How long can a protein shake sit in the fridge?

In this brief guide, we are going to answer the question “how long can a protein shake sit in the fridge” with an in-depth analysis of the shelf life of a protein shake. Moreover, we are going to discuss tips to properly store protein shakes.

So without much ado, let’s dive in and figure out more about it.

How long can a protein shake sit in the fridge?

Homemade protein shake lasts for about 72 hours if stored properly in the fridge all the time at or below 40 degrees Fahrenheit in an air-tight container or bottle.

So, you should always store your protein shake at 40 degrees Fahrenheit or below provided that you are going to use it within a few days. Bacterial growth takes place at a faster pace between the temperature of 40 and 140 degrees Fahrenheit, therefore it is always advised to store your protein shake at a lower temperature to preserve its freshness for a long time.

Thus, the cold temperature of the fridge will decrease the rate of bacterial growth and will subsequently prolong the shelf life of your protein shake.

It is worth mentioning that a refrigerated protein shake can separate into layers and it is recommended to reblend it before drinking it.

What is the optimum temperature to store a protein shake?

You should always store your protein shake at 40 degrees Fahrenheit or below. Bacterial growth takes place at a faster pace between the temperature of 40 and 140 degrees Fahrenheit, therefore it is always advised to store your protein shake at a lower temperature to preserve its freshness for a long time.

How long can a protein shake last at room temperature?

Protein shake lasts for about 2 hours when left out of the fridge at room temperature. 

You should discard the protein shake that has been left in open for more than 2 hours as bacterial growth takes place at a faster pace between the temperature of 40 and 140 degrees Fahrenheit, therefore there are greater chances of the protein shake being already contaminated with bacteria when left out for more than 2 hours.

Moreover, if the temperature of the surroundings is about 90 degrees Fahrenheit, then the process of spoilage takes place at a faster pace and it is recommended to discard protein shake that is left out in the open for more than an hour at 90 degrees Fahrenheit.

How long does protein powder last?

Protein powder lasts for about 9-19 months when stored properly in a cool, dry, and dark place away from direct sunlight and heat.

On the other hand, the protein powders that have some additives in them that help in prolonging their shelf life last for about 2 years when stored properly in a cool, dry, and dark place.

It is worth mentioning that the figures mentioned above are the estimated shelf life of the protein powder.

Tips to properly store protein shake

  1. You should always store your protein shake at 40°F or below. Bacterial growth takes place at a faster pace between the temperature of 40°F and 140°F, therefore it is always advised to store your protein shake at a lower temperature.
  1. You should store the protein shake in an air-tight container or bottle, to prevent it from picking up the smells of other food items present in the fridge. It is recommended to store protein shake away from strong-smelling foods.
  1. It is a good practice to store protein shake on one of the shelves of the refrigerator rather than the door as there is a lot of temperature fluctuation at the door of the fridge that can mess up the quality of the protein shake.
  1. Re Blend or shake the refrigerated protein shake before consuming it.

You can read how to make a banana protein shake here.

Different ways to spot bad protein shake

Certain indicators point out a bad protein shake. So you can tell whether or not your protein shake has gone bad by considering its appearance, texture, smell, and taste.

Appearance

If you spot mold or organic growth on your protein shake then the best thing you can do is to toss out such a protein shake.

Texture

If you find that your homemade dairy-based protein shake has become all lumpy or curdled then it is better to discard it.

Smell

If you smell something unpleasant (intensely sour or foul) while taking a sniff test of your protein shake then it is an indication that the protein shake has gone bad and the best thing to do is to discard it.

Taste

If the protein shake has passed the visual and smell test, then you can go ahead and taste it. If you notice an unpleasant or sour taste (in the case of dairy-based homemade protein shakes) after taking a little sip of a protein shake then it is an indication that the protein shake has gone bad. 

If microbes somehow found their way to your protein shake and have spoiled it then the best thing you should do is to discard it.

Conclusion

In this brief guide, we answered the question “how long can a protein shake sit in the fridge” with an in-depth analysis of the shelf life of a protein shake. Moreover, we discussed tips to properly store protein shakes.

Citations

https://www.gainful.com/blog/everything-you-need-to-know-for-proper-protein-powder-storage/
https://www.healthline.com/nutrition/does-protein-powder-expire
https://askinglot.com/can-you-leave-a-protein-shake-in-the-fridge-overnight
https://www.neat-nutrition.com/blogs/news/121072833-can-you-pre-mix-a-protein-shake-qow
https://healthyeating.sfgate.com/can-mix-protein-shakes-leave-overnight-10713.html

Mahnoor Asghar is a Clinical Nutritionist with a bachelor's degree in Nutrition and Dietetics. She is compassionate and dedicated to playing her part in the well-being of the masses. She wants to play a fruitful role in creating nutrition and health-related awareness among the general public. Additionally, she has a keen eye for detail and loves to create content related to food, nutrition, health, and wellness.