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The espresso knock box is a barista tool on a par with the tamper and milk pitcher. For those who enjoy espresso at home every day, this is a must-have item for efficiently disposing of coffee grounds after espresso extraction. The accumulated coffee grounds can be dried and reused as a deodorizer or as plant fertilizer. The Coffee Knock Box is very easy to use. After espresso extraction, simply tap the portafilter filled with coffee grounds against the knock box bar to dispose of the coffee grounds without getting your hands dirty. The knock box is made of high-strength plastic. It is rust-proof, shatter-resistant, and highly impact-resistant. The knock bar is made of stainless steel and covered with thick rubber to prevent damage to the portafilter. The knock box is shaped like a cut-out cylinder. This prevents grounds from scattering around, ensuring hygienic use. This knock box is also highly heat-resistant. It can withstand the extremely high temperatures of coffee grounds after espresso extraction. The tightly wrapped perimeter prevents grounds from scattering around. The bottom is reinforced with anti-slip rubber, making it difficult to slip no matter where you place it. The knock bar and anti-slip rubber are removable and washable! You can always keep it clean. It's perfect for both commercial and home use. The stylish design makes it easy to fit in anywhere. It's small, so you won't have any trouble finding a place to store it.