These coffee tampers are heavyweight stainless steel coffee tampers, each having a high-gloss black finish on its elegant handle. The tamper handle is topped with a satin-steel cap that matches the satin-steel tamper base. The coffee tamper base has a tapered conical dropoff that gives a beautiful transition from its glossy black handle to the vertical drop that goes to the tamping surface. This coffee tamper feels good in the hands, and it's an elegant addition to your coffee bar.
Most standard espresso machines (semiautomatic and automatic) use 57 mm or 58 mm coffee tampers. Many people want coffee tampers that fit snugly into their portafilters, and some people prefer a millimeter (or so) of wiggle room within the portafilter basket, so that they can more easily manipulate the coffee tamper while tamping. But note that coffee tampers don't get pushed down into the bottom of the filter basket (which can be slightly tapered) when you're tamping, because the basket is full of coffee. That's why you're tamping it!
So when sizing the diameter for a coffee tamper, it's the inner diameter at the top of the filter basket that you'll need to measure to size your tamper correctly. At The Coffee Brewers, we tend to believe in a firmer fit in coffee tampers (i.e., 58 mm) to minimize loose particles in the portafilter basket. The Black Beauty coffee tamper will give you this - beautifully.
You should read our article on "How to Use a Coffee Tamper Correctly for Uniform Extractions" if you're not exactly sure how to use coffee tampers. Note that "How to Use a Coffee Tamper Correctly for Uniform Extractions" was written with the professional barista in mind, so there are various moves described that sound complicated, but these have more to do with not touching the coffee directly with your hands than with pure function. Using coffee tampers correctly is not complicated. Black Beauty coffee tampers give you lots of weight to work with. They're solid pieces of art, and they're great coffee tampers to use. They feel good in the hands.
We recommend that you do not wash coffee tampers in the dishwasher, because over time, the dishwasher will damage their beautiful glossy finishes. To clean coffee tampers correctly, simply wipe them down with a damp cloth. You wouldn't want to damage the gloss on these coffee tampers. Your coffee tamper should not be "dirty" in the first place. You wouldn't "wash" a work of art, would you? So don't "wash" your coffee tampers.