15. Glossary

Plain-language definitions of the terms you'll meet throughout Roasthubs.

Term	Definition
Zone	A stage of coffee processing: green → roast → grind → pack. See Zones
Lot	The smallest tracked unit of coffee, with a unique ID tag. See Lots
ID tag	The unique identifier automatically given to each lot
Cell	A storage buffer holding one recipe at a time, emptied FIFO. See Cells
Recipe	A definition of a coffee/blend and the rule to transform it between zones. See Recipes
Green coffee	A single-origin recipe with no components
Blend	A recipe combining multiple component recipes
Recipe group	A cluster of recipes used for filtering and reporting
Production	A scheduled job to make a recipe on a machine. See Productions
Run	A production execution grouping one or more batches
Batch	One cycle of a production; usually produces one lot
Plant node	A piece of equipment modelled on the plant map
Plant edge	A directed connection between two plant nodes
Track	A record of coffee moving from one node to another
Genealogy	The family tree of a lot — what was blended into what
WLP	Weight loss percentage during roasting (input vs. output)
FIFO	First in, first out — the oldest lot leaves a cell first
PLC	Programmable logic controller — the system running your physical equipment
OPC-UA	Industrial protocol connecting Roasthubs to your PLC
Contract	A long-term purchase agreement with a supplier
Call-off	A specific delivery drawn against a contract
Arrival	An expected incoming shipment
Receiving	Checking in delivered coffee, creating green lots
Product	A sellable SKU
Sales order	A customer order with one or more order lines
Sample	Physical coffee pulled for quality testing
Parameter	A quality measurement recorded on a lot or sample
Target	An acceptable range/value for a parameter
Permission	A right that grants access to a feature or action
Role	A named set of permissions assigned to users
Feature flag	An organisation-level switch that turns a module on or off

Continue to Daily Workflows →.