Thinking about making your morning juice in batches for the week? Sadly, that may not be a great idea.
Raw juice lasts between 24 hours and 5 days depending on how it’s made. The heat from a centrifugal juicer causes the oxidation process to increase in speed, this process is reduced if your juice is made in a masticating or twin gear juicer.
You should aim to drink the juice as soon as it’s been made to maximise the nutritional value.
How Long Your Juice Will Last In The Fridge
How long your juice will preserve in the fridge depends on the type of juicer you’ve used in the extraction process.
- Centrifugal Juicer = 24 Hours
- Masticating Juicer = 48 hours
- Twin Gear Juicer = 4 – 5 Days
The reason the preservation varies between juicers is due to the oxidation process (more on this below). Centrifugal juicers are the most affordable juicer to buy, however, the extraction of the juice creates heat which fast-tracks the juices oxidation process.
It’s for this reason many people prefer a cold press also known as a masticating juicer.
Of course, all these timelines depend on storing your juice correctly in the fridge. The key to this is ensuring your fridge is nice and cold, you can add a layer of protection to this temperature by storing your juice in a thermal container to help maintain that.
You also want to ensure that there’s as little air in your container as possible, this minimises the growth of bacteria.
If you would like to store your juice for longer you can do so in the freezer. In the freezer, juices can be stored for up to six months, while this doesn’t stop the oxidation process it does help to slow it down.
Why Smoothies Can Be Preserved For Longer Than Juice
As fibre helps to slow the oxidation process, smoothies can often naturally be preserved in the fridge for longer than juices.
However, the oxidation process still begins as soon as the fruits are blended together. For maximum nutritional benefit, you should look to drink your juice or smoothie as soon as it’s made.
What Is Oxidation
So, what is oxidation and why is it so damaging to our blended or juiced fruits and vegetables?
Oxidation occurs as a result of the cell wall being broken on your fruits and vegetables which leaves them exposed to air.
This happens when blending, juicing or even simply cutting your fruits and vegetables and can often be seen through discolouration (when you take a bite out of an apple and leave it on the side for example).
How To Tell If Your Juice Has Gone Bad
You’ll be able to tell if your juice has gone bad from the change in smell and colour. It may also show signs of mould.
If you’re unsure, I always recommend playing it safe and throwing it away and making a new one to prevent any harmful bacteria causing food poisoning.
Be sure to label your juices if you plan to make them and preserve them for later as this will help you to see how long the juice has been stored for which should help to indicate whether or not the juice is safe for consumption.
How To Preserve Your Juice
None of these methods will completely stop the oxidation process of your juice and the nutritional value will continue to be lost. However, this should be at a significantly slower rate.
Keep The Juice Cold – Keeping your juice cold is a great way of preserving it for longer. You can do this by altering where in the fridge it’s stored or storing it inside a thermal protective container.
Add Lemon Juice – Lemon juice helps to slow down the oxidation process as it’s full of ascorbic acid and has a low pH level.
Minimise Exposure To Air – You can do this by filling your container as much as possible or by using a vacuum sealer to remove the air from the container once filled.
Use A Slower Juicer – Consider trading out your centrifugal juicer for a masticating or twin-gear juicer which should add preserve your juice for up to five times longer.