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Celrith coffee machine filter cartridges are compatible with Calphalon machines and are designed to reduce waterborne impurities that affect coffee taste and machine reliability. They filter sediment, rust, chlorine, odour, heavy metals such as lead and copper, and scale-forming minerals. These cartridges suit domestic and commercial coffee machines, as well as OEM water filter programmes. Celrith is a filtration manufacturer based in Zhongshan, Guangdong, China.
Water is mostly water, but the remaining fraction decides how coffee tastes and how long equipment lasts. Sediment and rust particles from ageing pipes can reach the brewing circuit and leave deposits on valves and shower screens. Chlorine and organic odours mask the aromatic compounds that give coffee its character. Dissolved minerals, mainly calcium and magnesium, precipitate as scale when water is heated, coating heating elements and reducing flow. Heavy metals such as lead and copper, even at low levels, are undesirable in drinking water and can accumulate in the machine over time.
The consequences are not only a flat cup. Contaminants put a load on the equipment itself: scale acts as an insulating layer on heating elements, making them work harder and increasing energy consumption; sediment clogs small orifices and pumps; and chlorine accelerates the ageing of elastomers and seals. For coffee businesses, this load translates into service calls, downtime and inconsistent extraction. Celrith cartridges are built to intercept these contaminants before they reach the brewing circuit and the boiler.
Each contaminant affects equipment differently. Scale is the most familiar: it reduces heat transfer, extends heat-up times and can lead to overheating or failure of heating elements. Sediment and rust particles cause wear on pumps and valves and can block fine passages in solenoid valves and flow meters. Chlorine and its by-products are oxidising agents that degrade rubber gaskets, seals and plastic components, shortening their service life and increasing the risk of leaks. Heavy metals can catalyse oxidation and, in high concentrations, may affect the taste and safety of the final beverage.
The cumulative effect is a system that drifts out of specification: water flow drops, temperature stability suffers and the machine requires more frequent descaling and maintenance. In commercial settings, where machines operate continuously, the cost of this load is measured in lost productivity and shortened equipment life. A filter that reliably reduces these contaminants protects both the beverage and the machine.
Celrith coffee machine filter cartridges combine two functional media: high-quality coconut shell activated carbon and food-grade ion exchange resin. The activated carbon has a large internal surface area that adsorbs chlorine, organic odours and taste-affecting compounds. The ion exchange resin exchanges hardness ions (calcium and magnesium) for softer ions, reducing the potential for scale formation. Together, they address the main waterborne threats to coffee quality and machine health.
The filtration media are contained in a cartridge that is precision-moulded to the original Calphalon specification, with compatible dimensions, connections and flow characteristics. This means the cartridge can be used as a direct replacement without modification. The fine microporous structure also intercepts sediment and rust particles, adding a physical barrier before the water reaches the brewing system.
By reducing scale precursors, the cartridge helps maintain heat transfer efficiency and stable extraction temperatures. By removing chlorine and odours, it allows the coffee's natural flavours to come through. And by capturing sediment, it protects pumps and valves from wear. The result is a simpler maintenance routine and more consistent coffee.
| Item | Detail |
|---|---|
| Filtration Media | High-quality coconut shell activated carbon and food-grade ion exchange resin |
| Micron Rating | Fine microporous interception; effectively captures sediment, rust and other large particles |
| Filter Life | Approximately 250 litres or 2–3 months, depending on local water quality and usage frequency |
| Operating Pressure | 20–120 psi (approximately 1.4–8.3 bar) |
| Operating Temperature | 2°C–38°C (cold water filtration only) |
| Applications | Automatic coffee machines, semi-automatic espresso machines, commercial coffee machine water softening, OEM water filter cartridge customisation |
| Quality Certifications | Manufacturing conforms to ISO 9001/14001, IATF 16949, medical supplies GMP standard, CNAS national-level testing certification |
Celrith coffee machine filter cartridges are used by coffee machine owners and operators who want to protect their equipment and improve beverage quality. Typical users include cafés and restaurants with semi-automatic or automatic espresso machines, offices and hospitality settings with high-volume coffee service, and households with Calphalon-compatible machines. The cartridges are also suited to commercial coffee machine water softening applications, where consistent water quality is critical.
For OEM and ODM customers, the cartridges can be customised to match specific machine models or market requirements. Customisation options include changes to the filter media formulation (for example, enhanced chlorine removal, softening or lead removal), housing colour and logo, and packaging design. With over 1,000 filtration solutions developed, Celrith can support private-label programmes and custom developments.
Celrith manufactures its filter cartridges in Zhongshan, Guangdong, China, and supplies customers in Europe, the United States, Japan and South Korea. The company holds ISO 9001, ISO 14001 and ISO 45001 management system certifications, and its products comply with REACH and RoHS environmental regulations; compliance documents are available on request. In 2024, Celrith also obtained IATF 16949 certification, and its manufacturing follows medical supplies GMP standards. The production base covers 50,000 m², including six cleanrooms totalling 20,000 m². An in-house laboratory accredited by CNAS provides testing for filtration efficiency, contaminant capacity and resistance, supporting batch consistency and product validation.
To receive a tailored quotation or discuss a custom filter solution, please contact our team. It helps if you can provide the following details: your device or vehicle model, the size or a drawing of the cartridge, the required airflow or water flow, your operating conditions (such as water quality and temperature), and the quantity you need. We will respond promptly with a proposal. Contact us to start the conversation.
It reduces sediment, rust particles, chlorine, odours, heavy metals such as lead and copper, and scale-forming minerals. The coconut shell activated carbon adsorbs chlorine and organic compounds, while the ion exchange resin softens water by exchanging hardness ions. This combination helps protect both coffee flavour and machine components.
By reducing scale precursors, it helps maintain heat transfer efficiency and prevents insulating deposits on heating elements. The microporous structure captures sediment that could clog pumps and valves, and the removal of chlorine reduces oxidation of seals and gaskets. The overall effect is less wear and more stable performance.
Yes, the cartridge is precision-moulded to the original Calphalon specification, with compatible dimensions, connections and flow characteristics. It can be used as a direct replacement without modification. For other machine models, customisation is available.
Yes, we welcome sample testing before purchase. Standard stock samples can be dispatched within 3–5 working days; customised samples typically take 7–15 days depending on complexity. Samples are accompanied by a CNAS laboratory test report, and you may also arrange third-party verification.
For standard compatible models, the MOQ is 5,000 pieces, with a lead time of 15–20 days for stock or small batch orders. For OEM customised models, the recommended MOQ is 10,000 pieces, and the production cycle including tooling and packaging development is approximately 25–30 days.
The cartridge has a rated life of approximately 250 litres or 2–3 months, whichever comes first. Actual replacement frequency depends on local water quality and usage frequency; in areas with harder water or heavy use, you may need to replace it more often. Regular replacement ensures consistent filtration performance.
The activated carbon and resin used are NSF 42/53 certified materials and comply with US FDA food-contact standards and EU REACH and RoHS regulations. The manufacturing facility is certified to ISO 9001, ISO 14001, ISO 45001, IATF 16949 and medical supplies GMP. These credentials support market entry in Europe, the US, Japan and South Korea.
Yes, we offer full OEM/ODM services, including customisation of cartridge dimensions and connections, filter media formulation (such as enhanced chlorine removal, softening or lead removal), housing colour and logo, and packaging design. With over 1,000 filtration solutions developed, we can quickly produce samples based on your machine model and market needs. Contact us to discuss your requirements.