Refrigerate it: If you want to drink your smoothie within a day or two, you can refrigerate it. Pour the smoothie into an airtight container and store it in the fridge. When you're ready to drink it, please give it a good shake or stir to recombine the ingredients, as they may have separated while in the fridge.
Freeze it: If you want to store your smoothie for longer than a few days, you can freeze it. Pour the smoothie into an airtight container and place it in the freezer. When you're ready to drink it, thaw it in the fridge or at room temperature until it reaches your desired consistency. You may need to give it a good stir or blend it again before drinking.
Make single-serving smoothie packs: Another option is to portion the smoothie ingredients into individual servings and store them in the freezer. When you're ready to make a smoothie, grab a serving from the freezer, add your liquid base, and blend.
It is generally best to consume smoothies within a few days of making them, as the quality and nutritional value can degrade over time. However, freezing them can be a good way to have a convenient and healthy snack on hand when you need it. Just be sure to label and date your smoothie packs so you know how long they have been in the freezer.