Like when people are worried about the microplastics in toothpaste, but not the plastic tube it comes in. Isn’t that tube going to break down into way more microplastics than the toothpaste itself contains?
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The tube is more or less stable while it’s in use. Plastics usually deteriorate and degrade into microplastics after being exposed to the elements for some time, like lying around in a landfill or floating in the ocean. Those microplastics then enter the food chain and work their way up into our bodies through food.
>Isn’t that tube going to break down into way more microplastics than the toothpaste itself contains?
Not in a meaningful amount while you’re still brushing.
When you throw the empty tube in the forest or the next river instead of properly disposing it, it WILL turn to microplastic after some years, but hey at least not inside your mouth.
Where I live we have recycling bins that will mostly end up being burned to generate heating or electricity.
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