no headspace, and freeze.
- Brussels Sprouts: Trim and remove outer leaves. Wash and blanch 3 minutes for small heads, 5 minutes for large heads. Cool in cold water, drain, pack into containers leaving no headspace, freeze.
- Cabbage: Remove outer leaves and cut into quartets. Wash. Blanch for 2 minutes. Cool in cold water, drain and pack into containers leaving ½ inch headspace. Once frozen cabbage is only suitable for use as a cooked vegetable, not for coleslaw.
- Carrots: Remove tops, wash, and peel if desired. Leave small carrots whole; slice large ones. Blanch whole carrots 5 minutes, sliced carrots 2 minutes. Cool in cold water and drain. Pack into containers leaving ½ inch headspace, freeze.
- Cauliflower: Break into 1 inch pieces and wash. To remove insects soak in a solution of 4-5 teaspoons salt to a gallon of water for half an hour. Drain and rinse. Blanch three minutes and cool in cold water. Pack into containers leaving no headspace, freeze.
- Corn: Husk and remove silk from ears. Blanch ears five minutes. Cool in cold water and drain. Cut kernels from cob and cover with water, pack into containers leaving 1-inch headspace.
- Corn-on-the-cob: Husk and remove silk from ears. Blanch ears five minutes. Cool in cold water and drain. Wrap each ear in plastic wrap, pack into freezer bags and freeze.
- Mushrooms: wash in cold water. To remove insects soak in a solution of 4-5 teaspoons salt to a gallon of water for several hours or overnight. Rinse well. If mushrooms are larger than 1-inch, slice or quarter them. Soak mushrooms in anti-darkening solution for 5 minutes, drain. Steam for 5 minutes, cool in cold water and pack into containers leaving ½ inch headspace, freeze.
- Okra: Pick young, tender pods. Wash and cut off stem ends, being careful not to open seed cells. Blanch for 4 minutes, cooling promptly in cold water. Leave whole or slice, pack into containers leaving ½ inch headspace, freeze.
- Onions: Wash and peel. Chop and place into containers, leaving NO headspace.
- Peas: Shell peas and wash to remove blossom ends and pod particles. Blanch 2 minutes, cool in cold water. Drain, pack peas into containers leaving ½ inch headspace, freeze.
- Pea pods: Wash. Blanch for 2 minutes. Pack into containers and freeze.
- Peppers: Wash, cut out seeds and chop. Pack into containers leaving no headspace, freeze.
- Pumpkin: Wash and cut into quarters. Cook until soft by baking, steaming or boiling. Press through sieve. Cool, pack into containers leaving ½ inch headspace, freeze.
- Sweet Potatoes: Wash and cook until almost tender. Cool in cold water and peel. Slice, mash, or leave whole. To prevent darkening dip in anti-darkening solution for 5 seconds. If mashed, add 2T lemon juice to each quart of sweet potatoes. Pack into containers leaving ½ inch headspace, and freeze.
- Tomatoes: Wash, remove stems and blanch 3-4 minutes*. Cool in cold water and remove skins. Can quarter, halve, or leave whole. Pack into containers leaving ½ inch headspace and freeze.
- Stewed tomatoes: Wash, remove stems and blanch 3-4 minutes*. Cool in cold water and remove skins. Quarter and cook about 20 minutes or until tender. Place pan into cold water to cool, pack into containers leaving ½ inch headspace and freeze.
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great info. needed as well is drying technique.
She is way off with the blanching instructions for Asparagus. Go to http://www.kruppfarms.com Have two pots boiling water, stalks cut or not in bottom of colander, dip in pot one 10 seconds, pot two 10 seconds-out- shake a bit, put into Food Saver Freezer bags, vacuum out all air, seal and freeze a year. Or, try it without blanching at all! I just froze 10 pounds, un-blanched, and dried 10 pounds in Excalibur Food Dehydrator. 10 pounds fresh became about 12 ounces dry. In Food Saver bags, they store anywhere- forever! Freezers require electricity. Unless you are all solar, and really feel secure it will always be available, I would go with dried food storage. She may be off on the other advice as well. I would look at individual web sites from the producers of each food item.
Can you email me ar diamondwizard@gmail.com for more of your drying experiences?
I totally agree with you on your comments on the freezing article. I also have an Excaliber which I love. When our okra comes in, we dehydrate just about 24-7. The only problem with dehydrated okra is that it is so yummy! Now, we salt it a little prior to dehydrating, call it “Hillbilly Popcorn”, and snack on it instead of popcorn quite often while watching TV. My faithful old dehydrator has also made GOBS of fruit leather for our grandkids; no cookies and candy in this house but they love coming here. We’re in the southern Appalachians. Thanks again for your commom sense reply to the freezing article!
great information.
Good information. I would appreciate detailed information on drying all kinds of vegetables, along with tips for preparing after dried. Also, what about drying meat? Freezers are great (I’ve been canning and freezing my produce for 35 years), but I have no alternative power source. If the grid goes down, I lose a lot of food.
whimsley, we have gardened, canned, and frozen for many years. With the current looming threat of the power grid going down, we have stored a few propane tanks and we also cook with propane. A few years ago we started gathering extra canning jars and always keep a lot of new lids on hand. If the power goes down we intend to start canning what we have in the freezer. Even the turkey-cooker burner will work for my largest pressure cooker in emergencies. Just a thought for the future! As for meat, I make jerky (venison) every year in season. I tried dehydrating some chicken but was not happy with it. I did do some small-cubed beef and I was very happy with it. However, we used it within 3 months. I have, for some months now, been looking for good lean ground beef on sale. When I find it I buy about 20 pounds and can it. I do believe that our nation is in great peril, and I am doing everything I know to do to be prepared for emergencies. Good luck in your quest for greater knowledge.
I heard that boiling vegetables causes all of the vitamins and minerals to drain off into the water, which then gets discarded. So why would I want to “blanch” them and cause them to lose their health benefits? Am I missing something?
You are correct about boiling, that it kills the enzymes. Any heat, even dehydrating over the intended temp. will kill the enzymes that are so beneficial. When I dehydrate, I boil my water, turn off the heat, and then blanche them for a few minutes…and then drink the sweet water. Most veggies have to be cooked below that threshold or you’re better off eating dirt. Most people are unaware. Knowledge is power. Be ready folks.
This also goes for stir-fry and heating veggies. When I stir-fry, I saute the onions and garlic first, then meat, and lastly, add my veggies on top at the lowest temp and steam until the veggies are slightly softer. Good day and good health.
I would like to point out that most of the developing cpountries using waste water with out tretment for growing
vegitables. some time the water coming from hospitals and un hygenic watre use and dangerious bactries .
i tried to conduct some experiments to treat polluted water ,and send vegitables sample to labotries .
I need simple /cheep technology and printed material .
thanking you for consideration and saving life of million childrens .
DR.JALAL QURESHI
iwses@live.com
ph 832-388-9260
Why waste the time freezing onions. I just dry on newspaper on the garage floor for a week, then tie them up with twine into bunches of 12 or so, then hang them on a nail in the garage. they last all winter here in southern Wisconsin. If frozen in winter, hang them up inside for a few hours and they thaw out . Only lose a few. In the spring I put them in the refrigerator, where they last until the new crop comes in. Some will sprout, but we cut out the center and use the rest. The ones without stems we lay on a shelf made of hardware cloth (1/4 inch square metal wire) found at the hardware store.
Thanks for all the helpful information. I have cucumbers, watermelon,and cantelope does anyone know if these can be frozen. We have had a garden for 3 years and are just learning how to freeze and can. Again thanks for all this helpful information. From Louisiana
Maybe freezing melons to use later for smoothies but not eaten in whole chunks..just run them thru a blender before freezing..havent done it myself but let us know if that works..
forgot to mention this..if blanching veggies or cooking them to eat by boiling I save the water and freeze it to use later for soup base..I’m keeping those vitamins..lol
I seem to recall the promotion of a certain type of freezer, good for the environment, for my food, and one that will work if the power goes out. Do you have information on such a freezer, and from where they are sold?
Thank you,
Dave
Has anyone frozen vegetables first putting them in boilable vac. sealed bags, blanching them, then freezing in the same bags?