IMS Precision Filter Basket for Verybarista. Big Bang Bottom. Holds 15-18g of coffee Expertly manufactured specifically for DeLonghis 51mm group-head bottomless portafilter. This innovative Big Bang filter basket highlights the sweetness of coffee, provides exceptionally even extraction that softens acidity and gives the body a silky texture, resulting in a beautifully balanced cup. The increased number of holes in the center with tighter spacing creates a more uniform extraction process that allows for optimal flavor development. The filter is designed to enhance your coffee's natural sweetness and balance, making it ideal for those who appreciate a smooth and sweet espresso profile. This is particularly beneficial for medium to dark roasts that often hide their sweetness without proper extraction. VERYBARISTA IMS Precision Filter Basket for DeLonghi Espresso Machine is an essential tool for home baristas who want to achieve amazing results every time you use to ensure a sweeter, more flavorful espresso in every cup. Perfect for use with high quality grinders and high quality beans. Height 25 mm, body: internal diameter 51.2 mm for diameter 51 mm tamper. Made in Italy by IMS Verybarista IMS Precision Filter Basket expertly manufactured specifically for DeLonghi portafilters with 51mm group head. This innovative filter highlights the sweetness of the coffee and provides exceptionally even extraction that softens acidity and gives the body a silky texture, resulting in a beautifully balanced cup. Innovative hole configuration with precisely positioned holes in the center, this basket is designed to guide the flow of espresso more effectively. The increased number of holes in the center with tighter spacing creates a more uniform extraction process that allows for optimal flavor development. This hole pattern was developed by IMS under the name Big Bang. Fits all Delonghi espresso machines with 51mm portafilters.