FAQ: Whole Milk Powder

Z Natural Foods is dedicated to providing our customers with a diverse range of high-quality foods in their most versatile forms. Our creamy and delicious whole milk powder is a prime example of our commitment to quality. 

Today, we aim to answer some of the most frequently asked questions about this versatile product and whole milk in general, so you have all the information you need to make an informed decision.

1) What is whole milk? 

In simple terms, whole milk is cow’s milk that retains its fat, protein, and micronutrient content, leading to a creamy, consistent texture with a slightly sweet flavor. 

Whole milk generally contains;

• 87% water, 
• 3.25% fat, and 
• 13% solids made up of protein, lactose, and micronutrients. 

Whole milk is minimally processed and is the closest form to what comes from the cow. 

While commercially produced whole milk is often pasteurized and homogenized to break down fat molecules and prevent cream separation, when it comes fresh from the farm, it is not homogenized and contains 4.5% fat, compared to the standard 3.25%. 

• Whole milk is made by collecting raw milk from the cow. 
• The raw milk goes through a process known as separation, which removes any debris. 
• The whole milk is then standardized to provide a consistent 3.5% fat content. 
• Finally, it is pasteurized (high-temperature 160 degrees for 15 seconds) and homogenized. 

2) What role do pasteurization and homogenization play in the dairy industry?

1. Pasteurization is considered a food safety process that uses mild heat to destroy pathogens and spoilage enzymes, extending the shelf life of dairy products and juices. With this process, temperature is the key: High temp/short term is 161 degrees for 15 seconds, Ultra high temp is at 275 degrees for 5 seconds, allowing for shelf stabilization; and batch is 145 degrees for 30 seconds. While this process kills pathogenic bacteria, it does not destroy all bacterial spores. Therefore, it is not true sterilization, and the product still requires refrigeration. 
   
2. Homogenization is a mechanical process that uses heat and pressure to break down fat globules, preventing them from clumping together and rising to the top, aka separation. It ensures a permanent suspension of the cream in the milk, creating a uniform texture. This was evident back in the day, when fresh milk was delivered to people's homes in glass bottles, and you could literally see the separation.

3) Is Whole Milk a great source of Protein? 

Many foods provide nourishing amounts of high-quality protein; each is unique in its own right. One of the many nutritional qualities of whole milk is its unique blend of fast-digesting (whey) and slow-digesting (casein) proteins, allowing for optimal use of this essential macronutrient. 

The following was stated in an article in the National Library of Medicine titled "Health-Related Aspects of Milk Proteins."

• Casein and whey protein are the major proteins of milk 
• Casein constitutes approximately 80% of the total protein in bovine milk, and whey protein accounts for about 20%. 
• Casein is primarily phosphate-conjugated and forms phosphate micelle complexes. It is a heterogeneous family of 4 major components: alpha (As1 & 2 casein), beta-, gamma-, and kappa-casein.” 
• Whey protein is a collector of globular proteins with a high level of a-helix structure. 
• The acidic, basic, and hydrophobic-hydrophilic amino acids are distributed in a fairly balanced form. 
• Alpha-Lactalbumin and beta-lactoglobulin are the predominant whey proteins. 
• Among other types of whey proteins, immunoglobulins, serum albumin, lactoferrin, lactoperoxidase, and protease-peptones must be mentioned. 

4) What is the difference between whole milk, half-and-half, 2%, low-fat, and non-fat milk in terms of fat content and calories?

• Whole Milk: Whole milk contains 3.25% milk fat by weight, 150 calories, and 8 grams of fat per 8-ounce serving.  
• Half & Half: Made by blending equal parts of whole milk and light cream. Depending on the ratio, it contains 10-18% fat. A one-ounce serving provides 40 calories and 4 grams of fat. 
• 2% Milk: An 8-ounce serving contains 120 calories and 2% (5 grams) of fat.
• Low-fat Milk: An 8-ounce serving contains 100 calories and 2.5 grams of fat.
• Non-fat Milk: An 8-ounce serving contains 80 calories and 0.2 % of fat.

5) How is whole milk powder made? 

While there are many natural ways to dry foods and preserve their nutritional qualities, including low-temperature methods, shade, air, sun, and freeze-drying, the quality of the raw materials primarily determines the final product. 

• Whole milk powder averages less than 4% moisture, 26% protein, and 24% fat; therefore, it allows for easier storage and blending and supports the natural flavor profile. 
• The reason whole milk powder has a higher fat content than fresh milk is that it has been dehydrated and concentrated. Fresh milk is around 88% water. 
• Whole milk powder is often standardized (fats and solids are adjusted) to ensure a consistently high fat content of 27%, often higher than the standard 3.25% found in liquid milk.  

6) Why is spray-drying the preferred method of creating whole milk powder?

Ultimately, creating the creamiest, richest, and most versatile whole milk powder is best achieved through spray-drying. This method is a testament to efficiency and practicality. 

Spray drying is the primary method for producing whole milk powder because it combines two key factors that result in a stable, fine, rehydratable powder with the sweet, creamy flavor profile, all in a single step.  

• High efficiency dehydration
• The ability to handle high-fat, heat-sensitive products.

Furthermore, spray-drying is the method of choice for this type of product because whole milk powder has a high-fat content and poses challenges for drying without oil separation. Spray-drying creates tiny droplets, enabling consistent drying and preventing fat separation. 

Finally, spray-drying also provides two unique qualities. First, it removes moisture quickly. This is important because it prevents prolonged exposure to high heat, which can degrade or scorch dairy products. Second, spray-drying microencapsulates the flavor compounds that create the signature tangy flavor profile.

7) Does whole milk powder have to be reconstituted, and what are some common ways to use it?

Like most functional food powders, whole milk powder has limitless potential applications. Z Natural Foods believes that one of the most positive qualities of powdered functional foods is their versatility. Therefore, the simple answer to the first part of this question is NO. 

Keep in mind that it does depend on how you plan to use the whole milk powder. If you are looking to make a simple glass of milk, you will need to reconstitute the powder (combine ⅓ cup of powder with 1 cup of lukewarm water, mix, and let it sit for 5 min, then refrigerate before serving). 

However, whole milk powder has many more uses as a dry ingredient, underscoring its incredible versatility. 

For example, it is a wonderful addition to baked goods, soups, pasta dishes, and stews.  You can also add it to butter or sour cream to enhance the nutritional profile of your baked potato or nachos. Anywhere you need to add dairy, it can basically be applied. However, keep in mind that if used in this manner, it may not be a perfect replica regarding the rich, creamy qualities of fresh whole milk. 

One of our customer’s favorite ways of enjoying whole milk is in our Chocolate Milk Powder. Not only is it a totally delicious crowd-pleaser, our Chocolate Milk is quite possibly the cleanest, most nourishing version of this classic drink, featuring 100% cacao chocolate and a splash of Organic Stevia Extract (Debittered) for a delightful touch of sweetness. Plus, compared to virtually all other versions of Chocolate Milk, ours is both Mom- and kid-approved!

8) What is the fatty acid breakdown in whole milk?

According to a review titled Composition, structure, and absorption of milk lipids: a source of energy, fat-soluble nutrients, and bioactive molecules, “Milkfat is not only a source of bioactive lipid components, but it also serves as an important delivery medium for nutrients, including the fat-soluble vitamins. 

Bioactive lipids in milk include triacylglycerides, diacylglycerides, saturated and polyunsaturated fatty acids, and phospholipids.” “Among the 12 major milk fatty acids, only three (lauric, myristic, and palmitic) have been associated with raising total cholesterol levels in plasma, but their individual effects are variable, both towards raising low-density lipoproteins and raising the level of beneficial high-density lipoproteins. 

The cholesterol-modifying response of individuals to consuming saturated fats is also variable.” Therefore, milkfat's composition, functions, and biological properties will need to be re-evaluated as the food marketplace moves increasingly towards more personalized diets.” 

The breakdown of fatty acids in whole milk

• 62% Saturated
• 30% Monounsaturated
• 4% Polyunsaturated
• 4% Transfats

In conclusion, wholesome milk is considered one of America’s great past-time foods for its versatility, limitless applications, and outstanding protein profile. Whether creating something new and exciting or sticking to the classics, the nutritional profile of milk powder can make everything a bit more nourishing.  

For more information about our Whole Milk powder, go here: Whole Milk Powder

For more information about our Chocolate Milk powder (with Whole Milk powder and 100% Cacao chocolate), go here: Chocolate Milk Powder

The Author’s Bio
Michael Stuchiner is a Master Herbalist and proud graduate of The School of Natural Healing, and has worked in different areas of this field for over 25 years. He is a retired elite-level powerlifter who competed for 27 years. As an avid international traveler, he is passionate about using medicinal and tonic herbs, as well as foods traditionally found in local markets, in the 35 countries he has visited. Michael brings you his years of experience as a Master Herbalist, traveler, and athlete through the hundreds of articles he has written and his YouTube channel (A Master Herbalist Perspective). He is considered a true educator in this field. For more articles written by Mike, go here: Master Herbalist.