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The Celrith coffee machine filter cartridge is a drop-in water purification filter compatible with the KitchenAid KCM5WFP. It reduces the impurities that alter both the taste of the brew and the working life of the machine: residual chlorine, odours, volatile organic compounds (VOCs), sediment, rust and the calcium and magnesium ions that form scale. It is intended for coffee makers in homes, cafés and offices, and for brands and distributors who buy coffee machine water filters in volume, including OEM and ODM programmes.
The water going into a coffee machine is never neutral. Municipal supply carries residual chlorine from disinfection, which reacts with coffee aromatics and leaves a flat, chemical note in the cup. It also carries organic matter, fine sediment and the dissolved minerals that make water hard. Each of these affects a different part of the process, and all of them arrive with every tank refill.
Chlorine and VOCs are the flavour problem. They are small, reactive molecules that are difficult to remove mechanically, and they show up in the cup long before they show up on any test strip. Calcium and magnesium are the equipment problem. They stay dissolved while the water is cold, then precipitate as carbonate scale when the water is heated inside the boiler and the lines.
The Celrith cartridge addresses both in one body. A bed of quality coconut-shell activated carbon adsorbs chlorine, odours and VOCs, while a food-grade ion exchange resin captures the hardness minerals that would otherwise become scale. Fine microporous interception in the media bed also holds back sediment, rust and other large particles, so they do not reach the brew path.
Scale is the most expensive consequence of unfiltered water. It forms a thermally insulating layer on heating elements, so the boiler works harder and longer to reach the same temperature, and recovery time between brews stretches out. On commercial machines running continuously, that lost throughput is a daily cost; on domestic machines it shortens the service life of the whole appliance.
Sediment causes a different kind of load. Particles accumulate in valves, small-diameter tubing and the shower screen, narrowing the flow path and creating sites where scale and biofilm can start. Chlorine adds a third, slower load on elastomers and seals. Filtering the incoming water removes all three at the point of entry, which is simpler and less costly than descaling and servicing afterwards.
The cartridge is rated for an operating pressure of 20 - 120 psi (approximately 1.4 - 8.3 bar) and an operating temperature of 2°C - 38°C. It is for cold-water filtration only: the incoming water is treated before it reaches the boiler, which is where scale would otherwise begin.
The filtration media combine quality coconut-shell activated carbon with food-grade ion exchange resin. The coconut-shell carbon is chosen for its adsorption capacity and low fines, and the resin is there specifically for hardness reduction. Together they deal with taste, odour and scale precursors in a single pass.
Filter life is rated at approximately 250 litres or 2 - 3 months, depending on local water quality and how often the machine is used. That rating is a practical planning figure rather than a maximum, and in hard-water areas or high-volume settings the shorter end of the range applies.
Celrith also builds this cartridge for private label and OEM programmes. The media, the housing and the connection can be adapted to a target machine, and the product is also offered for commercial coffee machine water softening and for OEM water filter cartridge manufacturing. Because the factory develops more than 1,000 filtration solutions, a compatible cartridge can be matched to the flow, pressure drop and connection size of the original part rather than approximated.
| Item | Detail |
|---|---|
| Product type | Coffee machine water purifying filter cartridge |
| Compatibility | Compatible with KitchenAid KCM5WFP |
| Filtration media | Quality coconut-shell activated carbon and food-grade ion exchange resin |
| Particle interception | Fine microporous media that 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 and semi-automatic espresso machines, commercial coffee machine water softening, OEM water filter cartridge manufacturing |
| Quality systems | Production under ISO 9001, ISO 14001 and IATF 16949, with GMP for medical supplies and CNAS national-level testing |
Home users with a compatible KitchenAid machine are the most direct audience: the cartridge is a straightforward way to protect a machine that is used daily and to keep the flavour of the coffee consistent from one tank to the next.
Cafés, offices and other sites running automatic or semi-automatic espresso machines use it for water softening ahead of the boiler, where the cost of scale is measured in downtime rather than in filter price. Distributors and appliance aftermarket suppliers buy it as a consumable that fits an existing installed base.
Brands and OEM customers use Celrith for private label cartridges, including multi-language packaging and connection development for other machine models. The same production line serves each of these groups.
Celrith products are manufactured to meet REACH and RoHS environmental requirements, and compliance documentation can be supplied on request. The company holds ISO 9001, ISO 14001 and ISO 45001 certification, and its production is also certified to IATF 16949, the automotive quality management standard, obtained in 2024.
Testing is carried out in the company's own laboratory, which is accredited by CNAS, the China National Accreditation Service for Conformity Assessment. That laboratory issues reports covering filtration efficiency, dust-holding capacity and resistance, so performance data for a given cartridge can be traced to a documented test.
The manufacturing base in Zhongshan, Guangdong, China covers a plant area of 50,000 m², including six cleanrooms totalling 20,000 m². Quality control runs through IQC, IPQC and OQC across the process. With more than 20 years of filtration development and manufacturing experience and continuous export to Europe, the United States, Japan and South Korea over that period, the company supports OEM and ODM work on dimensions, structure, media grade, frame material, logo and packaging, and has developed more than 1,000 filtration solutions to date.
To move an enquiry forward quickly, send the device or vehicle model, the size or a drawing of the cartridge you need, the airflow or water flow it must handle, the operating conditions, and the quantity you are planning. That information lets us confirm fit and quote accurately.
Send your requirements through the contact page and our team will respond with specification details, sample options and pricing.
The cartridge uses quality coconut-shell activated carbon with food-grade ion exchange resin to reduce residual chlorine, odours, volatile organic compounds, sediment, rust and the calcium and magnesium ions that cause scale. It targets both the taste side and the equipment side of the water problem in a single pass. Fine microporous interception in the media bed also holds back larger particles.
The ion exchange resin captures hardness minerals before the water reaches the boiler, so they do not precipitate as carbonate scale on heating elements and lines. Less scale means the boiler heats efficiently and recovery time between brews stays consistent. The cartridge is fitted on the cold-water side, at an operating temperature of 2°C - 38°C.
It is designed as a compatible replacement for the KitchenAid KCM5WFP. For other models, Celrith offers OEM and ODM development covering media, housing, connection size, logo and packaging, with more than 1,000 filtration solutions developed to date. Send the model or a drawing so fit can be confirmed before sampling.
Yes. Enquiries that include the device model, size or drawing, water flow, operating conditions and planned quantity can be quoted accurately. Samples are arranged so the cartridge can be tested in the actual machine. Requests go through the contact page at aacf.com.cn.
Minimum order quantity and lead time depend on whether you need a standard compatible cartridge or a customised OEM version, and on packaging requirements. The Zhongshan plant runs multiple automated production lines with monthly capacity in the millions of pieces. Share your quantity and specification and the team will confirm both figures.
Filter life is rated at approximately 250 litres or 2 - 3 months, depending on local water quality and how frequently the machine is used. In hard-water areas or high-volume settings, replace at the shorter end of that range. Replacing on schedule keeps chlorine and hardness reduction consistent rather than letting performance drift.
Testing is carried out in Celrith's own laboratory, which is accredited by CNAS, and reports cover filtration efficiency, dust-holding capacity and resistance. Production follows ISO 9001, ISO 14001 and IATF 16949 quality systems, and the plant includes six cleanrooms totalling 20,000 m². Products meet REACH and RoHS requirements, with compliance documents available on request.
Yes. OEM and ODM support covers dimensions, structure, media grade, housing material, logo and packaging, including multi-language retail packaging. With more than 20 years of filtration manufacturing and continuous export to Europe, the United States, Japan and South Korea, the company can develop a cartridge matched to your target machine. Start with an inquiry through the contact page.