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OK, so we shouldn't refreeze meat once it's been defrosted.

But if I've partially defrosted meat, then popped it back in the freezer, is that safe? Specifically I'm thinking of sausages or steaks or chops, which may be frozen in groups. You might want to pull them out of the freezer for 30 mins to 1 hr, so they thaw just enough to loosen up to separate them, then put half back. Is this safe?

My question is ... is there a clean cut off point with defrosting after which it becomes unsafe to refreeze, or does it just get progressively more dangerous?

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2 Answers 2

up vote 6 down vote accepted

If you're unthawing them in your refrigerator (below 40 F), then you should be just fine. Most beasties don't reproduce at any significant rate below 40 F.

There isn't a clean cut off point because it depends entirely on the existing level of contamination present in your meat.

You should be aware that repeated cycles of thaw/freeze will really damage the texture of your meat. The cells simply do not hold up to that.

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While this doesn't directly answer your question, I wanted to jump in with a way to avoid this altogether. When you get home from the market, separate and portion your meats so they can be frozen individually. Wrap each with either freezer paper, or plastic wrap and aluminum foil. Then they're able to all be stored in one bag, but can be pulled out individually.

You can also freeze them on a cookie sheet, one layer deep, and then as soon as they're fully frozen package them together without wrapping (though you will lose the beneficial protection from moisture that wrapping provides). This is also how I freeze fruit so I can grab a handful of frozen blueberries or one peeled banana without having to defrost the entire bag.

As for safety, I defer to hobodave's excellent answer.

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@stephenmcdonald - I do this and it is great. –  justkt Aug 31 '10 at 0:30
    
yep, but ... grrrrrrr ... spouse has been known to forget this tip –  Tea Drinker Oct 22 '10 at 0:28
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