How Long Can You Keep a Smoothie in the Fridge?

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You’ve probably wondered how long can you keep a smoothie in the fridge, especially if you’ve been trying to get into meal prep. After all, it’d be much easier if you could just prepare your smoothies beforehand and have them ready to go throughout the week.

However, because of their ingredients, smoothies aren’t meant to last a long time, no matter how you store them.

Fortunately, you can prolong the life, taste, and quality of your smoothie by properly storing it in the refrigerator.

how long can you keep a smoothie in the fridge

 While you can store your smoothie in the fridge, you can’t expect it to last for weeks on end.

At most, your smoothie will last approximately 1 to 2 days. After that, you’ll start to lose flavor, nutritional value, and overall quality.

That's why there are certain methods and techniques you should follow to help extend the lifespan of your smoothie. Read on to learn more.

Avoid too much sweetener

We all like to add a little kick to our smoothies. Unfortunately, many people go a little overboard and end up adding too much sweetener.

While they think this may enhance the flavor, it can actually reduce the lifespan of the smoothie. That's because most sweeteners reduce natural flavor. In addition to this, they can be harmful to your health.

If you want to enhance the sweet taste of your smoothie, avoid artificial substances.

Instead, go for all-natural flavor-enhancing ingredients like fresh fruit and vegetables. These will not only boost the flavor, but you’ll also notice that the smoothie will last longer.

Avoid fruit juice

When we say to add fresh fruits to your smoothie, we don't mean using fruit juice.

Despite the healthy-sounding name, fruit juice is typically packed with artificial ingredients, especially sugar. You’ll have difficulty finding a fruit juice that contains even half the amount of nutrition and vitamins found in the original fruit.

We recommend using water or a different healthy liquid like coconut water or almond milk as an alternative to fruit juice.

Besides being full of natural, healthy ingredients, they will also preserve the integrity of the entire smoothie so that it has a longer lifespan.

Always check the ingredients of the liquids you choose prior to using them as a smoothie mixture. 

Blend properly

A smoothie needs to be properly blended in order for it to last. You don’t want a smoothie that is so thin that it basically turns into a liquid, and you also don’t want to neglect the blending so that it’s impossible to drink through a straw.

Mix up your smoothie to just the right consistency and if you find that you need to make it thicker or thinner, we advise you to add extra ingredients until you have a healthy balance.

Don’t add too much fruit

We mentioned earlier that you should add fruit to improve the quality of a smoothie. But there is such a thing as too much of a good thing.

Fruits may be packed with nutrients, but they are also full of high amounts of sugar as well as calories. Too much sugar in your fruit (and your smoothie) can cause them to deteriorate much more quickly. Always make sure you’re using a healthy balance of fruit and liquid in your smoothie.

Reduce oxygen in the smoothie

One of the primary reasons smoothies go bad is due to the process of oxidation.

This occurs when oxygen reaches the fruit and causes it to begin to deteriorate. You may notice this process when you’re eating an apple and the insides begin to turn brown. Now imagine that happening to your smoothie.

You can reduce the chances of oxidation by filling your smoothie to the very top so that there is little to no oxygen in the container.

You also want to use an airtight (preferably glass but you can use plastic also) container to seal the mixture off from outside air. This will preserve the integrity of the smoothie and help it last longer without you worrying about it losing its taste.

Final thoughts

Making a smoothie should be a fun, healthy experience. Unfortunately, most people are unaware that there is a science to the process.

If you do not heed this advice and improperly store your smoothie, you can risk missing out on many nutrients and you might also end up drinking a spoiled beverage. 

Overall, our main advice is to drink your smoothie as soon as possible, or at least within 12 hours. If necessary, you can keep it in your refrigerator for up to 2 days, but if you want that true freshness, it’s better not to wait.

Olivia Watts

Set designer assistant Olivia was a meat-and-potatoes girl until one of her hipster co-workers on the latest superhero film handed her a lunch that came in a cup with a fat straw. With one life-changing sip of that fruit smoothie, Olivia tossed away her hammer, started up her own business, and now manages six smoothie franchises.