CS-CZ
Celrith's stainless steel coffee machine filter basket is a precision filtration component that captures coffee grounds, oils and fine particles while resisting high-temperature brewing conditions. It is designed for espresso machines, drip coffee makers, capsule machines and commercial beverage equipment, and is manufactured by Celrith in Zhongshan, Guangdong, China. The basket helps maintain clean flow and consistent extraction, reducing sediment in the cup and load on downstream components.
In coffee preparation, the main contaminants are suspended solids: coffee grounds, fines and oils that escape the brewing chamber. These particles affect clarity, taste and equipment performance. In machines that use water filtration, additional contaminants include scale-forming calcium and magnesium ions, residual chlorine and odour compounds, and trace heavy metals. Celrith addresses both challenges: the stainless steel filter basket physically intercepts coffee particles, while the companion water filter cartridge (where used) reduces scale and chlorine to protect the machine and preserve flavour. For applications requiring water treatment, Celrith offers filter cartridges combining natural coconut shell activated carbon, food-grade sodium or hydrogen ion exchange resin and microporous interception mesh.
Unfiltered particles and scale place a measurable load on coffee equipment. Coffee grounds that pass the basket can accumulate in valves, solenoids and dispensers, causing blockages and inconsistent flow. Scale from hard water coats heating elements and reduces heat transfer, leading to longer heating times and higher energy use. Chlorine and odour compounds affect taste, while heavy metals can pose concerns in sensitive applications. By using a precise stainless steel basket and, where needed, a water filter cartridge, operators reduce these loads, extend service intervals and maintain brew quality. The basket itself is designed for repeated use and cleaning, reducing disposable filter waste.
Celrith's filter baskets are manufactured using precision laser etching and electrochemical forming. The pore size accuracy can be controlled within ±0.01 mm, with uniform hole shape and smooth edges to prevent coffee powder residue and clogging. Each batch is tested at Celrith's CNAS-accredited laboratory for flow consistency, pore size distribution and mechanical strength, ensuring stable extraction. For water filtration, the cartridges use natural coconut shell activated carbon for chlorine and odour reduction, food-grade ion exchange resin for softening (removing calcium and magnesium), and microporous mesh for particle interception. The housing is made of food-grade PP, heat-resistant and compliant with FDA requirements for water contact. Celrith offers full OEM/ODM customisation: diameter, depth, capacity (single, double or bottomless), pore size (coarse or fine), handle design and logo laser engraving, as well as custom packaging.
| Item | Detail |
|---|---|
| Core product name | Coffee machine water filter cartridge / coffee machine water filter / coffee machine filter basket |
| Core filtration media | Natural coconut shell activated carbon + food-grade sodium/hydrogen ion exchange resin + microporous interception mesh |
| Main functional performance | Effective water softening (removal of calcium and magnesium ions), heavy metal filtration, deep removal of residual chlorine and odour, microporous interception of impurities |
| Compatible end appliances | Espresso semi-automatic/automatic machines, American drip machines, capsule coffee machines, commercial beverage dispensers |
| Housing material standard | Food-grade PP (polypropylene), heat-resistant, non-toxic and odourless, compliant with FDA water-contact requirements |
| LSI / search related | Coffee machine accessory OEM, descaling filter cartridge, activated carbon resin filter, coffee machine filter basket customisation |
| Manufacturing and certification system | Backed by the company's 50,000 m² modern plant and national-level CNAS testing centre. Compliant with ISO 9001, ISO 14001, ISO 45001 and IATF 16949 certifications. |
| Customisation and mass production services | Full OEM/ODM contract manufacturing. Supports customer mould development, size customisation, filter material ratio adjustment and branded packaging customisation. |
Celrith filter baskets and cartridges are used by coffee machine manufacturers, commercial coffee chains, hospitality operators and aftermarket brands. They suit espresso machines in cafés and restaurants, drip machines in offices and homes, capsule machines in hospitality, and beverage dispensers in convenience and food service. OEM customers integrate the baskets into new machine designs, while aftermarket customers specify them as replacement parts. The products are also used in water filtration kits for coffee equipment where scale and chlorine control are priorities.
Celrith's filter baskets are produced in a 50,000 m² plant with 6 cleanrooms totalling 20,000 m², where cleaning, assembly and packaging take place in controlled environments to avoid contamination. The company has been developing and manufacturing filtration products for over 20 years and exports to Europe, the USA, Japan and South Korea. Celrith holds ISO 9001, ISO 14001 and ISO 45001 certifications, and obtained IATF 16949 in 2024. Products comply with REACH and RoHS environmental regulations, and compliance documents are available. A CNAS-accredited laboratory provides test reports for filtration efficiency, dust holding capacity and resistance. The plant operates multiple automated production lines with monthly capacity in the millions of pieces. Quality control covers IQC, IPQC and OQC throughout the process. Celrith supports OEM/ODM with customised size, structure, filter grade, frame material, logo and packaging, and has developed over 1,000 filtration solutions. The address is Zhongshan, Guangdong, China.
To receive a tailored quotation or discuss customisation, please contact Celrith with the following details: your device or vehicle model, required size or drawing, airflow or water flow, operating conditions (temperature, pressure, water hardness), and estimated quantity. Our team will respond promptly with recommendations and pricing. Contact us to start the conversation.
The stainless steel filter basket captures coffee grounds, fines and oils, while the optional water filter cartridge reduces calcium and magnesium ions (softening), residual chlorine, odours and heavy metals. Together they address both particulate and dissolved contaminants.
By retaining fine particles, the basket prevents sediment from reaching the cup, resulting in clearer coffee. When used with a water filter cartridge, the reduction of chlorine and scale further preserves the coffee's aroma and flavour.
Yes. Celrith offers OEM/ODM customisation including diameter, depth, capacity (single, double or bottomless), pore size (coarse or fine), handle design and logo engraving. Packaging can also be customised to your brand.
Standard models typically have an MOQ of 1,000–2,000 pieces, while OEM customised versions generally require 5,000 pieces or more, with mould development taking about 40 days. Sample lead time is 7–10 days, and bulk orders usually ship within 25–35 days.
Yes. Free samples of standard specifications are available (customer pays freight). Custom samples incur a tooling fee, which is deductible from bulk orders. All samples come with test reports from Celrith's CNAS-accredited laboratory.
The stainless steel basket can be reused after cleaning and does not require frequent replacement. The water filter cartridge should be replaced based on water hardness and usage; for typical conditions, replacement every 2–3 months is recommended to maintain performance.
Celrith holds ISO 9001, ISO 14001, ISO 45001 and IATF 16949 certifications. Products comply with REACH and RoHS, and food-contact materials meet FDA and LFGB standards. Test reports from the CNAS-accredited laboratory are available.
Celrith has exported to Europe, the USA, Japan and South Korea for over 20 years, serving appliance brands, coffee equipment OEMs and professional traders. The company can support regional certification requirements and technical specifications.