General Question

flo's avatar

What food item or items should we not store in a plastic peanut butter jar, for example?

Asked by flo (13313points) April 7th, 2015

I suppose this is for a chemist or chemistry buff. We’re not supposed to heat/cook food in containers that don’t indicate it. That is common knowledge, but how about storing peeled potatoes in them? Is it common knowledge that one shouldn’t store (in fridge or out) peeled potatoes in a peanut butter jar, for example?

What is supposed to happen if one does do that?
What other food items does it apply to and why?

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10 Answers

talljasperman's avatar

Peanut butter. It goes south too fast. Also mayo.

dxs's avatar

I’m not educated on the toxicity of plastic containers, but I’ve been reusing them as water bottles for years and I haven’t died yet. You may want to look into studies about this.

flo's avatar

@dxs It is just oxidation that causes the black color Edited: (same with bananas and apples). I just read. I guess it is not toxic.

jaytkay's avatar

We have a prominent Fluther member who has a plastics company, and he said in general (THIS IS NOT SCIENTIFIC) that transparent plastics are safer than translucent plastics.

So the peanut butter jar is safer than a milk jug. But glass is best.

Me personally, I use glass at home in the fridge. I carry my lunch to work in a hard clear plastic container like this.

flo's avatar

Thank you all. So, I’m reading this:
“In this case, the product is not unsafe; it just looks less appealing.”
In other cases it can/is unsafe, I guess. But which cases?

jaytkay's avatar

If it smells bad, throw it away. If you don’t want to eat it, throw it away.

Two things that I eat the look kinda bad are bananas and cheese.

When bananas are too ripe to eat, make smoothies or banana bread or freeze them to use later.

Cut the mold off cheese and I’m happy to eat the rest.

Response moderated (Unhelpful)
ibstubro's avatar

You can keep your peeled potatoes from turning dark by adding a little lemon juice to the water they’re stored in.
If the potatoes turn dark, there’s no health hazard in eating them.

flo's avatar

@talljasperman ?
@dxs and @jaytkay and @ibstubro Thanks. In the case of the meat it isn’t unsafe. When is it oxidation related unsafe?

Response moderated (Spam)

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