Cleaning and filter care

How proper cleaning and filter care extend equipment lifespan, prevent off-flavors, and ensure consistent brewing quality in immersion and hybrid methods.

Coffee Basics Nerds
July 3, 2025
2 min read

Article 11 of 12 in Immersion & Hybrid Brewing/

Why Cleaning Matters

Coffee oils oxidize quickly and can impart rancid or bitter flavors if not removed.
Residual fines clog filters and disrupt flow in future brews.
Dirty filters and brewers reduce clarity and repeatability.

Filter Care by Type

Metal Filters (French Press, AeroPress Disks):
Rinse immediately after use.
Use mild detergent periodically to remove oil buildup.
Scrub mesh gently with a soft brush to prevent clogging.
Cloth Filters (Siphon, Nel Drip, Some AeroPress Add-ons):
Rinse thoroughly under hot water after each use.
Store submerged in clean water in the refrigerator to prevent mold and odors.
Boil occasionally in water with a pinch of baking soda to deep-clean.
Replace when persistent off-flavors appear.
Paper Filters (V60, Clever, AeroPress):
Single-use; discard after each brew.
Pre-rinse before use to remove paper taste and improve flow.

Brewer Cleaning

Disassemble plungers, valves, and filter parts (French Press, AeroPress, Clever Dripper).
Wash with hot water and mild detergent after each session.
Avoid abrasive tools that may damage surfaces or seals.
Regular deep cleans with Cafiza or equivalent detergent help remove oils.

Best Practices

Clean immediately after brewing to prevent drying and buildup.
Dry thoroughly before reassembly to avoid bacterial growth.
Establish a cleaning routine in cafés to maintain consistency.

Summary

Filter and brewer cleanliness directly impact cup quality. Proper care—rinsing, periodic deep cleaning, and correct storage—ensures that immersion and hybrid brews remain flavorful, consistent, and free of off-flavors.

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