Cold Brew Coffee Filter Cartridge is selected when an assembly or process calls for steeping coarse coffee grounds in cold water for 12–24 hours inside a removable fine-mesh cylinder. This application guide to the FDA 21 CFR / EU 1935/2004 food contact type covers concrete end-uses, the specification checklist, correct installation, and where an alternative mesh or filter medium performs better.
Typical Applications for Cold Brew Coffee Filter Cartridge
Where Cold Brew Coffee Filter Cartridge is specified and bought:
- Cold brew system brands: pitcher and jar kits with a permanent steeping core.
- Cafés & bars: batch cold brew in 1-gallon containers without filter bags.
- Tea houses: cold-steeped loose-leaf tea in the ultra-fine variant.
- Kitchenware retailers: mason-jar conversion kits.
How to Specify Cold Brew Coffee Filter Cartridge for Your Application
- Container fit: Match the outer diameter to the jar mouth and the length to the water height.
- Micron rating: Use 74 µm for coffee; 40 µm (325-mesh) for tea and fine grinds.
- End caps: Specify a welded bottom cap and a lid hook or threaded top for the container.
- Standard: Quote FDA 21 CFR / EU 1935/2004 food contact and the size designation from the table on the product page, plus any value you changed in the technical drawing.
Handling & Installation Practice
- Fill grounds loosely; packing the cylinder stops water circulating and under-extracts the core.
- Lift the cartridge straight out and let it drain before washing, rather than squeezing grounds through.
Common Selection Mistakes with Cold Brew Coffee Filter Cartridge
- Using a fine espresso grind, which slips through and silts the concentrate.
- Choosing a cartridge longer than the water depth, leaving the top of the grounds dry.
Where Cold Brew Coffee Filter Cartridge Is Not the Right Choice
Not suited to hot brewing under pressure or to very large commercial batches, where cloth filter bags or a press are used.
