General description Bottomless Portafilter allows you to intuitively observe the coffee extraction process, enhancing your brewing experience. It is suitable for home or office use and makes an exquisite gift for coffee lovers. This portafilter enables better grease production and helps in judging the uniformity of extraction, leading to more delicious coffee. You can easily identify defects and errors in extraction, allowing you to adjust the brewing process for improved taste. Technical specifications Size: 58MM Material: Stainless Steel Color: Black + Silver Measurement allowed error: +/- 1-3 cm Compatibility and accessories Includes 2 x Coffee Portafilter Includes 4 x Filter Basket Installation The handle can be detached for easy cleaning. Can be replaced with a handle of different material for a DIY experience. Usage Observe the coffee extraction process to enhance flavor. Adjust brewing techniques based on the extraction state. Other information Note: Light reflection and