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Refrigeration to reduce bitterness

Posted by Slimy_Okra 2b (My Page) on
Mon, May 19, 14 at 13:18

I have seen advice to reduce the bitterness of summer lettuce by refrigerating it for 48 hours. I have tried it out and find that it works, at least to some degree.

Does this work for other greens, such as spinach and kale? Has anyone noticed a difference before and after refrigeration?


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RE: Refrigeration to reduce bitterness

  • Posted by digdirt 6b-7a North AR (My Page) on
    Mon, May 19, 14 at 19:56

I guess I have never noticed any difference as all leafy greens I grow go right into the fridge after harvesting and washing. We eat them only after refrigeration, not before, as warm lettuce, kale, spinach has little appeal.

Dave


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RE: Refrigeration to reduce bitterness

Hmmm...I should probably conduct an experiment!


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RE: Refrigeration to reduce bitterness

It definitely works for me for lettuce,and for spinach, too. Never tried it with kale. But a trick someone on GW shared with me last year, for bitter chard, was to boil it for 1 minute and dump the water. I wonder if that would work for bitter kale?

But hey -- my kale never goes bitter (cool summers here) and you're in a cool climate, too. Maybe no need?


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RE: Refrigeration to reduce bitterness

That's funny - my chard never goes bitter no matter how hot it is, but kale is pretty much inedible between June and September. I grow different types - lacinato, Red Russian and others, and I can't stand their taste until a few frosts have occurred.


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RE: Refrigeration to reduce bitterness

That IS really interesting.
Must be a soil issue. Or maybe a nationality issue?


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RE: Refrigeration to reduce bitterness

Chard sweetens up in the fall when it gets colder. I am reading Eating on the Wild Side which is about plant history and which veggies have most phytonutrients. There is some information about how temperature and time effect plants because of chemical changes. Asparagus starts to lose its sweetness about 4 hours after picking. I don't recall what the book might have said about lettuce. I tend to have bitter lettuce. Trying to grow varieties at the right time. Some are better in cooler weather others do better in hot. Right now, my spinach tastes sweet to me but it's been growing in a high tunnel and starting to bolt (I'm in NH) so need to eat the rest of it soon.


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