High-Extraction 58mm 18g Variable Basket

This 58mm espresso filter basket is made for bottomless portafilters and rated for an 18g dose. Its defining feature is the variable depth architecture — where the basket floor and sidewall thickness vary deliberately to modulate flow resistance and promote longer, more uniform water contact with the coffee grounds. Precision-machined from stainless steel, it maintains exact dimensional repeatability batch after batch. Compatible only with 58mm bottomless portafilters, it enhances extraction efficiency without increasing bitterness or drying out the cup. Users report improved clarity, layered sweetness, and reduced sourness — particularly noticeable when using medium-roast single origins or lighter blends.