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Frank Green Ceramic Reusable Cup 355ml

Frank Green Ceramic Reusable Cup 355ml

Frank Green

typically £28-32

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Check price on Amazon — Frank Green Ceramic Reusable Cup 355ml (opens in a new tab)
Lower concern, caveats Assessed 11 Apr 2026 · 5 months ago

Assessed from partial disclosure — some materials unconfirmed.

Microplastic Status

We could not fully establish everything Frank Green Ceramic Reusable Cup 355ml is made of, or its materials (stainless steel body, ceramic interior coating, Tritan push-button lid) sit in a class where the published evidence is genuinely mixed. "Lower concern, caveats" is not a signal that the product does shed microplastics — it means we could not get far enough to say that it does not.

How we assess products

We work from published information; we do not lab-test, and a verdict here is never a claim that we have.

"Lower concern, caveats" is not a signal that the product does shed microplastics — it means we could not get far enough to say that it does not.

Read the full methodology

About This Product

The Frank Green Ceramic cup uses a stainless steel body with a ceramic interior coating — the drinking surface is ceramic, not plastic. However, the push-button lid mechanism uses Tritan copolyester. Classified as lower concern with caveats because the primary liquid-contact surface is ceramic, though the lid is plastic.

Materials

  • stainless steel body
  • ceramic interior coating
  • Tritan push-button lid

Where to Buy in the UK

Buying Guide

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Added: 24 February 2026 Last assessed: 11 April 2026

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Frank Green Ceramic Reusable Cup 355ml · typically £28-32

Check price on Amazon — Frank Green Ceramic Reusable Cup 355ml (opens in a new tab)