If you’re a fan of espresso, and you’ve got a porta-filter setup at home, then you should consider a knock-box an essential purchase. Without one, you’ll have no simple means of ejecting those spent pucks when you’re done making your coffee – you might even be reduced to scraping them out with your fingers – which is not much fun! Fortunately, there’s a better way. By simply giving your filter a good, firm knock against a suitable knock-box, your grounds will come spilling out. Here you’ll find exactly such a device, courtesy of Crema. It comes with a rubberised bar spanning the middle, which is what actually absorbs the impact, and a bin just beneath which is what collects the grounds. This is the smaller of two versions of this device, standing at around 110mm tall. It’s perfect, therefore, for those looking to create coffee for just themselves and a friend or two. Once it’s filled, you can easily deposit the old grounds into your kitchen bin and begin anew. This knock-box comes in a choice of three different colours. There’s red, there’s dark grey, and there’s black, as displayed by the one you see here. Pick whichever makes the best match for your kitchen!