Professional Porcelain — the Spec

Every claim we make about these cups, in one place — what each one means, and why it is true of professional porcelain rather than an ordinary domestic cup. No manufacturer badges here, just the facts, illustrated in our own house style. The full story of how we landed on this body over a British-made option is on The Long Version.


Dishwasher safe

Fully vitrified porcelain holds up to repeated hot-cycle washing without dulling, crazing or losing its glaze — built for a machine that runs every service, not just an occasional wash.

Microwave safe

No metal content in the body or glaze, so a reheat is genuinely safe rather than technically-fine-but-risky.

Chip resistant

Thicker-walled and denser than domestic ware — the same weight you feel picking it up is what shrugs off the knocks that chip a thinner cup.

Thermal shock resistant

Built for a kitchen that moves fast — hot service straight out of a hot wash, cycle after cycle, without crazing or cracking. It is still porcelain, though: we would not go fridge to boiling water with one, and we would not ask you to.

Won't stain or absorb

Fully vitrified: 0.4% or less water absorption, against up to 15% for a non-vitrified domestic plate. Less liquid gets in, so coffee and tea staining and lingering odours don't build up over time.

Professional, hospitality grade

The same body restaurants and hotels use for a reason: it survives daily commercial service. A home kitchen is a much easier life for it.

Food safety tested

Tested to 11+ UK, European and international standards, with continuous on-site UKAS-accredited lab testing through manufacture. Less water absorbed means less opportunity for bacteria to take hold.


A note on sourcing these facts. The dishwasher, microwave, chip, thermal-shock and vitrification claims describe professional porcelain as a body generally, and are true of the pieces we've tested. The food-safety testing claim (11+ standards, UKAS lab) is the manufacturer's general claim for their vitrified ceramic range — very likely to apply here, since our pieces use the same vitrified process, but not confirmed piece-by-piece by name. We'd rather tell you that distinction than blur it.

Curious about the sizing and the reasoning behind the cups themselves, not just the material? The Long Version has that. Want to know what goes in each one? How to Fill Your Brewpot.

The cups aren't on sale yet — the first run is being made. There's more on where we're up to, and an email box if you'd like to know the day they land.