This spring I bought myself a great present – a freezer. Thanks self!! Therefore, I have been doing a lot of freezing preservation this summer in addition to my usual canning. I must say I am love love loving it! Freezing is very easy, and some things of course do much better being frozen. Can you imagine canned broccoli? Ick, that would be gross. Anyways, there is basically just one very simple step needed to prepare vegetables for freezing. Most vegetables need to be blanched before freezing to stop the action of enzymes that will cause the quality of food to degrade. Blanching helps preserve texture, nutrition, and flavour of vegetables. One of our lovely master food preservers tested the utility of blanching by doing a batch of broccoli both with and without blanching and it really matters! Without blanching the broccoli had a much stronger, less desirable flavour. So don’t skip it! Here’s how:
Step one is to harvest high quality veggies and process them as soon as possible. This year I actually had a successful broccoli crop – wooo! But by myself I am certainly not going to eat 5 heads at a time, so I froze a bunch.
Wash and trim your vegetables as you would plan to use them when you eat them.
Blanch vegetables in boiling water or in steam. PNW 214 is a great resource for looking up how long different vegetables need to be blanched. For broccoli it is three minutes in boiling water or five minutes in steam. I love my blanching pot for this. Bring the water to a boil, add veggies, and start the time when the water returns to a boil.
Cool vegetables under cold water for about the same amount of time as you blanched them.
Dry and freeze! That’s all there is to it. With many things it works best to first spread things out on a baking sheet and freeze them, then package them once they are frozen. For best quality, package things in airtight containers. Air causes freezer burn and food quality to degrade more rapidly. I just got a FoodSaver to go along with my freezer (and by that I mean it went on sale at Costco so I impulse bought it) and something like this really helps maintain quality. If you don’t have one just try and remove as much air from bags as you can. I admit that I’ve sucked air out of berry bags with my mouth… silly but actually fairly effective. Don’t say I never suggested more economical methods ;)
Have other questions about freezing? Ask me or check out the National Center’s FAQs here.
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