White opened refrigerator filled with fruits, sodas, water, and condiments

Can You Keep Whey Protein Shakes in the Fridge?

Many individuals turn to whey protein shakes as a convenient and effective supplement to pursue fitness and muscle recovery. However, questions arise when it comes to storing these products. So, can whey protein shakes be kept in the fridge?

Can You Keep Whey Protein Shakes in the Fridge?

Yes, you can keep whey protein shakes in the fridge. Refrigerating whey shakes can help keep them fresh while allowing you to prepare them ahead of time. Whey powder is generally mixed with liquids, such as water or milk, and these liquids can be refrigerated.

However, while your shake will remain safe to drink for multiple days stored in the fridge, you should consume your protein shake within 24 hours, to avoid loss in potency. When storing whey shakes in the fridge, use a sealed container to prevent contamination. 

Woman pouring a scoop of whey powder in a plastic container

Remember to also refer to the instructions on your particular whey powder brand and whatever liquid you use to make the shake. They’ll most likely include information regarding the recommended consumption time. If not, check for any signs of spoilage like:

  • Off odors
  • Strange texture
  • Unusual taste.

How to Store Whey Protein Powder

Storing protein powder properly is important to maintain the freshness and effectiveness of your shakes. Here are some tips and guidelines to help you store your whey powder to ensure it maintains its potency for as long as possible:

Store in a Cool, Dry Place

Whey should be stored in a cool and dry environment. Excessive heat and humidity can degrade its quality by leading to protein denaturation. Choose a storage location away from direct sunlight, such as a pantry or cupboard. Also, ensure that you examine the whey from time to time to ensure that it hasn’t been exposed to harsh storage conditions over time.

Keep It Properly Sealed

Whey protein powder usually comes in a resealable container or pouch. So, seal it tightly after each use to prevent moisture and air from entering. If you’ve transferred your whey powder to a different container, ensure it is airtight.

Avoid Storing in the Refrigerator or Freezer

While storing whey protein powder in the refrigerator or freezer may seem logical, it’s unnecessary. It can introduce moisture when the container is taken in and out of these cold environments. It’s best to store it at room temperature.

Avoid Temperature Fluctuations

Temperature changes can cause condensation inside the container, leading to clumping and spoilage. Avoid storing whey near appliances that generate heat or areas prone to temperature fluctuations, such as ovens or refrigerators. 

Store Away from Strong Odors

Whey powder can absorb strong odors which can affect its taste and smell. Therefore, avoid storing it near spices, cleaning products, or any other substances with strong smells.

Whey powder mixed with red raspberries and fruits in a clear glass bottle and metal straw

What Can You Mix a Whey Protein Shake With?

What you mix your whey shake with can either lengthen or shorten its shelf life when stored in the refrigerator. Therefore, it is important to choose ingredients that are safe when stored in the fridge. Here are a few of my favorite things to use when preparing my whey protein shakes ahead of time:


Mixing whey with water is a popular choice as it is low in calories and provides a simple, refreshing taste. It is a good option for those aiming to keep their calorie intake low or looking for a quick and easy way to consume their protein shake. Shakes mixed with water can be stored in the refrigerator safely. 


Mixing whey with milk, whether it’s cow’s milk, almond milk, soy milk, or any other milk alternative, can add creaminess and enhance the flavor of the shake. Milk also provides additional nutrients like calcium, vitamin D, and sometimes extra protein, depending on the type of milk chosen. As long as your milk is not past the recommended use-by date, it is completely safe to store in the fridge.

Fruit Juice

Adding fruit juice, such as orange or apple juice, to your whey shake can provide a burst of flavor and natural sweetness. However, it’s important to note that fruit juices often contain added sugars, so be mindful of the overall sugar content in your shake.


Mixing whey with yogurt creates a thicker and creamier shake. Greek yogurt, in particular, is one of my favorite types as it is high in protein and adds a tangy taste. You can experiment with different flavors of yogurt to find your preferred combination. 

Smoothie Ingredients

Whey can be blended with various smoothie ingredients like fresh or frozen fruits and vegetables, such as: 

  • Berries
  • Bananas
  • Mangoes 
  • Spinach 
  • Kale
  • Nut butters
  • Oats
  • Chia seeds
White opened refrigerator filled with fruits, sodas, water, and condiments

These add-ins allow you to create a more substantial and nutrient-dense shake with added vitamins, minerals, and fiber. If not fully blended into a liquid form, you may find you need to re-mx your shake after storing as any unblended ingredients will rest at the bottom. 

Coffee or Tea

For those who enjoy a caffeine boost, mixing whey protein with coffee or tea can be a great option. It can be particularly useful as a pre-workout shake to provide energy and protein simultaneously and it stores well in the refrigerator. 

How Much Whey Should I Consume Per Day?

The recommended dosage of whey protein per day can vary depending on individual factors such as body weight, activity level, and specific goals. However, a common guideline is to consume .8-1 gram of protein per pound of lean mass. Still, it is best to consult with a healthcare professional or a registered dietitian to determine the appropriate dosage for your specific needs.

Can Whey Shakes Replace a Meal?

While whey protein shakes can be a convenient option for those on a cut, they are generally not meant to replace whole meals. Whole foods provide a wide range of nutrients that may not be present in protein shakes alone. However, protein shakes can be used as a supplement or snack to support overall dietary goals.

Is It Better to Mix Whey Shakes With Water or Milk?

While both water and milk are good options for mixing whey shakes, the better choice will depend mostly on personal preference and dietary goals. Mixing protein shakes with water provides a lower calorie mixture than when mixed with milk, which may help achieve lean muscle mass while helping maintain a caloric deficit.

On the other hand, consuming whey with milk enhances taste and provides additional nutrients such as calcium. It is also ideal for individuals who want to bulk up and gain more muscle mass.

When it comes to storing your shake in the refrigerator, both options can be used, so select milk or water based on your overall nutritional goals.


After all that has been said, refrigerating whey shakes is generally safe and can help preserve their quality and freshness for up to 24 hours. This is a great way to go if you have a busy schedule and want to prepare your protein shakes ahead of time. However, it’s crucial to follow the manufacturer’s guidelines and consume them within the recommended time frame to ensure optimal taste and nutritional benefits.

Jack Kelle

Jack is an entrepreneur, outdoorist, and animal lover with a background in philosophy, psychology, and business. He enjoys music, friends, and family. At RAVE, Jack works as the manager of marketing and content development.