Vegetable Freezing Autumn Harvest

Vegetable Freezing

Autumn is here and for many people its harvest time and as Autumn gets into full swing there lots of vegetables to be saved. 

Successful freezing depends on how quickly you can reduce the temperature of the food. Slow freezing may not make the food inedible but will affect flavour and, more importantly, nutritional value. Fast freezing halts bacterial growth instantly and produces very small ice crystals, which causes less damage to the cell structure of the food.
Before you commence preparing food for freezing you should turn your freezer on to its super or fast setting – preferably 3 hours or so before. This just keeps the motor running and drops the temperature as low as possible. When the food goes into the freezer it will cause the temperature to rise as the food cools. The super setting ensures the food already there remains at optimum temperature and the food being frozen cools as quickly as possible.


Do not try to freeze too much in one go – never more than 10% of the freezer capacity at a time.Also, the colder the food when it goes into the freezer, the less work the freezer has to do.

Vegetable Freezing Outline
Blanching time is in boiling water. Unless otherwise noted, chilling time in ice water should be the same as blanching time.
Vegetable	Preparation	Blanching Time/ Chilling Time
Asparagus	Wash and sort stalks according to size, discarding blemished stalks. Break off ends. Stalks may be left whole or cut into 30-50mm long pieces.	average diameter stalks - 3 minutes thicker stalks - 4 minutes.
Green Beans	Snap off tips. Rinse, then cut or break into desired sizes or freeze smaller beans whole.	3-1/2 minutes.
Italian Snap Beans	Wash, snap off ends and slice into 1" to 1-1/2" pieces.	3-1/2 minutes.
Beets	For young, tender beets- Remove tops and cook until tender. Chill, then remove skins. Leave small beets whole. For medium to large beets, slice or cut into pieces. Pack into freezer boxes or bags.	not applicable
Broccoli	Remove leaves and tough ends. Cut through stalks lengthwise, leaving stems with 1" to 1-1/2" diameter heads, or cut into pieces. Soak in salt water (2 tablespoons salt to 1 quart water) to remove any insects and larvae. Rinse with tap water and drain.	pieces - 4 minutes stems - 5 minutes.
Brussels Sprouts	Wash and trim any tough outer leaves. Soak in salt water (2 tablespoons salt to 1 quart water) to remove any insects and larvae. Rinse with tap water and drain.	medium sprouts - 4 minutes large sprouts - 5 minutes.
Carrots	Remove tops, peel, and wash. Cut into 1/4" thick slices.	3-1/2 minutes.
Cauliflower	Remove leaves, trim and wash. Split into individual 1" to 1-1/2" pieces. Soak in salt water (2 tablespoons salt to 1 quart water) to remove any insects and larvae. Rinse with tap water and drain.	4 minutes.
Corn-on-the-Cob	Husk, remove silk and trim off ends. Blanch in a large stockpot with 10 - 12 quarts of boiling water.	24 small ears, under 1-1/4" diameter - 8 minutes 14 medium ears, 1-1/4" to 1-1/2" diameter - 8 minutes 10 large ears, over 1-1/2" diameter - 11 minutes Chilling time in ice water should be twice as long as blanching time
Corn - Cut from cob	Husk, remove silk and trim off ends. Use a corn cob cutter or a curved grapefruit knife to remove kernels from cob.	4-1/2 minutes
Kohlrabi	Remove tops, wash, peel and cut into 1/2" cubes.	2-1/2 minutes.
Mushrooms	Wash and remove stems. Freeze smaller mushrooms whole Cut medium and large mushrooms into 1/4" slices. To prevent browning, add 1 tablespoon lemon juice or 1/2 teaspoon ascorbic acid per quart of blanching water.	small whole mushrooms - 4 minutes sliced mushrooms - 3 minutes.
Onions	Chopped onions can be packed and frozen without blanching To freeze larger pieces of onions or small whole onions - Peel onions, wash, and cut into quarter sections (except very small whole onions).	1-1/2 minutes
Green Peas, shelled	Wash and shell peas.	1-1/2 to 2 minutes
Sugar Peas or Edible Pod Peas	Wash; Remove stems and blossom ends; Leave whole.	2-1/2 to 3 minutes
Peppers	Chopped bell peppers can be packed and frozen without blanching. For pepper halves or slices...Wash, remove stem and seeds. Cut in halves or slices	halves - 3 minutes slices - 2 minutes.
Pumpkin	Cut; scoop out seeds; peel; and cut into pieces. Bake or steam until tender. Cool, then strain in a ricer, food mill or process in a food processor until smooth. Pack into containers and freeze.	not applicable
Spinach	Sort; remove any blemished leaves and tough stems; Wash.	1-1/2 to 2 minutes
Zucchini	Select 5" to 7" long, tender zucchini. Wash, peel and cut into 1/4" to 1/2" slices.	1/4" slices - 3 minutes 1/2" slices - 4 minutes

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