How long do the Packs stay fresh? The organic produce living inside each Pack will stay fresh in your refrigerator for 5-7 days. Related articles What can I do with the pulp? Can I fill Packs with my own produce to use with the Juicero Press? How much juice does each Pack yield? Does Juicero use any form of pasteurization? Do I need to add water to make a juice? Comments 0 comments Please sign in to leave a comment.