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Celrith coffee machine filter cartridges are water purification cartridges compatible with CAPRESSO machines, designed to reduce chlorine, odours, heavy metals, and scale-forming minerals from tap water before they reach your espresso system. They are intended for owners of automatic and semi-automatic coffee machines, as well as commercial coffee service operators and OEM buyers, who want to protect equipment and maintain consistent coffee flavour. By intercepting these contaminants at the inlet, the cartridge relieves the load on the boiler, pump, and brewing circuit.
Municipal water is not neutral to a coffee machine. It carries residual chlorine and chloramines from treatment, trace heavy metals from pipework, and dissolved calcium and magnesium that precipitate as scale when heated. Each of these has a direct effect on what ends up in the cup: chlorine and organic odours flatten aroma, while scale alters extraction temperature and flow. In hard-water areas, the problem compounds quickly—every litre brewed leaves mineral deposits behind.
For cafés and offices running dozens of cycles a day, this is not a cosmetic issue. Even a thin layer of scale on a heating element reduces heat transfer, forcing the machine to work longer and hotter. Over time, the result is inconsistent shots, higher energy use, and premature component failure. The Celrith cartridge is built to address these specific contaminants before they reach the brewing path.
Scale is the most visible burden. As calcium carbonate builds up in the boiler and on the thermoblock, the machine loses thermal efficiency and the pump faces higher resistance. Descaling helps, but repeated descaling cycles themselves stress seals and metal surfaces. Chlorine adds a different load: it accelerates corrosion of metal parts and degrades rubber gaskets, shortening service life. Sediment—sand, rust, and fine particles from ageing pipes—can clog solenoid valves and small orifices, causing erratic flow and costly repairs.
For commercial operators, the cumulative effect shows up as downtime and inconsistent product. A machine that cannot hold temperature or flow rate cannot deliver repeatable espresso. The cartridge acts as a first line of defence, reducing the frequency of descaling and the risk of blockages, so the machine spends less time under maintenance and more time in service.
Inside the cartridge, water passes through a bed of high-quality coconut-shell activated carbon followed by food-grade ion exchange resin. The activated carbon adsorbs chlorine, chloramines, and organic compounds responsible for off-flavours, while the resin exchanges hardness minerals for softer ions, reducing the potential for scale formation. A fine microporous structure intercepts sediment and rust particles before they can enter the machine.
The result is water with lower scaling potential and fewer taste-affecting impurities. Because the cartridge is designed to the same dimensional and connection specifications as the CAPRESSO original, it can be used as a direct replacement without adapters. The filtration media are selected for consistent flow and capacity, so the cartridge performs predictably across its service life.
| Item | Detail |
|---|---|
| Filtration media | High-quality coconut-shell activated carbon + 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 | Production conforms to ISO 9001, ISO 14001, IATF 16949, medical supplies GMP standard, and CNAS national-level testing certification |
This cartridge is used by coffee machine owners who want to protect their investment and maintain cup quality without relying on bottled water. Automatic and semi-automatic espresso machines in homes and small offices benefit from reduced descaling and more stable extraction. Commercial operators—cafés, restaurants, and hospitality settings—use it to soften water for coffee equipment where consistency across many brews per day is essential.
OEM and ODM customers also use this cartridge as a platform for private-label water filtration. Celrith supports customisation of dimensions, structure, filtration media grade, logo, and packaging, with more than 1,000 filtration solutions developed to date. Whether the requirement is a standard replacement cartridge or a custom configuration for a specific machine model, the cartridge can be adapted accordingly.
Celrith products are manufactured in a facility that meets REACH and RoHS environmental compliance requirements, and we can provide the corresponding compliance documents. The company holds ISO 9001, ISO 14001, and ISO 45001 certifications, and in 2024 obtained IATF 16949 automotive quality management system certification. Production takes place in a 50,000 m² plant, which includes six cleanrooms totalling 20,000 m², supporting consistent assembly conditions.
Our in-house laboratory is CNAS-accredited and can issue test reports for filtration efficiency, contaminant capacity, and resistance. Quality control follows IQC, IPQC, and OQC processes across the full production flow. With more than 20 years of experience in filtration research and manufacturing, and continuous exports to Europe, the US, Japan, and South Korea, we support OEM/ODM projects with automated production lines capable of millions of units per month.
To receive a quotation or discuss a custom cartridge, please provide the following details: your coffee machine model or vehicle model (if applicable), the required dimensions or a drawing, the expected water flow rate, operating conditions such as pressure and temperature, and the quantity you plan to order. This information helps us confirm compatibility and recommend the right configuration. Contact our team to start the conversation.
It reduces chlorine, chloramines, organic odours, heavy metals, and scale-forming minerals such as calcium and magnesium. A fine microporous structure also captures sediment, rust, and other large particles. These are the main contaminants that affect coffee flavour and put load on the machine's boiler and pump.
Food-grade ion exchange resin softens the water by exchanging hardness minerals for softer ions, which lowers the potential for scale formation in the boiler and heating elements. This helps maintain heat transfer efficiency and reduces the frequency of descaling. The activated carbon layer also removes chlorine that can corrode metal parts.
Yes, it is designed to match the original CAPRESSO specifications for dimensions, connections, and flow, so it can be used as a direct replacement. For OEM/ODM projects, we offer customisation of dimensions, structure, filtration media grade, logo, and packaging. More than 1,000 filtration solutions have been developed to date.
Replace it approximately every 250 litres or every 2–3 months, whichever comes first. Actual life depends on local water hardness and usage frequency. In hard-water areas or high-volume commercial settings, more frequent replacement may be needed to maintain flow and filtration effectiveness.
We support sample requests for evaluation; please provide your machine model and required specifications. The standard compatible model has an MOQ of 5,000 pieces, while OEM customised versions typically require 10,000 pieces or more. For a quotation, contact us with your quantity and technical details.
Standard compatible models are usually delivered within 15–20 days, especially for stock or small batch orders. OEM customised versions, including tooling or packaging development, typically take 25–30 days for mass production. Lead times may vary with order quantity and customisation scope.
Our CNAS-accredited in-house laboratory can test filtration efficiency, capacity, and resistance, and we follow IQC, IPQC, and OQC processes throughout production. The manufacturing facility holds ISO 9001, ISO 14001, ISO 45001, and IATF 16949 certifications. Products meet REACH and RoHS requirements, with compliance documents available.
Yes, we offer replacement cartridges compatible with Breville, Jura, De'Longhi, Philips Saeco, Krups, Miele, and other major brands. If you have a specific model or want to develop a new one, provide a sample or drawing and our team will evaluate it. Contact us to discuss your requirements.