MHW 3Bomber Impact Tamper

The Astra Impact Tamper is a pressure-controlled tamper with a preset pressure of 13.6 kg. When the preset pressure is reached, a mechanical signal sounds as feedback and the tamper releases the pressure again. After several tests, MHW 3Bomber has established that at a constant pressure of 13.6 kg, the extraction rate is almost the same for different quantities of powder and different extraction times. The outer ring, which lies flat on the portafilter, ensures that the tamper is always pressed vertically downwards. The tamper is simply placed on top and pressed downwards, the spring pulls the base back up again.
This tamper fits perfectly on 58 mm portafilters. Through repeated testing, MHW 3Bomber has determined that 58.5 mm is the perfect size for levelling tools and tampers. These fit exactly into 58 mm portafilters and reduce wastage of coffee powder.
The tamper has an ergonomic handle and sits comfortably in the hand. In addition, the base has concentric grooves, which means that more coffee powder comes into contact with the water, resulting in better extraction.
The entire tamper is made of high-quality materials. The handle and the middle section are made of aluminium alloy, the base and the spring are made of stainless steel (SUS304). A replacement spring is included. The entire tamper can be dismantled and is therefore easy to clean.
With this tamper, perfect coffee extraction can be achieved when used correctly.
Scope of delivery:
1x Impact tamper, Astra series
1x replacement spring
1x silicone cap