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If your Breville espresso machine has started dripping around the portafilter or losing extraction pressure, the culprit is almost always a worn-out brew head seal. Over time, original rubber gaskets harden, crack, and shrink—turning your morning ritual into a messy cleanup. This precision-molded, food-grade silicone group head gasket creates a tight, reliable barrier that stops leaks instantly and locks in the pressure needed for that rich, golden crema. Designed for home baristas who care about consistency and hate overpriced service calls, this seal ring swaps in with zero special tools—keeping your café-quality shots flowing without interruption.
| Material | Food-grade silicone (BPA‑free, odorless) |
|---|---|
| Color | White |
| Outer Diameter | 65 mm (2.56 inches) |
| Inner Diameter | 54 mm (2.13 inches) |
| Thickness | 5 mm (0.20 inches) |
| Temperature Resistance | Up to 450°F (232°C) |
| Compatible Breville Models | BES870 (Barista Express), BES840 (Infuser), BES878 (Barista Pro), BES880 (Barista Touch), BES450 (Bambino / Bambino Plus), BES920 (Dual Boiler), BES980 (Oracle), Duo‑Temp Pro, and most 54 mm Breville group heads. |
| Package Contents | 1 × Group Head Gasket + Installation Guide |
You’ll typically see water leaking from around the top of the portafilter during a shot, or the portafilter handle will lock past the 6 o’clock position with normal force. A hard, glossy, or cracked surface on the gasket also means it’s time to swap.
It’s engineered for Breville’s 54 mm group heads, covering the vast majority of home models—BES870, BES840, BES878, BES880, BES450, BES920, BES980, and Duo‑Temp Pro among others. If your exact model isn’t listed, chances are still high it fits; reach out to us with your model number for a definitive answer.
Absolutely. We use premium food-grade silicone that’s FDA compliant, BPA‑free, and completely odorless. It won’t leach chemicals or affect coffee flavor, even at sustained brew temperatures over 200°F.
For home use (2–4 shots per day), we recommend replacing the gasket every 6–12 months, or immediately when you notice leaks. Heavy users might prefer to swap it sooner—a fresh seal maintains pressure and protects your machine.
Most of our customers install it themselves in under 5 minutes. The included guide walks you through prying out the old gasket (a flathead screwdriver helps) and pressing the new one into the groove by hand. It’s one of the easiest and most impactful DIY maintenance tasks you can do for your Breville.
A snug fit is normal and ensures a leak‑free seal. Warm the gasket slightly with hot water, press it firmly into the groove by hand, and lock in the portafilter a few times to help it settle. Do not use metal tools that could cut the silicone.
