MHW-3BOMBER BEP precision basket 58 mm 18 g – dual-layer filter basket
Freshly ground coffee drops into the basket, you level it off and tamp – and as the shot pulls, the espresso runs through calmly and clearly. Hold the basket up to the light and you'll see hundreds of fine, laser-drilled holes, each one like the next.
Nobody needs a new basket. You want one – or you don't. It's a decision born of curiosity, and we respect it either way. If you're here, you know why.
What makes this basket special
The BEP – Butterfly Effect Power – works with dual-layer filtration: two stacked layers of holes catch fine particles before they reach the cup. The result is a clearer cup with fewer fines. The 745 laser-drilled holes, each 0.16 mm, distribute the water evenly across the whole puck.
The base is reinforced to 0.8 mm and barely flexes under pressure – that flexing is a common cause of channelling in the coffee bed. Straight walls and a flat bottom help with even tamping. We like to work with a 1:2 ratio, so roughly 18 g of grounds to 36 g of espresso, and let the weight decide, not the stopwatch. It's our observation that the choice of basket fundamentally changes the aroma profile – that's our view, one of many.
At a glance
| Dose |
18 g |
| Diameter |
58 mm (58.35 mm) |
| Material |
Stainless steel SUS304 (AISI 304) |
| Filtration |
dual-layer, catches ultra-fine particles |
| Holes |
745 laser-drilled, each 0.16 mm |
| Base |
reinforced to 0.8 mm, straight walls, flat bottom |
Who it's for
For anyone with a 58 mm portafilter who pulls a classic double espresso and likes a clear cup with few fines. Every budget is welcome. You belong here because you love coffee – not because you use a particular basket.
What goes with it
The basket fits standard 58 mm portafilters from our portafilter collection. Even distribution beforehand comes from a WDT tool and a tamper – affordable and precise from Normcore, with more material ambition from Weber Workshops.
You'll find the right machine in our coffee machine collection and the grinder in our coffee grinder collection. Still choosing? Use our advisory tool.
Frequently asked questions
What does dual-layer filtration mean?
Two stacked layers of holes catch fine coffee particles before they reach the cup. That results in a clearer cup with fewer fines.
What dose is the basket designed for?
For 18 g – the most common amount for a double espresso.
Which portafilters does it fit?
Common 58 mm portafilters, including bottomless ones.
What does the reinforced base do?
The 0.8 mm material thickness keeps the base in shape under pressure and prevents deformation and channelling in the puck.
Can I see the product before buying it?
Our showrooms in Bern (Gerberngasse 44) and Zurich (Hagenholzstrasse 50b) show a wide selection, but not our entire range – the display changes. Drop us a quick line at [email protected] before your visit, and we will check whether the product you have in mind is currently there.
Roastery tip
A clean basket helps, but the bean makes the flavour. For dense, sweet espresso, we like to reach for Cozy Chocolate and Nutty Delight. If you like it full and round without any acidity, stick with Very Nutty; for a fruity experience, Wild Peach goes into the grinder. That's our recommendation, one of many.
Click and Collect in Bern (Gerberngasse 44) and Zurich Oerlikon (Hagenholzstrasse 50b).
