Before you store fresh wheatgrass, make sure it is totally dry. Any moisture can cause it to spoil more quickly. Transfer it to an airtight container or tightly sealed food-safe bag and place it in the refrigerator, where you can keep it for up to 7 days. u003cbr/u003eu003cbr/u003eIdeally, you should then juice the amount you need for one shot and u003cstrongu003edrink it straight awayu003c/strongu003e, rather than juicing it all in one go ahead of time. This is in order to preserve its nutrients, which begin to deplete as soon as it is exposed to air. u003cbr/u003eu003cbr/u003eThat being said, we all have busy lives and it is not always easy to find the time to make wheatgrass juice on a daily basis. u003cbr/u003eu003cbr/u003eIn that case, u003cstrongu003eyou could certainly choose to freeze someu003c/strongu003e. Just remember that this will kill off some of the enzymes it contains and may also reduce the benefits of the chlorophyll. u003cbr/u003eu003cbr/u003eTry freezing wheatgrass juice in ice cube trays, as each cube will be the ideal size for a shot. Ideally, try to use them within seven days - after that, the nutritional value of the juice is likely to decline rapidly.