1. Stop heating food in plastic
Warm plastic is softer plastic. Reheating a takeaway container, pouring hot soup into a plastic tub, or letting a plastic lid sit above steam all increase how much the material sheds. Move food to glass or ceramic before it gets hot — it costs nothing and removes the single largest daily source for most households.
2. Change how you store, not just what you buy
You cannot control how food arrives. You can control how long it sits in plastic in your fridge. Decanting into glass containers when you get home turns a week of contact into a few minutes of it.
3. Replace the things that scrape
Plastic chopping boards, plastic spatulas used in hot pans, and worn non-stick coatings all produce fragments through mechanical wear. Wood and stainless steel don't. This is the least discussed source and one of the easiest to fix permanently.
4. Don't forget the freezer
Freezer items are easy to overlook because nothing is hot. But plastic becomes brittle at low temperature, and anything you flex — bags, tubs, and especially plastic ice trays — is being stressed every time you use it. Ice ends up in a drink, undiluted and unfiltered.
What not to worry about
Microplastics are measurable almost everywhere, including in salt, seafood and dust. You will not reach zero, and chasing zero is a good way to make your kitchen worse rather than better. Focus on the daily, controllable sources and stop there.