Microplastics—tiny plastic particles less than 5mm in size—are an increasing concern, now found in the air we breathe, the water we drink, and even within our bodies. Reducing our exposure, where possible—through mindful choices about how we prepare food, eat, drink, and use everyday products—is an important step in protecting both our health and the environment.

Microplastics and our health

Microplastics have been detected in human tissues, including the lungs, liver, and bloodstream, confirming their ability to enter and move through the body. While research into their long-term health effects is ongoing, early studies suggest potential risks. Prolonged exposure has been linked to metabolic disruptions, neurotoxicity, and possible impacts on cardiovascular health. Microplastics may also contribute to oxidative stress—damaging cells—and trigger inflammation, which could overstimulate or suppress certain immune responses. Additionally, some studies indicate that these particles may carry environmental pollutants or alter gut microbiota, though further research is needed to fully understand their impact.

Microplastics and environmental impacts

Microplastics are widespread in the environment, affecting ecosystems, wildlife, and even climate patterns. They have been found in oceans, rivers, and remote polar regions, where marine life—including fish, seabirds, and plankton—often mistake them for food. This can interfere with feeding behaviour, energy levels, and reproduction.

In agriculture, microplastics are increasingly present in soil due to plastic mulch films, wastewater sludge, and airborne particles. Studies suggest they may alter soil composition and microbial activity, potentially impacting plant growth.

Microplastics are also present in the atmosphere, where they can travel long distances and be inhaled. Emerging research even explores their role in cloud formation and weather patterns, highlighting yet another way these particles may influence the planet.

Reducing microplastic exposure - things you can do today

Making simple, mindful swaps can help lower your exposure to microplastics while also supporting a healthier planet. Here’s how:

• Choose plastic-free tea – Such as loose leaf tea and biodegradable tea bags that are made from plant-based materials (all of our Tea Associates tea bags are plastic-free). Commercially produced tea bags contain plastic, which releases microplastics into your cup.
• Opt for biodegradable packaging – Look for products packaged in compostable or biodegradable materials instead of plastic to reduce waste. Tea Associates packages all of our loose leaf tea and tea bags in NatureFlex™ bags. These bags are made from a biodegradable and compostable cellophane film derived from renewable cellulose fibre. Certified biodegradable by Australian Standards AS 5810, NatureFlex™ bags can be composted at home, decomposing in approximately 15 weeks once exposed to the elements.
• Drink from glass or stainless steel – Swap plastic bottles and cups for reusable glass or stainless-steel alternatives to prevent plastic particles from shedding into your drinks.
• Avoid plastic food containers – Store food in glass, stainless steel, or silicone containers, as plastic can release microplastics over time, especially when heated.
• Replace your non-stick cookware – Many non-stick coatings contain plastic-based materials that degrade with heat. Switch to stainless steel, cast iron, or ceramic cookware for a safer alternative.
• Filter your water – Use a high-quality water filter to reduce microplastics in tap water.
• Eat fresh, whole foods – Processed and packaged foods often contain microplastics from plastic packaging and production processes. Choosing fresh, unwrapped produce helps minimise exposure.
• Support plastic-free brands – Choose businesses that prioritise sustainability, biodegradable materials, and plastic-free alternatives to help reduce microplastic pollution.

At an industry and policy level, scientists are developing new methods to break down plastics and filter microplastics from water sources, offering potential long-term solutions. Governments and organisations are working to reduce plastic pollution through bans on single-use plastics, improved recycling systems, and the development of biodegradable materials.

Our commitment to sustainability 

Sustainability is at the core of everything we do. We believe small, thoughtful choices—like choosing plastic-free tea and biodegradable packaging—can create a meaningful impact on both personal wellbeing and the environment. That’s why our tea bags are made from plant-based, compostable materials, and our loose-leaf blends are packaged in biodegradable or reusable options. We carefully source our ingredients with ethics and sustainability in mind, ensuring that every cup of tea aligns with our values of quality, health, and environmental responsibility. By making conscious decisions at every stage, we’re committed to reducing waste, minimising microplastic pollution, and supporting a healthier planet for future generations.

We’re proud to be part of the Bendigo Sustainability Festival again this year (the 30th of March at Garden for the Future in White Hills, Bendigo), where we’ll have our beautiful plastic-free teas available! We love chatting about our eco-friendly practices and the steps we’re taking to reduce plastic waste.