Drink your green smoothie masterpiece right away to enjoy the best textures and flavors. Sometimes life gets in the way, of course. If that happens, you can stash any leftover smoothie in the fridge in an airtight glass jar for up to one day. For longer term storage, you can freeze it in an ice cube tray, transfer the cubes to a zip top bag when set, and then re-blend it with an extra splash of soymilk when ready to serve.