Fresh juice tastes best and is most nutritious when the juice is at its peak: poured right from your juicer.
Since modern home juicers are easy to assemble and clean, it's not a chore to make a fresh glass of homemade apple juice or carrot juice in your own multipurpose juicer.
If you must store your fresh juice, do so immediately in a small, tightly closed glass jar in the refrigerator. Carrot juice stores reasonably well for a couple days, while cabbage juice turns foul within 24 hours. Don't store cabbage juice for more than an hour or two.