From a café roasting its own beans to container-load export, the difference is daily volume. Here is which size each type lands on, and why.
Work backwards from a week of sales: weekly roasted kilos ÷ 5 working days ÷ 0.85 (weight loss) = daily green requirement. Divide that by the mid-batch figure and you have batches per day. Six to eight is comfortable; beyond that the operator is chasing the machine.
If the number lands between two sizes, take the smaller one. Add the second machine when orders are steady — two small roasters schedule better than one big one.
