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Bathroom5 min read

Oral care without the plastic

Toothbrushes, toothpaste tubes and floss containers add up to a kilo of plastic per person per decade. The replacements are unfussy.

Bamboo toothbrush and a small glass jar of white toothpaste tablets on warm linen.

A plastic toothbrush does not meaningfully break down on any human timescale — plastics of that thickness are measured in centuries in the marine-debris literature — and the average adult goes through four a year. Add a toothpaste tube — a multi-layer plastic-aluminium laminate that no curbside system recycles — and a plastic floss dispenser, and you are at about 1kg of unrecyclable plastic per person per decade. Every part has a cleaner equivalent.

The brush

A bamboo handle with replaceable plant-fibre or castor-oil-based bristles is the most-supported option today. Fully compostable handles, recyclable bristles in some brands. Replace every three months, same as plastic. Keep one wet rag in the bathroom to wipe the base of the brush dry — the only failure mode of bamboo brushes is mould from sitting in a puddle.

The paste

  • Toothpaste tablets in a glass or aluminium jar — chew, brush, foams up the same as paste.
  • Toothpaste in a refillable glass jar — apply to the brush with a small wooden spoon. Identical formula, no tube.
  • Toothpowder in a tin — old-school, but the most plastic-free option of all. Slight learning curve on dosage.

Floss

Silk floss in a refillable glass vial is the cleanest option — compostable and packaging-free on refill. For vegan households, plant-based PLA floss in a small refillable container is the next best. Skip the standard nylon floss in a plastic dispenser — almost half the weight is the box.

Oral care is a category where the swaps cost roughly the same as the originals, last the same length of time, and produce no waste. There is no real argument against them.

Sources

  1. 300 million toothpaste tubes go to landfillBritish Dental Journal editorial · 2021 · British Dental Journal
  2. Revolutionising recycling: the journey of toothpaste tubesWRAP (Waste & Resources Action Programme) · 2025 · WRAP case study
  3. Colgate-Palmolive HDPE Toothpaste TubeU.S. Plastics Pact · 2023 · U.S. Plastics Pact case study
  4. The Mystery of How Long Until It's Gone — Decomposition of Marine DebrisNOAA Marine Debris Program · ongoing · NOAA
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