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Normcore · Accessory

V4 Spring-Loaded Calibrated Tamper (53.3mm)

The 58mm Normcore V4 in the size for 54mm Breville baskets: spring-loaded for the same pressure every time, a leveling plate, and three springs.

By Dana WhitfieldUpdated October 2026
V4 Spring-Loaded Calibrated Tamper (53.3mm)
9/ 10

Why we love it

This is the tamper for a Bambino, Bambino Plus, Barista Express, Pro or Touch. Breville's 54mm baskets taper, so a true 54mm tamper binds; Normcore's 53.3mm base is sized to clear the taper and still cover the bed. A spring inside sets the pressure, so you press until it bottoms out and every tamp is the same, and the plate that rests on the basket rim keeps it level. Three springs come in the box, 15, 25 and 30lb, with a stand, and the base has a ripple pattern Normcore uses to cut down on a doughnut-shaped extraction.

Pros

  • Sized for Breville's tapered 54mm baskets
  • Spring-loaded: the same pressure every tamp
  • Leveling plate rests on the basket rim
  • Three springs, 15, 25 and 30lb, and a stand
  • Ripple base

Cons

  • Only for 54mm Breville baskets
  • Taller than a plain tamper: check clearance
  • Costs more than the tamper in the box

Specs

Type
Accessory
Brews
Espresso
Power
Manual
Counter space
Compact
Suits
Beginner, Intermediate

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