đŸ„Ș Is Your Plastic Lunch Box Safe for You and Your Children?

Mar 26, 2025Mikkel Petersen

Lunch boxes are part of everyday life. But what if the one you use every day isn't quite as safe as you think? Many plastic lunch boxes can release invisible substances – which can end up in your food and in your body. In this blog post, we take a closer look at what to watch out for, and why stainless steel is a healthier and more responsible choice.

đŸ§Ș What's lurking in plastic?

Plastic lunch boxes can contain and release chemicals such as BPA (bisphenol A) and phthalates, especially when exposed to heat – for example in the dishwasher, microwave, or when left in the sun. Even BPA-free plastic is often replaced with similar substances whose effects aren't always well documented.

Even more concerning is the risk that microplastics – tiny plastic particles – can break off and end up in your food. These particles can potentially affect both the hormonal system and digestion over time.

đŸ˜· Odours and hard-to-clean surfaces

If you've ever opened an old plastic lunch box and been hit by a strange smell – you know the problem. Plastic tends to absorb both odours and colour from food, and scratches in the surface make it hard to keep truly clean. Even after a run through the dishwasher, they rarely feel completely fresh.

đŸ‘¶ What does this mean for children?

Children are particularly vulnerable to hormone-disrupting substances. That's why several experts and authorities recommend limiting the use of plastic containers for storing food and drink – especially for children. This is particularly relevant for products used again and again and exposed to heat.

The same goes for plates. Stainless steel children's plates are a steel alternative to plastic plates for everyday use, free from BPA and phthalates.

🌿 A better alternative: stainless steel lunch boxes

At Yummii Yummii, we've chosen a different path. We design stainless steel lunch boxes that are:

  • Made from stainless steel – free from BPA and phthalates
  • Easy to clean – including in the dishwasher
  • Keep food fresh with no odours or taste transfer
  • Built to last for years – and reusable
  • Timeless in design and perfect for both children and adults

🧡 Peace of mind in every packed lunch

We believe a packed lunch should be a safe space. A little break in the day where you can enjoy your food – without worrying about invisible chemicals or unpleasant smells from the box.

The same goes for what your child drinks from. A glass drinks bottle is made from a material that releases neither BPA nor plastic particles into liquids. If you'd like to wrap up the packed lunch, beeswax wraps are a reusable alternative to cling film and foil. And if you prefer glass over steel, we also stock glass lunch boxes.

📩 Ready to make the switch?

If you're thinking about upgrading your packed lunch routine, take a look at our range of stainless steel bento boxes. It's a small change that makes a big difference – for you, your children, and the planet.

Shop the range here



More articles