Skim Milk Powder (SMP) is a versatile dairy ingredient produced by evaporating pasteurized skimmed cow’s milk. It retains the core nutritional components of fresh milk—milk proteins, lactose, and minerals—making it ideal for both food manufacturing and nutritional products.

Composition of Skim Milk Powder

SMP typically contains 34–37% protein, making it a valuable source of nutrition. It is made by removing most of the water and fat from pasteurized milk, resulting in a shelf-stable powder. SMP is commonly used in therapeutic and supplementary foods.

Solubility Classification of SMP

SMP is categorized by the level of heat treatment applied during production, which affects its solubility:

• High-heat SMP: Least soluble

• Medium-heat SMP: Moderate solubility

• Low-heat SMP: Most soluble

This classification helps manufacturers choose the appropriate grade based on the intended food application.

Forms of SMP: Instant vs. Non-Instant

Spray-dried SMP is available in two main forms:

• Ordinary (Non-Agglomerated): Requires more time and agitation to dissolve

• Agglomerated (Instant SMP): Designed for quick dissolution in liquids, making it more user-friendly in ready-to-use food products

Common Uses of SMP

SMP is widely used in the production of:

• Ready-to-Use Foods (RUFs)

• Fortified Blended Foods (FBFs)

• Bakery items, dairy products, beverages, and nutritional supplements

Its high protein content and long shelf life make it especially useful in humanitarian aid, clinical nutrition, and industrial-scale food production.

✅ Frequently Asked Questions (FAQ)

What is the main difference between SMP and whole milk powder?

SMP contains little to no fat, while whole milk powder retains the natural fat content of milk. This makes SMP more suitable for low-fat formulations.

Is SMP the same as non-fat dry milk?

Yes, the terms Skim Milk Powder (SMP) and Non-Fat Dry Milk (NFDM) are often used interchangeably, especially in international markets.

What are the storage conditions for SMP?

SMP should be stored in a cool, dry place away from moisture and strong odors. When stored properly, it can have a shelf life of up to 18 months.

Can SMP be used in infant formula or clinical diets?

Yes, depending on the processing grade, SMP is used in therapeutic foods and clinical nutrition, but must meet strict safety and nutritional standards.

Is instant SMP better than regular SMP?

Instant SMP dissolves more easily and is more convenient for consumer use, but both forms offer the same nutritional value.

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