Thursday, February 23

Vegetables - can you freeze them?

I receive lots of questions about freezing vegetables so thought I'd share some tips with you all.  Yes, you can freeze most vegetables but you need to blanch them first.  Here's the basics for blanching and freezing:

  • Use very fresh vegetables, don't bother freezing old almost-gone vegies
  • Trim/peel/cut the vegetables as required then blanch them in a large pot of boiling water for 1-2 minutes
  • Drain them in a colander then plunge them in icy cold water to cool them quickly
  • Drain again then dry the vegetables well using clean tea towels or paper towels
  • Store the vegetables in freezer bags or ziplock bags in convenient-sized portions, then freeze
  • After freezing: you don't need to defrost the vegetables.  Simply cook them from frozen by placing them in a pot of boiling water and cook till done.  Or if the vegetables are for a stir-fry: you can cook from frozen in the wok and stir fry till hot




You can apply this technique lots of different vegetables such as:

asparagus
beans (green, yellow, flat beans)
broccoli
brussel sprouts
capscicums (bell peppers)
carrots 
cauliflower
celeriac
corn (on the cob or cut corn)
leeks
onions
peas
baby potatoes
pumpkin
snow peas (mangetout)
sugar snap peas
squash
sweet potatoes (kumera)
zucchini (courgettes)


They can be stored in the freezer for approx 12 months if your freezer is operating at -18 degrees Celsius (0 degrees Fahrenheit). 

Hope that helps!

Susan
x






7 comments:

  1. I've always wondered why do you blanch them first.

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    1. Hi Anon

      I'm not a food scientist so I looked online for the best explanation and found this:
      "Blanching the vegetables before freezing impedes enzyme action during storage time in the freezer and this means that the deterioration of the vegetable is kept at a minimum and that vegetables will emerge from the freezer in the same condition as they entered."

      For more info on blanching vegetables (and the source of my quote above) go to:
      http://www.helpwithcooking.com/food-storage/freezing-vegetables.html

      Hope that helps.
      Susan
      x

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  2. Thank you! I have been thinking about blanching, or not, of greens like silver beet, kale etc for use in smoothies.

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  3. Hi,
    If I was to precut my onions and then freeze them for cooking later on. WOuld I need to blanch them or would it be ok without?
    Seems like a lot of extra effort.
    Thank you for your website, just found it and loving it!

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    Replies
    1. Hi Mara.

      Glad you found my website and like it!

      You can freeze uncooked, chopped onions but they'll be quite mushy when you defrost.

      I'd suggest you chop/slice them then cook in some olive oil (just like the first step to most recipes) then allow to cool then freeze - they should freeze pretty well. Make sure you store them in usable-size portions so that you can defrost the right amount when you need it.

      And you can freeze caramelised onions too.

      Susan x

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  4. Hi I was wondering a lot of bulk freezer receipes blogs (particarly from the USA) seem to freeze the cut vegies, with meat & sauce all uncooked in the one ziplock bag and then freeze, I was alwasy wondering if this is a safe method for food to be frozen for less than a month??

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    Replies
    1. Hi Michelle

      Firstly, sorry for my slow reply.

      To answer your question: it would be safe for the food as food can be frozen for any length of time and be safe to eat if the freezer is working at normal temperature (-18 degrees Celsius) but if you leave food in the freezer for a long time then the properties of the food will start to suffer (flavour, texture, nutrition, colour etc).

      I've seen those pictures of ziplock bags and have wondered what they're like. Normally vegetable should be blanched before freezing but the pictures seem to show regular fresh vegies. I've never tried this kind of approach as most recipes have several steps (eg, brown the meat, add some spices etc) and dumping a ton of ingredients in a slowcooker isn't quite the same. Meat should be browned because it seals the meat and adds lots of flavour to the recipe.

      If you ever try out this kind of freezer cooking please let me know how it goes.

      thanks
      Susan x

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