I use automatic dishwashing powder. You can get this at any Dollar General or Walmart Store. You don't need to buy the expensive brands. Just pour a little in your container, fill it with hot water and let it soak. Stains come right off.
I just wash mine well and ignore the tint, then when I use them for something else the pink has faded and then it's gone. Mostly for containers I use pint wide-mouth canning jars, they last forever, they're see-thru, easy to wash and no staining at all.
I have luck putting the stained plastic containers out in the bright sun. They come out like new. This truly is a very frugal procedure. I hope it works for you.
I agree with the Plastic Booster. It comes in a tube like hand lotion, look for it with the dishwasher detergents. You add it with your regular detergent. I was skeptical when I first tried it but it really works!
You can also set them out in the sunshine if you live where the weather is nice.
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Request: Removing Stains from Plastic Food Containers
Archived on 02/04/2009
How do I remove stains from plastic food containers?
Renee from Monterey, TN
Answers:
RE: Removing Stains from Plastic Food Containers
Try soaking the plastic food containers in some bleach and hot water. (12/14/2007)
I'm not sure in how to get them clean, but if you simply spray the insides of the container with Pam before putting anything in them they will not stain. All you need is a light coat. I always found mine being stained with spaghetti sauce and chili. Hope this helps. (12/15/2007)
By Terre
RE: Removing Stains from Plastic Food Containers
The only thing that has ever worked for me is Cascade Plastic Booster. (12/18/2007)