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KeepCup Brew Cork Glass Coffee Cup, 16 oz

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KeepCup

KeepCup

Brew Cork Edition, Toughened Glass Cup with Natural Cork Band, 16 oz

Every use replaces a plastic-lined disposable cup, and the drink itself sits in glass. The plastic lid keeps it from the plastic-free tier; drink lid-off at the cafe and it effectively is.

3 / 10 Medium plastic footprint $$

A toughened glass cup with a natural cork band that replaces disposable coffee cups, which are plastic-lined and shed microplastics into hot drinks. The press-fit lid and plug are the plastic parts.

How this score breaks down

Plastic in the product and its packaging Some plastic
Blown toughened glass cup with a natural cork band. The press-fit lid and sipper plug are plastic; KeepCup states its plastics are BPA and BPS free (to be confirmed on their site). You drink through the plastic lid when it is fitted.
Microplastic shedding and leaching Sheds very little
Low from the cup: hot coffee sits in glass, unlike a disposable cup whose polyethylene lining sheds into the drink. The plastic lid contacts the drink at the sip point.
End of life: persistence and recovery Mostly recovers
Recyclable, repairable, or genuinely recovered; low persistence.
Plastic-derived chemicals of concern Low concern
No PFAS, PTFE, BPA, or other leaching plastics in food or heat contact.
Transparency and verification Mostly disclosed
How fully the brand discloses its materials and coatings, and whether independent testing backs it up.

Strengths

  • Hot drink sits in toughened glass, not plastic lining
  • Each use displaces a disposable cup lined with polyethylene
  • Cork band is a natural wine-industry byproduct
  • Barista standard sizing

Trade-offs

  • Lid and plug are plastic and sit at the sip point
  • Glass needs care compared with steel cups
  • KeepCup does not appear in the current B Lab registry, so no certification badge is shown

What's inside

Blown toughened glass cup with a natural cork band. The press-fit lid and sipper plug are plastic; KeepCup states its plastics are BPA and BPS free (to be confirmed on their site). You drink through the plastic lid when it is fitted.

Free of Plastic cup body, disposable cup plastic lining

Packaging
Not stated
Microplastics
Low from the cup: hot coffee sits in glass, unlike a disposable cup whose polyethylene lining sheds into the drink. The plastic lid contacts the drink at the sip point.

Attributes

What this product is, at a glance.

Glass Drink PathNatural Cork BandReusable

Certifications

None listed. We only show independent third-party certifications we can verify with the issuing body, and this product does not currently hold any.

About KeepCup

KeepCup started the reusable barista-standard cup movement in Melbourne. The Brew Cork edition pairs blown tempered glass with a cork band made from waste from the wine cork industry.

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Melissa Walker, founder of Thriving Sustainably

Hi, I’m Melissa-founder of Thriving Sustainably

Melissa Walker is the founder of Thriving Sustainably. A mom who started reading the labels after learning how much microplastic ends up in our bodies, she co-leads the environmental pillar of a Fortune 500 company’s employee sustainability program and rates brands against public certification databases so families can lower their microplastic exposure without the guesswork.