PolyNatural

01/05/2026

Why is coffee chaff inside our Aqua Plant Protector?

We embed coffee silverskin/chaff inside a next‑generation biotechnology creating a bio‑composite that is strong in the paddock and designed to biodegrade in soil and water over time

The chaff acts as a lignocellulosic reinforcement, helping tune mechanical performance and processability while also providing an organic phase that microbes can readily digest at end‑of‑life.

For roasters, this turns a low‑value waste stream into a visible climate and biodiversity solution; for planters, it means robust protection today and no plastic legacy tomorrow.

This is circular design in action: we start with a problem material, and build a product around its strengths.

Plant once. Protect once. Leave in place. PolyNatural Aqua Plant Protectors. For more information visit www.polynatural.nz

25/04/2026

Tiny flakes, massive volume.

Coffee silverskin/chaff is only a small fraction of each bean by weight – typically around 2% of green or roasted coffee, depending on the process and variety.

New Zealand imports around 12,000 tonnes of coffee a year. That equates to approximately 240 tonnes of coffee silverskin/chaff.

When we talk about “waste to value” at PolyNatural, this is what we mean: taking streams like coffee chaff that already exist at scale and turning them into something that actively restores ecosystems. learn more at polynatural.nz

23/04/2026

What actually is that ‘coffee silverskin’ we keep talking about?

Every green coffee bean has a thin, papery skin that clings to the seed inside the coffee cherry.

Roasters call it silverskin or chaff, and it flakes off during roasting, collecting in the chaff tray or cyclone as a very light, dry byproduct

Traditionally, chaff has been treated as waste and sent to landfill or burned, even though it’s a natural, lignocellulosic material rich in useful compounds like caffeine and polyphenols.

At PolyNatural, we see chaff differently: it’s not “waste”, it’s a circular ingredient.

23/12/2025

07/11/2025

Coming soon for the next planting season, we’re proud to introduce the PolyNatural Plant Sleeve , a new biodegradable protector designed to nurture young plants and protect our taonga

Born from pioneering biotechnology and manufactured in Ōtautahi Christchurch, for New Zealand conditions. The Plant Sleeve is designed to nurture young plants.

Stay tuned for updates and pre-orders: https://polynatural.nz/collections/horticulture-products/products/polynatural-plant-sleeve-2-x-bamboo-stake-wool-w**d-mat

22/10/2025

Did you know PolyNatural Aqua is clever enough to reinvent itself in water?
Watch our latest innovation in action, microorganisms and hardworking enzymes steadily gobble it up, transforming it through a natural process. Just like life’s best things, Aqua doesn’t disappear in a flash. It takes its time, gradually breaking down and returning to nature one delicious step at a time.
Science meets sustainability, and with PolyNatural Aqua, the journey back to the earth is as important as the protection it gives your plants today.

17/07/2025

Our PolyNatural Plant Protector Packs are BACK IN STOCK! Visit our online store to order yours today https://polynatural.nz/collections/horticulture-products

03/07/2025

At PolyNatural, our mission is to deliver solutions that protect both young plants and the environment. The upcoming Aqua Plant Protector Pack brings together three key elements for sustainable horticulture:

Aqua Plant Protector: Designed to biodegrade in both soil and aquatic environments, these plant guards have been independently tested for marine, water, and soil biodegradation. If they reach waterways, they break down naturally through microbial activity, leaving no harmful residue. Their expected lifespan is 1–2 years, making them a responsible choice for a wide range of planting projects.

Upcycled Coffee Silverskin: We repurpose coffee silverskin, a byproduct of coffee roasting into a valuable, high-performance resource. This approach supports a circular economy, reduces agricultural waste, and gives new life to materials that could otherwise go to landfill.

Pure NZ Wool W**d Mats : Our 100% pure New Zealand wool w**d mats offer a natural, biodegradable solution for w**d control.

We are proud to set a new standard for eco-friendly horticulture. Stay tuned for the official release of the Aqua Plant Protector Pack in our online store. https://polynatural.nz/collections/horticulture-products/products/aqua-plant-protector-pack

27/06/2025

Thank You & Apologies for the Stock Shortage!

We are absolutely blown away by your support—our plant protectors have completely sold out! Thank you to everyone who has chosen our products to help safeguard your plants.

We sincerely apologize for any inconvenience caused by the current stock shortage.

Good news:

Our brand new Aqua Plant Protector Packs will be back in stock in just two weeks! Check them out here https://polynatural.nz/collections/horticulture-products/products/aqua-plant-protector-pack

Thank you again for your patience and continued support. We can’t wait to get more protectors into your hands soon!