How long will a protein shake last in the fridge?

In this brief article, we are going to answer the question,“How long will a protein shake last in the fridge?”

How long will a protein shake last in the fridge?

Protein shake lasts 72 hours in the fridge. Having said that, throughout the course of this time period, the flavor of any real ingredients (including such fruits and veg) may become less robust.

If you want the protein shake to have the finest flavor, consume it within 12 hours of chilling it in the refrigerator. If you forget to put your protein shake in the refrigerator, you will only have around two hours before it is no longer safe to consume. 

Foodborne illness may result from ingesting a protein drink that has been consumed after its prime time has passed.  The Protein shake that has been cooled and stored in the refrigerator can be consumed safely for up to three days.

However, due to the fact that separation occurs, you will have to re-blend or start shaking the beverage before drinking it.Making protein shakes is not complicated. An unrefrigerated prepared shake has a shelf life of up to two hours when it is safe to consume.

Can whey protein itself go bad?

There is a chance that protein powder will spoil. The majority of companies suggest using date and/or expiration dates on their packaging. Protein powder should be kept in an airtight container in a cool, dry location.

Protein powders are susceptible to mold growth if they are exposed to heat, moisture, or air. Research shows that the shelf life of whey protein powder is 9–19 months when kept in typical storage conditions. For up to two years, many protein powders contain ingredients that help keep them fresh.

How long is the shelf life of a protein shake if it is kept at room temperature?

When stored at room temperature, a protein shake will become spoiled in slightly over two hours. The shake’s protein content, in addition to the quality of any dairy components, will start to deteriorate.

Not only will the flavor of the shake change in a discernible way, but there is also a significant rise in the risk that it may cause an upset stomach. This is the situation with shakes that are prepared using whey protein and those that are prepared using proteins derived from plants.

Immediately after being combined, protein powders begin to lose their potency and might last just two to four hours at room temperature. Shakes that have been left out longer than this are still edible, but the taste and digestion risk are much higher than with freshly made shakes. 

How Do You Know Whether Your Protein Shake Is Still Good to Drink or Has Gone Bad?

The fragrance is the most common indicator that a protein drink has lost its freshness and should be thrown away. 

As the protein degrades, the shake on its own will begin to smell rancid as a result. If there are no symptoms that the protein has gone bad, such as a rotten smell, bitter taste, color changes, or clumping, then it is probably okay to eat the protein within the expiry date. 

If you see any of these warning signals, it’s time to replace your old tub.

If the smell of your shake has altered from how it smelled when it was originally mixed, you should dump it, properly clean the cup, and then prepare a fresh shake.

  1. Rotten, rotten scent.
  1. A taste that is bitter or otherwise odd.
  1. Slimy texture.
  1. color that is either darker or lighter than when first combined together.

A protein shake that has gone bad will have a bitter flavor, a slimy feel as you sip it, a change in coloring, and a different consistency overall. 

Other symptoms include these. A protein drink that has begun to go bad may have a different color to it than it had before you even made it, either becoming lighter or darker.

How Long Does a Protein Shake Last Once Mixed?

The contents in your protein shake, as well as how you keep it, will determine how long it will be good for consumption. The following is a brief guide on storing protein shakes. The maximum period of time that a protein drink can be safely stored in the refrigerator is 72 hours.

The maximum amount of time before a protein shake made with fresh ingredients that has been refrigerated starts to taste noticeably bad is twelve hours.The greatest amount of time that a protein drink can be safely refrigerated is two hours.

If you follow these instructions, you will reduce your risk of being ill as a result of a bad shake. 

Consuming freshly prepared protein shakes will provide you with the beverage that has the best flavor and is the safest option. On the other hand, storing your shake in the refrigerator for a couple of days won’t do it any harm at all.


In this brief article, we answer the question,“How long will a protein shake last in the fridge?”

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Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.