Purge & Wipe
Backflush
Deep Clean
Optimal Temp
Understanding Group Head Maintenance
Proper group head cleaning is essential for consistent espresso quality and machine longevity. Coffee oils and residue build up quickly, affecting taste and causing extraction issues. Following a regular maintenance schedule prevents bitter shots and extends machine life. Research shows daily purging combined with weekly backflushing maintains optimal performance [Majesty Coffee, 2026].
The group head is where water meets coffee - any buildup directly impacts extraction. Professional baristas clean after every session, while home users should follow a structured routine. Using proper cleaning agents like Cafiza prevents damage while effectively removing oils. Remember that extraction quality depends on a clean group head just as much as fresh beans.
✓ Cleaning Schedule:
- • After each use: Quick purge • Daily: Brush and wipe • Weekly: Detergent backflush • Monthly: Deep disassembly • Quarterly: Replace gasket if needed
Quick Answer
Purge group head after each shot, brush daily, backflush with detergent weekly, and deep clean monthly. Use Cafiza or similar espresso-specific cleaner - never dish soap.
Daily Cleaning Routine
Post-Shot Purge
Essential for preventing oil buildup
- Remove portafilter immediately after extraction
- Run water through group for 3-5 seconds
- Wipe shower screen with clean cloth
- Clean group gasket with dedicated brush
- Lock and unlock portafilter to seal
Takes 30 seconds and prevents 90% of buildup issues [Home-Barista, 2026].
End-of-Day Clean
Comprehensive daily maintenance
- Flush group head for 10 seconds
- Scrub shower screen and gasket
- Wipe down entire group area
- Check for loose grounds or residue
- Run cleaning cycle if available
Weekly Backflushing
For Non-E61 Groups:
- Insert backflush disc
- Add 1/8 tsp Cafiza
- Run 5 cycles of 10 seconds on/off
- Remove disc, rinse thoroughly
- Run clean water until clear
For E61 Groups:
- Lever up to engage flush
- Add detergent through portafilter
- Flush for 10 seconds, rest 10
- Repeat 5 times
- Flush clean water 2-3 minutes
Monthly Deep Clean
Disassembly Process:
Remove shower screen, soak in Cafiza solution 30 minutes. Clean group gasket groove with pick tool. Inspect for wear or damage. Reassemble carefully ensuring proper alignment.
What to Check:
Screen condition (replace yearly), gasket integrity (replace every 6-12 months), group head solenoid function, water flow consistency.
Common Issues Found:
Clogged screen holes, hardened oil buildup, gasket deformation, mineral deposits, loose fittings.
Cleaning Products & Tools
Recommended Supplies:
- Espresso-specific detergent (Cafiza, Puro Caff)
- Group head brush (palmyra bristles)
- Blind basket/backflush disc
- Small pick tool for gasket groove
- Microfiber cloths (no lint)
Troubleshooting Common Issues
Problem Solutions:
- Channeling: Clean screen, check distribution
- Sour shots: Backflush with detergent
- Leaking portafilter: Clean gasket groove
- Slow flow: Descale and clean solenoid
- Off flavors: Deep clean entire system
Related Content
Complete Maintenance Guide
Full machine care schedule
Steam Wand Cleaning
Keep your steam perfect
Extraction Guide
Understanding perfect shots
Best Cleaning Products
Top-rated cleaners and tools
Sources:
- Majesty Coffee. "Group Head Cleaning Expert Advice." 2026.
- Ohio SCE. "When to Clean Coffee Machine Group Head." 2026.
- Clive Coffee. "How to Backflush and Clean Your Espresso Machine." 2026.
- Home-Barista.com. "Espresso Machine Cleaning Schedule." 2026.