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process engineering · food production

Coffee Roasting Block Flow

This coffee-roasting block flow diagram keeps the production process at a useful presentation level. Green beans, roasting air and the selected roast profile enter the roasting and cooling stage. That stage produces the roasted-bean stream for degassing and packaging, plus chaff and exhaust as a separate byproduct stream. The final block represents finished roasted coffee. This drawing is suitable for explaining process scope, planning a small roastery or starting a hazard review. It intentionally does not include equipment sizes, temperatures, airflow rates or control loops. Add bean storage, quality control, grinding, flavoring or inventory handling when those stages are relevant to the process being discussed.

Type Control-systems block diagramStandard Ogata / standard controls textbook conventionEngine schematex-blockdiagramUpdated 9/24/2026
Coffee Roasting Block Flow
Drawing preview
The request

“A coffee roasting block flow diagram with green coffee beans, a roast profile and roasting air entering roasting and cooling. Roasting and cooling produce chaff and exhaust and feed degassing and packaging, which produces roasted coffee.”

Then tryAdd a green-bean storage block before roastingAdd a quality-control sample after cooling
What is in this drawing

Read the decisions behind it.

01Recipe input

Shows the roast profile as a control input.

02Byproduct path

Separates chaff and exhaust from the product stream.

03Finished-goods stage

Places degassing and packaging after roasting.

Use this diagram to present the main inputs, outputs and stages of a coffee-roasting process.

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FAQ

Common questions

Why show the roast profile?

It is a key process input that determines the roasting program and target product characteristics.

What is chaff?

Chaff is the light skin released from coffee beans during roasting.

Why is packaging after degassing?

Freshly roasted coffee releases gas, so the process often includes a degassing period before packaging.