Disclosed are advantageous methods and devices for producing fruit juice or vegetable juice, comprising a mill (50) for crushing the fruit so as to form a fruit must and a subsequent apparatus (90) for separating the fruit must into fruit juice (130) and solid fruit residue (140). In order to produce the fruit must, the fruit is crushed using inert gas that is fed through an inert gas supply tube which is optionally located at the inlet of the mill (50) and/or preferably at a pre-crushing apparatus (30) located upstream, and/or the fruit must can be subjected to a negative pressure treatment by positioning an adequate evacuation apparatus encompassing a vacuum receptacle (60) and a vacuum pump (70) before the fruit must is delivered to the separating apparatus (90) for the separation step.
