Anhydrous Milk fat

1. Overview

Anhydrous Milk Fat (AMF), also locally known as Ghee, is a highly purified milk fat derived from cow or buffalo milk. AMF is a fat-rich dairy ingredient widely used in India, the Middle East, and global food markets for its long shelf life, rich flavor, and high heat stability.

With over 99.8% pure milk fat and nearly zero moisture (≤0.1%), AMF is naturally lactose-free and ideal for various industrial food processing applications. It is a versatile product promoted by leading food processing consultants, dairy engineering firms, and food manufacturing consultants.

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Various fatty products derived exclusively from milk by the means of some manufacturing processes are, Anhydrous Milk Fat, Milk fat, and Anhydrous Butteroil

2. Various applications/uses of AMF (Anhydrous Milk Fat)

AMF is extensively used in a variety of food processing and manufacturing sectors, particularly for its flavor, texture, and stability. Applications include:

• Baked goods (breads, pastries, butter cookies, pound cakes)
• Confectionery (chocolate, pralines, caramels, toffee)
• Dairy-based products (ice cream, buttercream, cream fillings)
• Ready-to-eat meals, soups, and sauces
• Recombination with milk, yogurt, cheese, and cream
• Cooking, roasting, and frying mediums

3. AMF Characteristics

• Composition: 99.8% fat, ≤0.1% water
• Melting Point: 30°C to 34°C
• Storage: Packed in 200-liter drums with nitrogen headspace, stored at +4°C
• Form: Liquid above 36°C, solid below 16–17°C
• Flavor: Rich, buttery, full-bodied

Compared to regular butter, AMF requires less storage space and is easier to blend with other food components, making it a preferred choice for industrial-scale production.

4. Manufacturing process of Anhydrous Milk Fat

Food consultancy services emphasize efficient AMF production, starting from raw milk cream to a refined end product.

1. Cream Separation

• Whole cow milk is pasteurized and separated into cream (35–40% fat).

2. Pre-Concentration

• Cream is preheated to ~60°C in a heat exchanger.
• The light phase (fat) is stored; the heavy phase (buttermilk) is processed further.

3. Fat Recovery

• Buttermilk passes through a separator to recover residual fat.
• Skimmed buttermilk is recycled for energy recovery.

4. Homogenization & Final Concentration

• Cream undergoes phase inversion to release fat globules.
• A final concentrator separates 99.5% fat from the heavy phase (which recycles to the balance tank).

5. Vacuum Drying

• The final fat-rich oil is heated to 95–98°C and passed through a vacuum chamber to achieve ≤0.1% moisture.

6. Cooling

• The AMF is cooled to 36–40°C and prepared for refining or storage.

4. AMF Refining

To improve the quality and marketability of AMF, the product undergoes the following refining processes, often advised by food industry consultants:

1. AMF Polishing

Water (20–30%) is added at the same temperature as the oil to wash and separate impurities, producing a clear and glossy AMF.

2. AMF Neutralization

To reduce free fatty acid content, an 8–10% NaOH solution is mixed with the AMF. Proper emulsification ensures effective separation of the aqueous phase.

3. AMF Decholesterolation

Beta-cyclodextrin (BCD) is added to bind cholesterol and remove it via centrifugation, creating a healthier AMF product for modern health-conscious consumers.

5. Conclusion

Anhydrous Milk Fat (AMF) is a high-purity, lactose-free dairy ingredient with extensive applications in the food processing, confectionery, and dairy industries. Its long shelf life, high smoke point, and superior blending properties make it a preferred substitute for butter in industrial manufacturing.

The comprehensive production process—from raw milk cream separation to polishing, neutralization, and decholesterolation—ensures high-quality output meeting international food safety and quality standards.

As global demand for healthy, functional ingredients grows, investing in AMF production capabilities presents a lucrative opportunity for food consultants, engineering firms, and project developers in the dairy and functional food sectors.

6. Reference

1. Uelzena Ingredients – Anhydrous Milk Fat
2. TetraPak Dairy Processing Handbook – AMF & Butteroil