Brew unit gasket for Miele coffee machines

What is a brewing unit or valve seal

The seal is a component that ensures a tight connection between the moving and fixed parts of the coffee machine's brewing unit or valve. It keeps water and steam pressure exactly where it should act, and prevents it from escaping outside the flow path.

How to spot wear

• Water or steam leaking around the brewing unit or valve
• Weaker or uneven pressure during coffee preparation
• Change in coffee taste, weaker crema
• Hissing, dripping or unusual noise during brewing

When it's time for a replacement

A worn or hardened seal loses its elasticity and stops sealing reliably. This results not only in poorer coffee quality but also in unnecessary strain on other mechanism parts, which must compensate for the pressure loss. Timely replacement prevents bigger failures and keeps the coffee machine running reliably.

How to choose the right seal

Seals differ in shape, size and mounting method depending on the specific type of brewing unit or valve. Before ordering, check the compatibility table on the product page to choose the variant that exactly matches your coffee machine.

Compatible with

• CVA 620
• CVA 640
• CVA 645