A popular question from new juicers is how long can I store my juice? The answer is simple and straight to the point. Do not store your juice, consume it immediately after juicing. That way you get the maximum benefit without losing anything.
However, if you absolutely must store your juice then how long it will last depends on a variety of different factors including the type of juicer used, what fruits and vegetables you are juicing, the temperature you store it at, what you store it in and how soon after juicing you refrigerate it.
Let’s take an in-depth look at exactly what causes juice to degrade and how to get the longest possible storage time with minimal effect on the quality of the juice.
The amount of heat created during juicing will depend on which type of juicer you are using and the speed at which that juicer juices. Centrifugal and Masticating juicers both generate heat, but centrifugal juicers generate more heat because they rotate faster than masticating juicers. This is one distinct advantage of masticating juicers.
Heat damages nutrients, but enzymes are particularly sensitive to heat. This is part of the reason long-life juices you can buy at the store aren’t as good for you as homemade juice. To increase shelf-life they have to pasteurize (which kills bacteria by heating), but that process also damages the beneficial enzymes. You really want to consume unpasteurized, raw juices.