Rattleware Short Knock Box
Rattleware accessory · $28 · budget tier
Overview
The Rattleware Short Knock Box is the standard budget knock box across most home espresso setups. Rattleware (now part of the Espresso Supply group) has produced this design largely unchanged for over a decade, and the unchanged design is the recommendation — stainless shell, rubber-clad knock bar, low profile.
For a home barista pulling one or two shots a day, the 12-puck capacity is enough for roughly a week before the box needs emptying. The 4.5-inch height also matters more than spec sheets indicate: it slides under the drip tray of a Gaggia Classic or under most under-cabinet espresso machines without forcing the user to lift the unit each time.
The main weak point is the threaded knock bar. The rubber-and-metal bar threads into the lid, and after several months of vigorous knocking the threads work loose. A drop of thread-locker or a quick re-tighten with pliers fixes it. Compared to higher-end alternatives like the Espro Toroid, the Rattleware lacks the slip-resistant base ring — but at a quarter of the price, the trade-off makes sense for first-time buyers.
Pros
- Stainless steel shell shrugs off espresso oils and rinses clean
- Removable rubber knock bar absorbs impact and dampens kitchen noise
- Low 4.5-inch profile slides under most under-counter clearances
- Holds roughly 12 pucks before needing emptying — a full week for one drink a day
Cons
- Knock bar threads loosen over time and need re-tightening every few months
- Round base is less stable than rectangular boxes when knocking hard
- Capacity is small for two-drink-a-day households compared to taller bins
Specifications
| Brand | Rattleware |
|---|---|
| Type | accessory |
| Price (USD) | $28 |
| Price tier | budget |
| capacity pucks | 12 |
| height in | 4.5 |
| width in | 6 |
| material | Stainless steel |
| knock bar material | Rubber |
| removable bar | true |
| primary use | puck disposal |
Best for
- espresso shots
- small-kitchen
- single-cup households
- Breville Bambino
- Gaggia Classic
Frequently Asked Questions
Who is the Rattleware Short Knock Box best for?
The Rattleware Short Knock Box is best suited for espresso shots, small-kitchen, single-cup households. Tags: knock-box, espresso-tools, barista-essentials, stainless-steel.
How much does the Rattleware Short Knock Box cost?
The Rattleware Short Knock Box retails around $28 USD, placing it in the budget tier for accessorys.
What are the main downsides of the Rattleware Short Knock Box?
Knock bar threads loosen over time and need re-tightening every few months Round base is less stable than rectangular boxes when knocking hard Capacity is small for two-drink-a-day households compared to taller bins
What is the ASIN for the Rattleware Short Knock Box?
The Amazon ASIN is B0006H4VOA. You can check current pricing and availability on Amazon directly.
Last updated: 2026-05-12