MHW-3BOMBER DEX 58.5mm Precision Filter Basket

Precision Extraction for the Discerning Barista: MHW-3BOMBER DEX 58.5mm Filter Basket

Unlock the full potential of your espresso with the MHW-3BOMBER Filter Basket DEX 58.5 mm, a premium addition to your specialty coffee gear. Designed for coffee enthusiasts and professionals who demand exceptional consistency and flavor, this filter basket is engineered to elevate every shot. Whether you’re a home barista perfecting your craft or a specialty café owner optimizing your workflow, the DEX basket delivers the precision, durability, and performance you expect from professional coffee tools.

Engineered for Superior Espresso Extraction

At the heart of outstanding espresso lies the filter basket—and the DEX 58.5mm sets a new standard. Featuring 872 meticulously crafted filter holes, this basket maximizes extraction rate and crema development. The straight-flat bottom and stepped hole design ensure even water flow, reducing channeling and promoting uniform extraction. With a choice of four capacities (15g, 18g, 20g, 22g), you can tailor your dose to match your recipe and taste preferences, all while enjoying the reliability of a basket built for serious coffee preparation.

Key Features & Highlights

• Precision Hole Pattern: 872 high-precision holes (Total Open Area/TOA) for enhanced extraction and richer crema.
• Straight-Flat Bottom Design: Promotes even tamping and distribution, essential for consistent espresso shots.
• Stepped Holes & Rectangular Arrangement: Optimizes water flow, improving extraction efficiency (EXT) and flavor clarity.
• Multiple Capacities: Available in 15g, 18g, 20g, and 22g sizes to suit various dosing strategies.
• Compatible with Standard Portafilters: 58.5mm diameter fits most commercial and high-end home espresso machines (check your portafilter depth; not suitable for Oster machines).
• Data-Driven Performance: Extraction test data shows a 19.54% extraction rate (vs. 17.50% with common baskets) under standard parameters (92.5°C, 26s, 9 bar, 1:2 ratio).
• Polished Finish & Stackable Design: Easy to store and maintain, with a sleek, professional look.

Materials & Craftsmanship You Can Trust

Crafted from AISI304 stainless steel, the DEX filter basket is built for durability, corrosion resistance, and long-term performance. The integral mold construction ensures uniformity and strength, while the laser-engraved bottom logo adds a touch of artisan detail without affecting extraction. Each basket undergoes rigorous quality control to meet the demands of both home and commercial environments. Please note: minor scratches from factory processing and transport are normal and do not impact performance.

Optimizing Your Espresso Workflow

For best results, pair the DEX basket with precision espresso tools such as a calibrated tamper, WDT tool, and high-quality coffee grinder. Ensure your portafilter is compatible with the 58.5mm diameter and has sufficient depth for your chosen basket capacity. The straight-flat bottom design makes tamping easier and more consistent, reducing the risk of uneven extraction. Use with freshly ground coffee and adjust your dose, grind, and tamp to match your recipe for optimal results.

Choosing the Right Size & How to Use

• 15g Basket: Height 22mm, ideal for classic espresso recipes and lighter doses.
• 18g Basket: Height 24mm, the industry standard for modern espresso drinks.
• 20g Basket: Height 26mm, perfect for specialty or high-yield extractions.
• 22g Basket: Height 27mm, for bold, intense shots or split dosing.

Simply insert the basket into your portafilter, dose your ground coffee, distribute evenly (WDT recommended), tamp flat, and brew as usual. Enjoy a richer, more consistent espresso experience every time.

Care Instructions for Longevity

• Rinse thoroughly after each use to remove coffee oils and residue.
• Periodically soak in a solution of espresso machine cleaner for deep cleaning.
• Dry completely before storage to prevent water spots.
• Avoid abrasive scrubbing to maintain the polished finish.

What’s Included

• 1 × MHW-3BOMBER DEX Precision Filter Basket (choose your capacity: 15g, 18g, 20g, or 22g)
• Protective packaging for safe transport
• Instruction leaflet (if provided by manufacturer)

Product Specification