Steam proof hydrolysis resistant extend rubber seal service life

It is common for home‑use espresso machines to suffer from group‑head leakage and unstable pressure after frequent use. Poor pressure leads to weak, watery‑tasting coffee and lost rich aroma.

These breakdowns are mostly caused by worn‑out rubber gaskets.

The seals keep working under 92‑96 °C hot water and 9‑bar steam.

 Repeated hot‑cold cycles trigger ageing, cracks and deformation. Leaks and insufficient pressure ruin coffee flavor, and frequent gasket replacement costs extra expenses.