Espresso baskets come in three doses and two wall types; match the diameter to your portafilter first.
For the full breakdown, see our best Espresso Basket guide.
Most espresso problems trace back to one quiet culprit: the basket. It decides how water meets the coffee, and its dose, wall design, and diameter shape every shot. Sort out espresso basket types — single, double, or triple; single-wall or double-wall; 51 mm or 58 mm — and much of the shot-pulling guesswork disappears. By the end, you will know exactly which basket belongs in your portafilter.
Single, Double, And Triple Dose Baskets
Basket size is measured by dose: the grams of ground coffee the basket is built to hold. Nearly every basket line comes in three sizes.
- Single baskets (about 7–10 g). Meant for one shot but less common in specialty setups, because less coffee means small grind or tamp errors show up faster. Singles are genuinely harder to dial in consistently.
- Double baskets (about 14–20 g). The standard home and cafe choice, with 18 g acting as the de facto specialty default.
- Triple baskets (20 g and up). Built for high-dose, high-volume extraction, so they show up mainly in commercial settings rather than home counters.
Many entry-level machines ship with double-wall baskets for exactly this reason: they turn supermarket pre-ground coffee into a