Skip to content
Free shipping on orders $60+ | Shop herbal tea, no caffeine" → Save
What No Microplastics Really Means for Your Tea Bags - Leaves of Leisure

What No Microplastics Really Means for Your Tea Bags

You are doing everything right. You skip the plastic water bottle, you bring your own bags, you read the labels. And then you steep a cup of tea to unwind, never imagining that the little bag itself might be the plastic problem. It caught me off guard too, and it is a big part of why our tea bags are made the way they are.

Let us talk about what no microplastics really means, what most tea bags are actually made of, and how to steep with a little more peace of mind.

Wait, tea bags contain plastic?

Many do, yes, and it surprises almost everyone. A lot of conventional tea bags, especially the silky, mesh, pyramid shaped ones, are made partly or entirely from plastics like nylon, PET, or polypropylene. Even some paper looking bags are sealed shut with a thin plastic layer so the edges hold together in hot water.

The trouble is heat. When plastic meets near boiling water, it begins to break down and shed tiny particles. A widely cited study from McGill University found that a single plastic tea bag steeped in hot water can release billions of microscopic plastic particles into one cup. Billions, in the thing you are drinking to relax. Researchers are still learning about the long term effects, but for most of us the simplest response is easy. Why drink them if we do not have to.

What plastic free should actually mean

Here is where I want to be straight with you, because the label world is messier than it looks. Plastic free and eco friendly can mean almost anything, so the smartest thing you can do is look past the buzzwords and check for real, independent proof.

When you are shopping, the things worth looking for are:

  • Bags made from genuinely plant based materials rather than petroleum plastics.
  • A real, third party certification such as BPI, not just a green leaf on the box.
  • Clear, specific language about what the bag is actually made of.
  • Unbleached, natural fibers.

What our tea bags are made of

Our tea bags are made from BPI-certified corn mesh. In plain language, that means the bag is made from a plant based material derived from corn, and it has been independently certified by the Biodegradable Products Institute, the most recognized composting certification in North America. It is fully compostable, it breaks down naturally, and it contains zero microplastics. None of the nylon, PET, or polypropylene that conventional bags shed into your hot water.

So what does BPI-certified actually mean? It means a third party, not us, has tested and verified that the material genuinely breaks down into compost and does not leave plastic behind. Anyone can print the word natural on a box. BPI certification is the receipt that backs it up.

Small ways to steep more mindfully

  • Check what your favorite brands use. If they will not say, that tells you something.
  • Look for a real certification like BPI rather than vague eco language.
  • Let just boiled water rest for a moment before pouring. A slightly gentler steep is kinder to everything.
  • Compost your bags when the material allows it, and keep loose leaf and a stainless steel infuser on hand for variety.

Frequently asked questions

Do all tea bags have microplastics? No. The main culprits are bags made from nylon, PET, or polypropylene, often the silky mesh pyramids. Bags made from certified plant based materials, like our BPI-certified corn mesh, avoid those petroleum plastics entirely.

How do I know if my tea bag is plastic? Look at the packaging language. If a brand is proud of its materials, it will say exactly what the bag is made of and show a real certification. Vague wording, or a plastic feeling mesh, are both worth a second look.

What does BPI-certified mean? BPI is the Biodegradable Products Institute, a respected third party that tests and certifies whether a material is genuinely compostable. A BPI certification means the bag has been independently verified to break down into compost rather than leaving plastic behind.

Are your tea bags really free of microplastics? Yes. Our bags are BPI-certified corn mesh, a plant based material that contains zero microplastics and is fully compostable, unlike the nylon and PET mesh that sheds particles into hot water.

The bottom line

You should not need a science degree to enjoy a cup of tea. Choosing a bag made from certified, plant based corn mesh over petroleum plastic is a small, powerful way to care for yourself and the planet at the same time. It is the choice we made for you, and it is one I feel good about every single day.

Come see how we do things, and find your new favorite blend in our tea shop.

Previous Post Next Post