KNOCDIC Curve Square high-capacity espresso knock box in matte white with a contrasting charcoal grey interior lining and real oak bar.

Emptying a spent coffee puck from an espresso portafilter into a large sculpted white and black square knock box.

A pastel yellow curved square coffee knock box styled neatly alongside a high-end home espresso machine grinder setup.

Size guide and capacity infographic detailing the large scale storage of the Curve Square coffee waste container.

Product design feature breakdown graphic showing the natural oak bar, non-slip base, and curved edge finish of a large coffee bin.

Color options chart displaying 27 custom matte, metallic, galaxy, and marble colors for the KNOCDIC knock box and espresso machine accessories collection.

COFFEE KNOCK BOX

The Curve Square Espresso Knock Box with Oak Bar

£52.29 GBP

Product Description

Where high-volume capacity meets fluid, modern architecture. The Curve Square Espresso Knock Box features a generously scaled interior wrapped in softly rounded, sculpted contours—perfect for heavy espresso routines, multi-coffee households, and busy home coffee bars.

✓ High-Volume 22-Puck Capacity: Deep interior compartment securely contains 20–22 spent espresso pucks, eliminating the need for frequent trips to the main kitchen bin.
✓ Softly Rounded Square Profile: Combines the space-saving utility of a square frame that sits flush in corners with elegant, curved edges that soften your espresso bar's aesthetic.
✓ Forward-Positioned Oak Bar: Ergonomically set forward to create an expanded clearance zone at the rear of the bin, allowing used pucks to fall cleanly without messy splattering.
✓ Premium Removable Liner: Features an integrated inner box liner that slides out completely, making clean-up, rinsing, and disposal incredibly quick and effortless.
✓ Dual-Tone Customization: Individually crafted to order in the UK with the ability to pair your favorite outer chassis shade with a contrasting inner lining across 27 signature colours.

Size & Specifications

Capacity: Holds approximately 20–22 standard used espresso pucks
Craftsmanship: Precision engineered with a refined, smooth matte body and natural hardwood grain details.

Materials & Care

Body & Inner Lining: Premium plant-based, eco-conscious PLA
Knock Bar: Genuine Solid Oak Hardwood
Care Instructions: Hand wash only with cool or lukewarm water. Simply remove the inner sleeve to rinse. Wipe clean with a soft cloth and dry thoroughly.
⚠️ Do not place in the dishwasher, microwave, or expose to high-heat sources.

Product variants

✔ Made to order in 1–4 business days
Free UK shipping

✳︎ Important note

Eco-Friendly & Made to Order: Each KNOCDIC® knock box is 3D-printed using plant-based PLA. This creates a lightweight, durable body with a subtle, textured finish that is unique to the handmade process.

Why we 3D print our products →

Pairs well with

The Curve Square Espresso Knock Box with Oak Bar

Matte Scarlet Red / Matte Scarlet Red

£52.29 GBP

Matte vs galaxy

Decorative coffee knock box with a oak knowck bar

Find the Right Knock Box for Your Setup

A textured olive green compact espresso knock box placed perfectly on a home barista coffee bar station.

Designed to Match Your Coffee Setup

Choose the size and colour that fit your machine, counter space, and daily espresso routine.

FAQs

Everything you need to know before choosing your knock box.

What materials are your coffee tools made from?

All our knock boxes are made using PLA, a plant-based material chosen for its strength, smooth finish, and vibrant colour options.

Are 3D printed tools durable enough for daily use?

Yes. Our tools are designed for daily home espresso use. To keep them in the best condition, avoid high heat, dishwashers, and prolonged soaking.

Can I customise the colour or engraving?

Yes. Many products are available in a range of colours, and custom engraving is available on selected items. For custom engraving, please leave us a message.

Do your knock boxes fit all espresso machines?

Our knock boxes come in multiple sizes to suit different setups. If you use a larger portafilter or have limited counter space, check the product dimensions before ordering.

Are your knock boxes dishwasher safe?

No. Our knock boxes are made from PLA, so dishwashers, high heat, and steam may cause warping or surface damage. Hand-wash with mild soap and room-temperature water, then dry thoroughly.