MHW DH 18g Filter Basket: 58mm Gold

MHW-3BOMBER DH 18g Filter Basket: 58mm Gold

MHW-3BOMBER DH 18g Filter Basket: 58mm Gold is built for medium-dark and dark roasts, featuring 580 precision-aligned holes in a three-tiered crisscross pattern for smoother extraction and improved flavour clarity.

Precision Extraction for Medium-Dark Roasts

Tailored for espresso made with richer roast profiles, the DH Filter Basket uses three aperture sizes (0.2mm, 0.25mm, 0.3mm) arranged concentrically to control flow rate and pressure distribution. This design balances inner and outer puck pressure, helping reduce channeling and delivering a more rounded, sweeter shot.

How It Works

• Multi-tiered hole arrangement: The outer ring slows the flow using 0.2mm holes, while inner sections use larger apertures to balance the pressure.
• Crisscross distribution pattern: Ensures consistent extraction across the puck.
• Straight, flat bottom: Improves compatibility with tampers and tools, eliminating grooves for even distribution and a stable tamp.

Specifications

• Hole Sizes: 0.2mm, 0.25mm, 0.3mm
• Total Holes: Approx. 580
• Inner Diameter: Approx. 58.5mm
• Outer Diameter (Top): Approx. 70mm
• Height: Approx. 24mm
• Recommended Dose: 18g (varies with grind and roast)
• Material: AISI304 Stainless Steel
• Finish: Gold (PVD-coated)
• Compatibility: Fits most 58mm portafilters

Key Features of the DH 18g Filter Basket: 58mm (Gold)

• ✅ Tailored for medium-dark and dark roasted coffee beans
• ✅ Three aperture sizes: 0.2mm, 0.25mm, 0.3mm for refined pressure balance
• ✅ Crisscross hole alignment: 580 holes arranged in equidistant concentric circles
• ✅ Flat-bottomed basket design: No grooves, compatible with most 58mm tampers and dosing tools
• ✅ Enhanced extraction surface: Encourages uniform flow and even saturation
• ✅ Improved shot quality: Reduces bitterness, boosts sweetness and complexity
• ✅ Constructed from AISI304 stainless steel: Seamless, anti-oxidation, corrosion-resistant

Maintenance & Cleaning

• Rinse under warm water or soak in espresso machine cleaner.
• Avoid abrasive brushes or steel wool.
• Dry thoroughly before reinserting into the portafilter.

Best Practices for Brewing

• Optimise puck prep using a coffee distributor or WDT tool.
• Pair with a 58mm tamper for even, consistent compression.
• Dial in grind size and extraction time to highlight roast profile sweetness and mouthfeel.

Comparison & Performance Insights

When tested against a standard basket using the same dark roast coffee, the DH Filter Basket produced:

• Higher sweetness with reduced bitterness.
• More balanced mouthfeel with improved textural clarity.
• Lower extraction rate (19.02% vs 19.64%) but better flavour yield.
• Lower TDS (9.78% vs 10.1%), reflecting a cleaner cup.

The result? A more nuanced, syrupy espresso—especially when working with darker roast profiles.

Questions & Answers

Review and Coffee Parts Thoughts

The DH Filter Basket in Gold isn’t just a colour variation—it’s an extraction upgrade. Designed specifically for richer roasts, its precise aperture matrix unlocks deeper sweetness and texture clarity while helping avoid over-extraction. This design offers a balanced solution if your shots feel muddy or bitter with a standard basket. Pair it with a WDT tool and 58mm tamper for optimal puck prep. For those who favour syrupy dark roast espressos with refined mouthfeel, this is worth adding to your bar setup.