Tupperware still smells

[happytodayhappytomorrow]

DS took
Food to work in a Tupperware and then left the used Tupperware in his car for ages
We’ve soaked it, scrubbed it and put it in the dishwasher but it still smells a little.

Is there anything else we can do with it to make it super clean and reusable or shall I have to bin it?

Soaking in white vinegar for a few hours is supposed to help I think.
Once you wash it it won’t smell of vinegar.

Bleach?
Fill it with bleach & water right to the top and put the lid on. Leave it in the bottom of the sink for a couple of days, turning it over & leaving to soak upside down occasionally so the lid gets a soaking too, then rinse & dishwasher again.
If that doesn’t cure it, bin it.

Bicarb and boiling water, leave to soak

Milton

Thank you all
Bicarb was the closest to hand so I’m trying that first.