Is it safe to buy conventional dairy products in plastic packaging?

What's actually in it

Cows are exposed to microplastics from plastic-wrapped silage, feed storage bags, and silo liners. The particles pass through into milk and the products made from it. Then the milk, cream, yogurt, and cheese sit in plastic cartons, tubs, and shrink-wrap for days or weeks. The fat in dairy products is an efficient solvent, pulling chemicals out of the packaging.

A single serving of yogurt or slice of cheese is a small dose. A family eating dairy two or three times a day, across a lifetime, moves the total exposure into a real range.

What the research says

A 2026 review in Curr Res Food Sci traced microplastic contamination in the meat and dairy supply chain from farm to table. Microplastics showed up at every stage: farm inputs, processing equipment, packaging, and retail storage. Yogurt cups, cream containers, and shrink-wrapped cheese were high-contact packaging points.

For yogurt, a glass-jarred brand (Brown Cow's glass line, local dairies, homemade) skips the plastic tub. For cheese, cheese from the deli counter wrapped in paper picks up less than shrink-wrapped pre-cut packs. Whole milk in a glass bottle (milk-delivery services, some farmers' markets) avoids the plastic jug. For a family that can't swap everything, focusing glass on the dairy products eaten most often (yogurt for kids, milk for coffee) moves the needle.