Wash and check the seal
MonthlyA vacuum canister is only as good as the gasket, and coffee oil hardens it.
What you need
- Warm soapy water. Damp cloth. A spare gasket, since it is a wear part.
What goes wrong
- Submerging or dishwashing the lid, which kills the pump. Never checking the gasket and assuming the vacuum still works. Storing beans in it while damp inside.
The procedure
- Empty it completely and wash the body in warm soapy water. Do not submerge the lid.