Grinders · 4 differences · 1 published for only one

J-Max vs K7

1Zpresso and KINGrinder, side by side at the same height.

1Zpresso J-Max grinder KINGrinder K7 grinder
J-Max dimensions not published K7 dimensions not published

Shown at the same height, not to scale: J-Max and K7 do not publish a height.

Images: 1Zpresso, KINGrinder, the manufacturers' product photographs. About our images

Specification

FieldJ-MaxK7
Burr geometry Conical Conical
Burr diameter 48mm 53mm
Burr material not published Steel
Grind range Espresso Turkish to French press
Type Hand Hand
Dosing Manual Manual
Single dosing Yes Yes
Hopper 40g 35g
Adjustment Stepped Stepped
Weight 0.78kg 0.65kg

A lit cell is the better value only where nobody would argue (more capacity, less retention, a lower list price, a feature present) and only when both makers publish the figure. "Not published" is never counted as a loss.