Get ready to sip on this: Your espresso machine isn’t rejecting you—it’s screaming for a better grind. The Breville Bambino’s electric grinder is a marvel, but even the best tools need finesse. If your portafilter is clogging like a highway during rush hour, the culprit is likely your grind size. Espresso demands a balance between finesse and flow, and the wrong setting can turn your shot into a waterlogged disaster.
The Bambino’s “espresso” setting is a starting point, but it’s not a magic wand. Grind too fine, and you’re inviting a clogged filter; too coarse, and you’re left with under-extracted, watery bitterness. The lack of weight-based grinding means you’re relying on guesswork, which is why the portafilter’s resistance feels like a betrayal. The solution? Adjust the grind size manually. Rotate the dial until the flow feels “just right”—a steady stream, not a trickle. Trust your instincts, not the machine’s default.
Another trick: Check your tamping. A uneven tamp creates pressure pockets, slowing water flow. Press firmly and evenly, using a tamper that fits your portafilter perfectly. If the grinder’s burr type is too coarse for your espresso profile, consider swapping to a finer setting or even a dedicated espresso burr. These small tweaks can transform a stalled shot into a silky, balanced cup.
Key points: Adjust grind size until water flows steadily, master even tamping pressure, and consider upgrading burr types if defaults fail.
Drop a tip in the comments—let’s troubleshoot together.
Close: Have you ever battled a clogged portafilter? What worked for you? Drop a tip in the comments—let’s troubleshoot together.
Questions & Answers
Does grinding too fine damage the coffee?
Yes, grinding too fine can over-extract, leading to bitterness. It also clogs the grinder and slows brewing. Use a medium grind for best results.
How to fix a Bambino grinder stuck?
Turn off the grinder, unplug it, and gently twist the burr. If stuck, use a small screwdriver to release the mechanism. Avoid force to prevent damage.
Information sourced from industry reports and news outlets.

