How long can wheatgrass juice be refrigerated?

This is what I learned from Dr. Ann Wigmore: "The best time to cut wheatgrass in order to have the highest nutritional content with the best taste, comes from grass cut when it is about 6-10 inches tall. When the wheatgrass reaches its nutritional peak, we cut the whole tray and package it in a storage bag in the refrigerator where it lasts up to 10 days. However, we deliver to the greater Cincinnati, Ohio area the day after our wheatgrass is cut, providing over a week of peak freshness in your home. There is no benefit to keeping a tray and cutting each time you want a shot to drink." Go to huntergreengrass.com to learn more.