I’ve found after a few uses and washes it all eventually comes out but that could be because I don’t always put the same thing in it after each use.

Generally, I think once it’s stained it’s there forever. I have read that spraying or wiping the container with oil helps to prevent it staining. But that won’t remove it

Gee, I read an article about this recently but can’t quite remember what it said. I know salt was involved … perhaps a Google question should get your answer. I usually wipe out the container with paper towel to remove all the sauce/product and then wash in hot soapy water.

Personally I don’t think you can. You can either accept that it’s discoloured (btw it doesn’t mean it’s dirty) or chuck it out and buy new.
I agree you can try baking soda & vinegar/lemon and you could also try to soak it in nappysan or steradent but do realise it will happen again and again.

Use baking powder plus lemon nd wash in dish washer on high temperature

Use viniger and lemon with salt

From my experience, it’s not possible. If you can’t stand the stains, chuck them out. Otherwise use as is

Their website and even facebook pages may also be able to give support and provide answers on stain removal – worth a go!

I soak and wash immediately and have not encountered this problem. A Tupperware consultant may be able to advise on stain removal?

I’ve had this problem with all my plastic items! Once it’s stained, it’s stained for good. Will try the ideas others have shared. Very good question!

Tupperware told me you cannot – bicarb and vinegar made into a paste and left on stains can lessen them, but the plastic is not easy to clean!

Probably best to store them in cheap plastic ones rather then Tupperware as they are too expensive to get stained . I was lucky to get some vintage ones from Vinnies/ Salvos last year so maybe look for one to use for your sauces only .

Yes! Bicarb and vinegar will get rid of the staining!

Seems many of us have the same problem. Its the only downside of tupperware, its too expensive to throw away when it gets stained!

What a great question and am loving the answers

Microwaving a cup full of water with a spoonful of soda bi carb in the container for 4 – 5 minutes takes a bulk of the stains away. However if the tomato sauce has corroded the plastic there’s not much to be done with the pitting on the sides.

This is a great question I had heard of the spraying with oil before you put the food in but I always remember that after the food has gone in. Will have to give the bicarb and Vinegar a go.

I believe that a light spray of olive oil BEFORE you use the tupperware should keep it stain free – but to be honest, I’ve never had the time to fuss around and test this tip.

I have the same problem, even the smells seem to never comes out!

I spray with some oil before putting the food in to create a barrier