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The Ninja Luxe Café Knock Box is a small countertop bin for knocking spent espresso pucks out of the portafilter. It is molded from insulated plastic, which muffles the thump and keeps grounds contained instead of scattering them across the counter. It is sized for Ninja espresso machines such as the ES501, ES601, ES651, ES655CO and ES701, and its compact footprint suits small kitchens. Generic knock boxes do the same job for less, but few are shaped to sit beside a specific machine line or built to dampen noise. Owners rate it highly and mainly praise the tidy, quiet routine it creates.
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Lowest price we've seen: $29.99 on Nov 10 at Best Buy. Tracked across 5 stores since Nov 10.
Owners rate it 4.8 out of 5 and mostly describe a tidier, quieter puck routine than knocking into a trash can. Complaints are few and center on size and the plastic feel.
The Ninja knock box (model XSKKNOCKBOX) is a durable and practical accessory designed for convenient disposal of used coffee grounds. Made from sturdy insulated plastic, it helps reduce noise and mess during use. Compatible with Ninja espresso machines including ES501, ES601, ES651, ES655CO, and ES701, this black knock box features a compact design with a height of 5.76 inches, making it ideal for home or office setups.
