{"product_id":"ims-b702tch24e-praecisionskurv-58-mm-convex","title":"IMS Competition Precision Filter Basket 58 mm Convex H24 – B702TCH24E","description":"\u003ch1\u003eIMS Competition Precision Basket 58 mm Convex H24\u003c\/h1\u003e\n\u003cp\u003eAchieve a precise and consistent foundation for your espresso with the \u003cstrong\u003eIMS Competition B702TCH24E\u003c\/strong\u003e. This filter basket combines a cylindrical shape with a convex bottom, 715 precision-engineered holes, and a ridgeless construction without an external retention groove.\u003c\/p\u003e\n\u003cp\u003eThe basket is 24 mm high and designed for 58–58.4 mm tampers. Its capacity makes it suitable for standard double espresso portions, though the optimal dosage depends on the coffee's roast level, density, and grind size.\u003c\/p\u003e\n\u003ch2\u003eConvex bottom with centered flow\u003c\/h2\u003e\n\u003cp\u003eThe B702TCH24E features a slightly curved, convex bottom. This shape is designed to make the most of the coffee puck and direct the espresso flow toward the center of the basket.\u003c\/p\u003e\n\u003cp\u003eThe convex construction can contribute to:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eA centered flow\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eEfficient utilization of the coffee puck\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eEasier drying of the used puck\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eEasier removal of the puck after brewing\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003ctd\u003eA clear flow when using a bottomless portafilter\n\n\n\u003cp\u003eThe basket can also be used in compatible spouted portafilters, provided the portafilter has sufficient clearance for the basket's height and curved bottom.\u003c\/p\u003e\n\n\u003ch2\u003e715 precision-engineered holes\u003c\/h2\u003e\n\n\u003cp\u003eThe bottom of the basket has 715 holes with a diameter of 0.30 mm. The holes are arranged in a hexagonal pattern over a perforated area with a diameter of 49 mm.\u003c\/p\u003e\n\n\u003cp\u003eAs part of the IMS Competition series, the perforation is re-laminated and calibrated after manufacturing. This provides a high degree of uniformity between the holes and a stable foundation for espresso extraction.\u003c\/p\u003e\n\n\u003cp\u003eThe precise perforation makes it easier to work systematically with:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eGrind size\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eDosage\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eDistribution of the coffee\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eBrew time\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eYield\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eCoffee-to-espresso ratio\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003eA precision basket cannot prevent channeling on its own. A consistent grind size, thorough distribution, and level tamping remain essential.\u003c\/p\u003e\n\n\u003ch2\u003eRecommended dosage\u003c\/h2\u003e\n\n\u003cp\u003eIMS specifies different dosage ranges depending on the coffee's roast level:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eDark roast:\u003c\/strong\u003e approximately 14–16 g\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eMedium roast:\u003c\/strong\u003e approximately 15–17 g\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eLight roast:\u003c\/strong\u003e approximately 18–21 g\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003eLight-roasted coffee beans typically have a higher density and therefore occupy less space by weight than dark-roasted beans.\u003c\/p\u003e\n\n\u003cp\u003eThe dosage ranges are guidelines. The optimal coffee quantity also depends on the grind size, coffee density, and the distance between the tamped coffee puck and the machine's shower screen.\u003c\/p\u003e\n\n\u003cp\u003eFeel free to start at the lower end of the recommended range and check that the coffee puck does not touch the brew head.\u003c\/p\u003e\n\n\u003ch2\u003eFor 58 and 58.4 mm tampers\u003c\/h2\u003e\n\n\u003cp\u003eIMS specifies the basket for tampers with a diameter of 58 or 58.4 mm.\u003c\/p\u003e\n\n\u003cp\u003eA tight-fitting tamper helps compress the coffee evenly all the way to the edge of the basket. This reduces the amount of loose coffee along the sides and makes it easier to create a level coffee puck.\u003c\/p\u003e\n\n\u003cp\u003eThe 58 mm designation does not automatically mean that the basket fits all espresso machines with a 58 mm brew head.\u003c\/p\u003e\n\n\u003cp\u003eTherefore, check the following dimensions:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eOuter rim: 70 mm\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eBasket body: 60 mm\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eHeight: 24 mm\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eTamper size: 58–58.4 mm\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003eIt is recommended to compare these dimensions with your current filter basket before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eRidgeless construction\u003c\/h2\u003e\n\n\u003cp\u003eThe B702TCH24E is ridgeless and therefore has no external retention groove.\u003c\/p\u003e\n\n\u003cp\u003eThe smooth exterior makes it easier to insert and remove the basket from the portafilter. The basket is held in place by the portafilter's spring, so the tightness of the fit depends on the size and strength of the spring.\u003c\/p\u003e\n\n\u003ch2\u003eElectropolished surface\u003c\/h2\u003e\n\n\u003cp\u003eThe filter basket has an electropolished surface that reduces microscopic imperfections and provides a smooth finish.\u003c\/p\u003e\n\n\u003cp\u003eThis surface treatment makes the basket easier to clean and helps limit the buildup of coffee oils and fine coffee particles.\u003c\/p\u003e\n\n\u003cp\u003eAs part of the finishing process, the basket also undergoes a wet vibro-finishing treatment with ceramic elements.\u003c\/p\u003e\n\n\u003ch2\u003eSuitable for a bottomless portafilter\u003c\/h2\u003e\n\n\u003cp\u003eThe convex bottom directs the espresso flow toward the center, making the basket particularly suitable for a bottomless portafilter.\u003c\/p\u003e\n\n\u003cp\u003eA bottomless portafilter makes it easier to observe:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eIf the extraction starts evenly\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eIf the espresso converges toward the center\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eIf channeling occurs\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eIf the tamping is uneven\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eIf coffee distribution needs adjustment\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003eHowever, a bottomless portafilter is not required to use the basket.\u003c\/p\u003e\n\n\u003ch2\u003eHow to achieve a great result\u003c\/h2\u003e\n\n\u003col\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eSelect a starting dosage based on the coffee's roast level.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eDistribute the ground coffee evenly in the basket.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eOptionally, use a WDT tool to break up clumps.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eTamp level with a suitable 58 or 58.4 mm tamper.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eCheck the distance between the coffee puck and the brew head.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eBrew the espresso and evaluate the flow, brew time, and taste.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eAdjust primarily the grind size while keeping the dosage stable.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n--\u0026gt;\u003c\/ol\u003e\n\n\u003ch2\u003eCleaning and maintenance\u003c\/h2\u003e\n\n\u003cp\u003eKnock out the coffee grounds after each brew and rinse the filter basket thoroughly with hot water. Regularly check that the small holes are not clogged by coffee oils or fine coffee particles.\u003c\/p\u003e\n\n\u003cp\u003eFor deep cleaning, the basket can be soaked in a suitable cleaning agent for espresso and coffee equipment. Follow the cleaner's instructions and rinse the basket thoroughly with clean water afterward.\u003c\/p\u003e\n\n\u003cp\u003eAvoid needles, steel brushes, and other sharp tools that may damage or alter the shape of the micro-holes.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e IMS\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e Competition Convex\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eModel number:\u003c\/strong\u003e B702TCH24E\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eProduct type:\u003c\/strong\u003e Precision espresso basket\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eCapacity:\u003c\/strong\u003e Double espresso \/ 2 cups\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eHeight:\u003c\/strong\u003e 24 mm\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eOuter rim:\u003c\/strong\u003e 70 mm\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eBasket body:\u003c\/strong\u003e 60 mm\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eTamper size:\u003c\/strong\u003e 58–58.4 mm\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eBottom:\u003c\/strong\u003e Convex\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eRetention groove:\u003c\/strong\u003e No – ridgeless\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eNumber of holes:\u003c\/strong\u003e 715\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eHole diameter:\u003c\/strong\u003e 0.30 mm\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003ePerforated area:\u003c\/strong\u003e 49 mm\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eHole pattern:\u003c\/strong\u003e Hexagonal\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eHole cross-section:\u003c\/strong\u003e Conical\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eSurface treatment:\u003c\/strong\u003e Electropolished\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eRecommended dose, dark roast:\u003c\/strong\u003e 14–16 g\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eRecommended dose, medium roast:\u003c\/strong\u003e 15–17 g\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eRecommended dose, light roast:\u003c\/strong\u003e 18–21 g\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003ePortafilter included:\u003c\/strong\u003e No\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cstrong\u003eTamper included:\u003c\/strong\u003e No\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003eThe IMS Competition B702TCH24E is an ideal choice for the espresso enthusiast who wants a compact, ridgeless precision basket with a convex bottom, consistent perforation, and the capacity for a double espresso.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eHow much coffee fits in the IMS B702TCH24E?\u003c\/h3\u003e\n\n\u003cp\u003eIMS recommends approximately 14–16 g for dark-roasted coffee, 15–17 g for medium-roasted coffee, and 18–21 g for light-roasted coffee. The optimal dosage also depends on the grind size and the density of the coffee.\u003c\/p\u003e\n\n\u003ch3\u003eWhich tamper fits the basket?\u003c\/h3\u003e\n\n\u003cp\u003eThe basket is designed for tampers with a diameter of 58 or 58.4 mm. A tight-fitting tamper makes it easier to compress the coffee evenly all the way to the edge.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the basket fit all 58 mm espresso machines?\u003c\/h3\u003e\n\n\u003cp\u003eNo. You must also check the basket's outer rim of 70 mm, the body diameter of 60 mm, and the height of 24 mm. Additionally, the portafilter must have enough clearance for the convex bottom.\u003c\/p\u003e\n\n\u003ch3\u003eWhat does a convex bottom mean?\u003c\/h3\u003e\n\n\u003cp\u003eThe convex bottom is slightly curved and directs the espresso flow toward the center of the basket. The shape is particularly suitable for use with a bottomless portafilter.\u003c\/p\u003e\n\n\u003ch3\u003eWhat does ridgeless mean?\u003c\/h3\u003e\n\n\u003cp\u003eRidgeless means the basket has no external retention groove. Instead, the portafilter's spring holds it in place around the basket's smooth exterior.\u003c\/p\u003e\n\n\u003ch3\u003eHow many holes does the filter basket have?\u003c\/h3\u003e\n\n\u003cp\u003eThe basket has 715 precision-engineered holes with a diameter of 0.30 mm.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the precision basket prevent channeling?\u003c\/h3\u003e\n\n\u003cp\u003eNot on its own. The uniform perforation provides a precise foundation, but grind size, dosage, distribution, and level tamping are still essential.\u003c\/p\u003e\n\n\u003ch3\u003eCan the basket be used in a spouted portafilter?\u003c\/h3\u003e\n\n\u003cp\u003eYes, provided the portafilter has sufficient diameter and depth for the basket's height and convex bottom. Compare the dimensions with your existing basket before purchasing.\u003c\/p\u003e\n\n\u003ch3\u003eAre a portafilter or tamper included?\u003c\/h3\u003e\n\n\u003cp\u003eNo. The product consists only of the IMS filter basket. A portafilter, tamper, and other espresso equipment are sold separately.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Brændeholm Risteri","offers":[{"title":"Default Title","offer_id":54275443917143,"sku":null,"price":199.0,"currency_code":"DKK","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/0705\/4167\/files\/IMSCompetitionPraecisionskurv58mmConvexH24_B702TCH24E.jpg?v=1786050306","url":"https:\/\/braendeholmristeri.dk\/en\/products\/ims-b702tch24e-praecisionskurv-58-mm-convex","provider":"Brændeholm Risteri","version":"1.0","type":"link"}