A bottomless portafilter with the spout removed, so you can watch the espresso come out of the basket itself. Handcrafted walnut handle, flat base, nine fittings covering most home machines.Why anyone uses a bottomless portafilterWith a normal spouted portafilter, everything that goes wrong happens where you can't see it. Take the spout off and the underside of the basket is exposed, so you watch the shot form: it should start as a few dark points, merge into one steady stream, and pour straight down like warm honey.When it doesn't, the portafilter tells you exactly what's wrong. A jet spraying sideways means channeling, water has found a weak spot and is racing through it. A gusher on one side means your tamp was crooked or your grounds weren't level. Blonde, fast, watery output means grind too coarse. You get this feedback on every single shot instead of guessing from the taste.This is the fastest way to actually improve at espresso. It's also the most honest piece of equipment you'll ever own, because it shows you every mistake in high definition.Fair warningFor the first week it will spray your kitchen. Everyone's does. That's not a fault, it's your puck prep being revealed, and it's exactly why the tool works. Stand a towel behind the machine and keep going.The handle and baseWalnut instead of plastic or steel, so it stays cool and feels lighter in the hand. The flat base is genuinely practical: it stands upright on the counter while you dose and tamp, which keeps the coffee bed level instead of sliding to one side. It also comes apart without tools for cleaning, which matters more than it sounds, because bottomless baskets show every bit of old coffee.Getting the right fitChoose by machine, not just by size. The number of ears matters as much as the millimeters, and getting it wrong means it won't lock in. 51mm DeLonghi, 2 ears: ECP3420, EC155, EC221, ECO310, BCO420, ECZ351 51mm DeLonghi Dedica, 3 ears: EC680, EC685, EC785, EC820, EC850, EC860, also SMEG ECF01 51mm DeLonghi La Specialista, 3 ears: EC9335M, EC9155M, EC9355M, EC9665M. Not for Casabrews machines 54mm Breville and Sage, 3 ears: Barista Express, Pro and Touch, Bambino and Bambino Plus, Infuser, Duo Temp Pro (BES840/870/875/878/880/500) 58mm E61 and similar: Rocket, Rancilio, Bezzera, La Pavoni, ECM, Flair 58, Profitec, Faema, Nuova Simonelli, Slayer, Lelit, Ascaso, Sanremo, Victoria Arduino and others 58mm La Marzocco: all machines 58mm Casabrew, 3 ears: 5700Gense, 5700Pro, CM5700, Neutron Pro, Ultra, 4700Gense 58mm WPM Welhome, 2 ears: KD210S, KD210S2, KD230, KD270, KD310, KD320, KD330, KD410, KD510 58mm HiBrew, KitchenAid, Casabrew, 3 ears: universal 3-ear 58mm groups If your machine isn't on the list, count the ears on your current portafilter and measure the basket's inside diameter before you order.
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