By Henri from Wagga Wagga, Australia
The best way I have found and it works is to store it in a water sprinkled kitchen towel wrapped around it in the veggie drawer. Last for days. Green a crispy!
I concur with Michawnpita! If what you're talking about is leeching from different plastics then check out this link:
I have heard of no such thing. I do know that you can't store lettuce in plastic that long anyway, or it gets yucky! I would think that anything that would grow would be long after a good eatable lettuce survived anyway!
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