Know exactly when to replace gaskets, screens, burrs, filters, and other wear parts on your Arco equipment. Each item has both a time-based and usage-based trigger — whichever comes first.
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{"consumables": [{"id": "group-gasket","name": "Group Head Gasket","description": "The rubber or silicone seal between the group head and the portafilter. When it wears, you will notice water leaking around the portafilter ears during extraction, or the portafilter becoming either too loose or too tight.","applicable_machines": ["arco-nano","arco-classica","arco-barista-pro","arco-lever","arco-maestro","arco-dual-boiler"],"not_applicable": ["arco-steam","arco-automatico"],"time_trigger_months": 12,"usage_trigger": "Approximately 1,000-1,500 shots, or when you can no longer lock the portafilter snugly, or see water seeping during extraction.","signs_of_wear": ["Water drips from around the portafilter during brewing","Portafilter handle no longer stops at 90 degrees — goes too far or not far enough","Gasket appears cracked, compressed flat, or has coffee permanently embedded in it","Visible channeling at the edges of the puck"],"part_number": "ARCO-GASKET-58 (for 58mm machines) / ARCO-GASKET-53 (for Nano)","price": 6,"diy_difficulty": "easy","replacement_notes": "Remove the old gasket with a flat-head screwdriver or gasket pick. Clean the groove thoroughly. Press the new gasket in by hand, then lock the portafilter to seat it."},{"id": "shower-screen","name": "Shower Screen","description": "The perforated metal disc that distributes water evenly across the coffee puck. Over time, coffee oils and minerals clog the tiny holes, leading to uneven extraction.","applicable_machines": ["arco-nano","arco-classica","arco-barista-pro","arco-lever","arco-maestro","arco-dual-boiler"],"not_applicable": ["arco-steam","arco-automatico"],