{"product_id":"verybarista-ims-big-bang-58mm-precision-filter-basket-h23-5-18-20g-double-concentrated-center-flow-for-sweeter-extraction","title":"verybarista IMS Big Bang 58mm Precision Filter Basket H23.5 — 18–20g Double, Concentrated Center Flow for Sweeter Extraction","description":"\u003cp\u003e\u003cstrong\u003eThe IMS Big Bang H23.5 is a precision 58mm espresso filter basket engineered to concentrate flow toward the center for a more even double-shot extraction and sweeter cup profile.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis IMS Big Bang basket rethinks hole placement to steer liquid flow from the puck center outward, offering a flatter bottom and a dense central perforation pattern that changes how coffee extracts in bottomless portafilters. Built for 18–20 g double shots and designed for 58–58.5 mm tampers, the H23.5 model emphasizes sweeter, more uniform extractions while minimizing channeling. It’s manufactured by IMS in Italy and fits a wide range of E61-style group heads.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the hole pattern affect extraction?\u003c\/h3\u003e\n\u003cp\u003eThe Big Bang basket shifts many more perforations toward the center and reduces the spacing between those holes. That concentrates the initial flow through the puck’s core, encouraging a consistent extraction front and limiting early peripheral washouts. The outcome is a more uniform draw and a perceptible increase in sweetness for many blends.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e585 centrally grouped holes for focused flow\u003c\/li\u003e\n  \u003cli\u003eReduced distance between central holes for even saturation\u003c\/li\u003e\n  \u003cli\u003eFlat bottom design supports stable puck bed and consistent contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this basket work with my machine and portafilter?\u003c\/h3\u003e\n\u003cp\u003eThe H23.5 Big Bang is made for 58–58.5 mm tampers and has a 70 mm border, so it fits most E61 group head portafilters and many commercial home machines. IMS lists compatibility across a broad range of brands and E61-style systems, but always confirm the portafilter diameter and ridge profile on your specific machine. The basket is ridgeless, so check that your portafilter accepts ridgeless or standard baskets without interference.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 58–58.5 mm tampers and E61 group heads\u003c\/li\u003e\n  \u003cli\u003e70 mm external border — measure your portafilter lip before purchase\u003c\/li\u003e\n  \u003cli\u003eRidgeless profile — ensure your holder accepts ridgeless baskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat grind, dose, and coffee types suit the Big Bang H23.5?\u003c\/h3\u003e\n\u003cp\u003eThis model is calibrated for double doses of roughly 18–20 g and performs best with medium-to-dark or naturally sweet coffees where enhanced sweetness is desirable. Because it tends to mellow acidity, very bright or citrus-forward light roasts may lose some of their lively character if used with this basket. Dialing grind and dose to achieve balanced resistance is important to realize the basket’s uniform extraction benefits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOptimal dose: 18–20 g for double espresso\u003c\/li\u003e\n  \u003cli\u003eBest with balanced, chocolatey, or naturally sweet beans\u003c\/li\u003e\n  \u003cli\u003eUse caution with light, highly citric coffees to avoid flattening brightness\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the Big Bang change everyday workflow and maintenance?\u003c\/h3\u003e\n\u003cp\u003eUsing the Big Bang does not require new brewing mechanics, but you may need small adjustments to grind size, dose, and distribution to find the best shot. The ridgeless form and central-hole focus work exceptionally well with bottomless portafilters to visually monitor extraction. Routine cleaning is the same as other stainless steel baskets; backflushing and periodic soaking remove oils and fines for consistent performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMinor dial-in of grind and dose typically needed\u003c\/li\u003e\n  \u003cli\u003eExcellent visual feedback with bottomless portafilters\u003c\/li\u003e\n  \u003cli\u003eStandard stainless-steel cleaning: backflush and soak as needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The IMS Big Bang H23.5 suits home baristas and pros using E61-style machines who want more even extractions and a sweeter-tasting double shot without changing their machine. It’s particularly appealing to users who pull shots with bottomless portafilters and those using medium-to-dark roasts that benefit from reduced channeling and heightened sweetness. If you favor very bright, citrus-forward single-origin light roasts, test carefully — the Big Bang can soften acidity and alter flavor balance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the H23.5 compatible with 58mm portafilters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The IMS Big Bang H23.5 fits 58–58.5 mm tampers and most E61-style portafilters with a 70 mm border, but check your portafilter clearance for ridgeless baskets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What dose is the basket designed for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This basket is optimized for 18–20 g double espresso doses to achieve its intended extraction profile.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"verybarista","offers":[{"title":"Default Title","offer_id":49211313848539,"sku":"B0CD7M1ZVX","price":43.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/1188\/3483\/files\/verybarista-ims-big-bang-front-view.jpg?v=1788289527","url":"https:\/\/homelypantry.co.uk\/products\/verybarista-ims-big-bang-58mm-precision-filter-basket-h23-5-18-20g-double-concentrated-center-flow-for-sweeter-extraction","provider":"The Homely Pantry","version":"1.0","type":"link"}