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Chaffless Center Cut® process

How Chaffless works

Our proprietary Center Cut machine processes roasted whole beans, using rollers and airflow to separate residual chaff and center-cut material. Every Chaffless product is pre-ground and packaged ready to brew.

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Crematics Center Cut Chaffless coffee processing machine
Center Cut equipmentRollers / airflow / collection

Start to finish

Four steps, in order

  1. 01

    Roast

    Specialty coffee, roasted to order in Atlanta.

  2. 02

    Crack

    Rollers crack the roasted beans open.

  3. 03

    Separate

    Moving air lifts the loosened chaff away.

  4. 04

    Pack

    Pre-ground coffee, packed ready to brew.

What is chaff?

The skin in the crease

Silverskin is the thin layer that hugs the coffee seed. Roasting detaches most of it, and what comes off is the light, papery material roasters call chaff.

A little stays down in the center cut, the natural crease running the length of the bean. That leftover material is what this process is built to reduce.

A roasted coffee bean with chaff visible in the center crease, and a loose flake of chaff beside it

Inside the machine

Rollers, airflow, and collection

Nothing is added and nothing is dissolved. The patent family describes a purely mechanical system: roller geometry, moving air, and a staged collection path.

Patent drawing: roasted coffee falls through cutting rollers while airflow carries loosened material into a collection tray
From KR 10-2555200. Coffee drops through the cutting rollers (120); air moves the loosened material left and down into collection (150).
01

Patterned rollers

Patterned rollers break roasted whole beans into smaller pieces, loosening residual chaff and center-cut material for separation.

02

Airflow

Directed air lifts the lighter chaff and center-cut material off the heavier roasted coffee.

03

Collection

The separated material is carried into a collection path while the processed coffee moves on for packing.

Separated materialChaff / center cut

Separated material

The chaff we collect

This is the material the airflow carries away: papery chaff and center-cut fragments, taken off the roasted coffee and collected at the end of the separation path.

In plain terms

What the process does

Center Cut processes roasted whole beans into pre-ground coffee while reducing residual chaff and center-cut material through physical separation. All Chaffless products are ground before packing, ready to brew without grinding at home.

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Source materialPatent record4 records

These documents describe the machinery and the method. They do not, on their own, prove a taste, health, caffeine, or percentage-removal claim.

Drawings on this page are reproduced from the linked patent records. The equipment photo was published by Crematics Lab and included in the supplied process evidence dossier.