Whilst fresh is definitely best, and drinking your smoothies fresh from the smoothie maker is certainly the way to get maximum possible benefit from all the vitamins and trace minerals that are contained in every delicious glass full, there is always going to be a time when you want to be able to store surplus smoothie mixture. You may have made more than you need, you might have wanted to use up surplus fruit or berries from the garden before they get over-ripe or maybe, you just wanted to preserve a small quantity to take to work or school to enjoy later in the day.
The first and perhaps easiest way to extend the life of your smoothie is to reduce oxidation by adding vitamin C. This is very easy to do, you can simple squeeze in some fresh lemon juice. As an alternative, you can add a small quantity of powdered vitamin C which you can buy online or from your local health food store.
Smoothies and juices can be stored in your refrigerator for several hours and will retain the fresh juice color provided that you cover and chill them as soon as you possibly can after making the mixture. The easiest way to do this is to pour it into a glass jar or pitcher, filling it as close to the brim as possible to minimize the amount of air in contact with the mixture. Seal the mixture in by adding a lid or plastic wrap (cling film) covering. As an alternative, you can also store the mixture in a sterilised* vacuum flask (thermos) which is a great way of keeping your smoothie cool and fresh if you are taking it to work or school.
*To sterilise a vacuum flask you can either, use baby bottle sterilising solution, dental plate sterilising tablets (steradent or similar), bicarbonate of soda or simply wash the flask inside with hot soapy water and use a bottle brush before pouring in boiling water and allowing it to cool inside the flask.
Try freezing very small quantities of left over smoothies into ice cube trays or ice lolly molds (which makes a delicious, healthy and refreshing smoothie ice lollies for children on a hot day – and not an E-number in sight!).
If you have a glut of a particular fruit in the garden, it is probably best to freeze the fruit itself for adding to smoothies later – as most modern smoothie makers cope well with blending frozen fruits and ice. However, if you wish you can freeze single juices in suitable containers ready to blend into your smoothies when you are ready. This option is helpful if freezer space is at a premium as pureed fruit takes up less space than whole berries or fruit chunks. Smoothies are so delicious, tasty and healthy and it’s great to know they are so economical too – as you do not need to waste a single drop!