# 1Zpresso J-Ultra

Manual grinder: 48 mm burrs · Stepped · 1.5 lb (670 g)

The 1Zpresso J-Ultra is a manual coffee grinder with 48 mm burrs. Grind size is set in fixed steps. It weighs 1.5 lb (670 g). It holds 1.2–1.4 oz (35–40 g) of beans.

Specs checked Sep 26, 2026 against 2 sources.

- Brands: [1Zpresso](https://grinderwiki.com/brands/1zpresso/)
- Official page: <https://1zpresso.coffee/j-ultra/>
- Grinder Wiki: <https://grinderwiki.com/specs/1zpresso-j-ultra/>

## Specifications

### Basics

- Type: Manual [1]

### Burrs

- Burr size: 48 mm [1]

### Grinding

- Adjustment: Stepped [1]
- Adjustment step: 8 microns per click [1]

### Capacity & size

- Hopper: 1.2–1.4 oz (35–40 g) [2]
- Weight: 1.5 lb (670 g) [2]

## Quick answers

**What burrs does the 1Zpresso J-Ultra use?**
48 mm burrs.

**Is the 1Zpresso J-Ultra stepless?**
No. It has stepped settings.

**How much does the 1Zpresso J-Ultra weigh?**
1.5 lb (670 g).

**How many beans does the 1Zpresso J-Ultra hold?**
Up to 1.2–1.4 oz (35–40 g) in the hopper.

## Sources

1. [1Zpresso J-Ultra official product page](https://1zpresso.coffee/j-ultra/) — 1zpresso.coffee · Checked Sep 26, 2026
2. [1Zpresso J-Ultra official comparison table](https://1zpresso.coffee/j/) — 1zpresso.coffee · Checked Sep 26, 2026