What Cafes Don't Tell You About How They Make Matcha

Matcha has become one of the most ordered drinks in UK cafes. It is on the menu at independent coffee shops, high street chains, and everywhere in between. Most of it is pre-batched. Most people drinking it have no idea. Here is what pre-batching actually does to the drink, and why it matters more than the cafe wants you to know.

What pre-batching actually is

Pre-batching means a barista mixes matcha powder into water in large volumes at the start of service, then stores that batch in a jug or container and pours from it throughout the day as orders come in. The appeal for a busy bar is obvious. Whisking matcha to order takes time. Pouring from a pre-made batch takes seconds.

What the customer gets in exchange for that efficiency is a drink that has been sitting, separating and oxidising from the moment it was made. In a busy UK cafe where matcha is one of the most customised and frequently ordered drinks on the menu, that batch might have been made hours before it reaches your cup.

What happens to matcha when it sits

Matcha is a suspension, not a solution. When you whisk matcha powder into water with a chasen, the particles disperse through the liquid and air gets incorporated simultaneously. That is what produces the froth and the texture. The moment whisking stops, the suspension begins to break down. Particles settle toward the bottom, the froth collapses, and the drink starts to separate.

Within minutes the texture is gone. Within an hour the colour has dulled and the flavour profile has shifted. The catechins, the same compounds that make ceremonial grade matcha worth drinking, begin to degrade as the powder oxidises in liquid. A pre-batched matcha poured at the end of a long service is not the same drink as one made to order. It is a diminished version of it.

Why a blender makes it worse

Pre-batching rules out the chasen entirely. The volumes involved make hand-whisking physically impossible at scale, so most cafes that pre-batch use a blender or an industrial mixer instead.

A chasen and a blender produce fundamentally different results. The fine tines of a bamboo whisk move through the liquid at the right speed to incorporate air evenly and create a stable microfoam. A blender creates turbulence. It generates heat through friction and speed, which is exactly the wrong thing for matcha. The froth it produces is coarser, less stable, and collapses faster. The temperature of the liquid has already shifted before it reaches you. What comes out is closer to a green smoothie than a properly prepared matcha.

What it tells you about the matcha underneath

There is a broader point here that most cafes would rather not discuss.

First flush ceremonial grade matcha should not be pre-batched in the first place. The economics of sourcing it make large-volume preparation a non-starter for any bar genuinely using it. What gets pre-batched is almost always a lower grade product to begin with, culinary or premium grade, where the flavour is already flat enough that the preparation method barely registers. Pre-batching is not just a preparation shortcut. In most cases it is a signal about the quality of what is going into the cup before anything else has even happened.

The UK matcha market has grown faster than the quality behind it. Research published earlier this year showed over 1.6 million matcha drinks were sold across more than 2,000 UK retailers in a two-month period. Most of that volume is being served from pre-batched jugs of lower-grade matcha. The category has scaled. The standards largely have not.

The question worth asking

Next time you order a matcha at a cafe, look at what arrives. Is there a froth? Was it made in front of you or handed over immediately? Did it come from a bowl or a jug?

These are not unreasonable questions. A bar confident in how it makes matcha will have good answers. A bar pre-batching from a jug of lower-grade powder will not.

If you want to understand what properly prepared ceremonial grade matcha actually tastes like, Master's Reserve gives you the means to make it correctly at home. Okumidori from Wazuka, first flush, 21 days pre-harvest shading, stone-milled to 10 microns. Whisked to order in your own bowl. No batch, no jug, no compromise.

Master's Reserve is available now, delivered across the United Kingdom.

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