Espresso Knock Boxes For Home Coffee Bars
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An espresso knock box is a dedicated container for collecting used coffee pucks from your portafilter. It typically has a padded knock bar across the opening, giving home baristas a convenient place to empty grounds between shots.
Remove the portafilter from your espresso machine and turn the basket downward over the knock box. Tap the portafilter against the padded bar to release the puck, then wipe the basket before preparing your next shot.
Empty the collected grounds daily and rinse away any residue. Wash the container and removable knock bar with warm water and mild dish soap, following the manufacturer's care instructions, then let the parts dry before reassembling.
Espresso knock boxes commonly feature stainless steel or plastic containers, with rubber or silicone padding around the knock bar. Many also include a rubberized base and a removable bar for easier cleaning.
Put spent coffee pucks in the trash or add them to a home compost pile alongside dry materials such as leaves or shredded cardboard. If you use a municipal compost program, check its accepted-materials list. Keep coffee grounds out of sink drains, where they can contribute to clogs.







