MHW-3BOMBER Square Knock Box 1.2 l – knock out your coffee puck quietly and cleanly
A short, dull knock, and the coffee puck drops into the box. The silicone-covered knock bar absorbs the impact instead of clattering loudly. The Square Knock Box from MHW-3BOMBER in Black holds 1.2 litres and, with its square shape, sits compactly next to your espresso machine.
The box is made of durable ABS plastic, silicone and stainless steel and, according to the manufacturer, suits most espresso machines. It stands freely and takes up little counter space.
Features
Silicone-covered knock bar
The silicone-covered knock bar dampens impact and noise and protects your portafilter when you knock out.
Bevelled opening
The curved, bevelled opening keeps the grounds inside the box and prevents them from splashing over the rim when you knock out.
1.2 litres for everyday use
The box holds around 1.2 litres, about 12 to 15 coffee pucks according to the manufacturer. How many it is for you depends on your dose and on how wet the pucks are.
Stable and easy to clean
The non-slip base keeps the box in place while you knock out. To clean it, empty the box, rinse it briefly or wipe it out with a damp cloth and let it air-dry.
In our experience, it is best to empty a knock box daily; that keeps it clean and the grounds are easy to dispose of, for example in the compost.
At a glance
| Brand | MHW-3BOMBER |
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| Type | Knock box, square |
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| Capacity | around 1.2 l, about 12–15 pucks |
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| Material | ABS plastic, silicone, stainless steel (SUS304) |
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| Colour | Black |
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| Dimensions | around 125 × 125 × 135 mm |
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| Weight | around 435 g |
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| Features | Silicone-covered knock bar, bevelled opening against splashes, non-slip base |
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| In the box | 1 × Square Knock Box 1.2 l |
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Who it’s made for
For everyone with an espresso machine who no longer wants to knock out their pucks over the bin. For small kitchens with little space next to the machine. And for anyone who likes to work quietly early in the morning while the rest of the house is still asleep.
If you are still looking for the right machine or grinder to go with it, our coffee machine advice tool helps you choose.
What goes with it
You’ll find more models under Knock boxes and knock-out containers and Knock boxes and drawers, and more from the brand under MHW-3BOMBER.
Tampers in different versions, for example from Normcore or Weber Workshops, are under Tamper, and tamping mats and more accessories under Barista equipment and tools. And for the next shot: freshly roasted coffee beans from our roastery.
Frequently asked questions
How much does the Square Knock Box hold?
The box holds 1.2 litres. How many coffee pucks fit depends on your dose and on how wet the pucks are.
Is the box loud when knocking out?
The knock bar is covered in silicone. This dampens noise and impact and protects your portafilter.
How do I clean the knock box?
Empty the box and rinse it briefly or wipe it out with a damp cloth. Then let it air-dry.
Will the box suit my machine?
The knock box stands freely next to the machine and is suitable for most espresso machines. With its compact, square shape it also fits into small kitchens.
How quickly will my order arrive?
Delivery takes 2–4 working days, throughout Switzerland and to Liechtenstein. Click & Collect is available in Bern and Zurich.
Can I see the knock box before buying?
Our showrooms in Bern (Gerberngasse 44) and Zurich (Hagenholzstrasse 50b) show a wide selection, but not our entire range – the display changes. Just check with us beforehand whether the knock box is currently there.
Tip from our roastery: In our experience, the puck comes out most cleanly when you knock out the portafilter right after the shot, with one short, firm knock on the bar rather than several hesitant ones. For the next espresso we like Cozy Chocolate and Nutty Delight, full-bodied, chocolatey and nutty. Very Nutty, a strong robusta from India, brings maximum body. If you would like to discover a fruity note, you will find it in Wild Peach. That’s our recommendation, one of many.
