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Frozen Dessert and Ice Cream Manufacturing Process: Ingredients, Technology, and Production Steps

By PMG Engineering ·

Ancient civilizations, including the Chinese, Greeks, and Romans, enjoyed early versions of frozen treats made by mixing fruit juices with snow. However, it wasn’t until the endothermic effect was understood that true ice cream became possible—by lowering the melting point of ice with salt, heat could be drawn from cream to freeze it.

Today, the production of ice cream and frozen desserts has evolved into a high-tech process incorporating advanced machinery and expert formulation—a key focus for food manufacturing consultants and food technology consulting firms.

Key Ingredients in Frozen Dessert Formulation

Fat (10–15%)

  • Adds creaminess and improves melting resistance.
  • In ice cream: milk fat; in frozen dessert: vegetable fat like hydrogenated coconut oil or palm kernel oil.

Milk Solids Non-Fat (MSNF)

  • Derived from skim milk, milk powders, or whey.
  • Contributes to texture, emulsification, and nutritional value.
  • Optimal ratio: 17 parts MSNF to 100 parts water.

Sugar/non-sugar sweetener

  • Standard sugar content: 12–20%.
  • In sugar-free variants: sucralose, aspartame, or sorbitol with bulking agents like maltodextrin.

Emulsifiers/stabilizers

  • Used at ~0.5% concentration.
  • Create uniform texture, bind fats, stabilize air cells, and control ice crystal growth.
  • Common sources: algae, wood, or seeds..

Flavors and Colors

  • Vanilla, chocolate, and strawberry are the most popular.
  • Can be natural or artificial, added before or after pasteurization.

 

Ice Cream and Frozen Dessert Manufacturing Process

Mix Preparation

  • Raw materials (milk, cream, sugar, powders) are blended in a tank.
  • Powders are introduced using a mixing ejector, liquids measured directly.
  • Heated to 50–60°C for dissolution.

 Pasteurization and Homogenization

  • Pre-heated to 73–75°C, homogenized at 140–200 bar, then pasteurized at 83–85°C.
  • Kills microbes and ensures smooth texture through fat globule reduction.

Ageing

  • Mix aged for at least 4 hours at 2–5°C with gentle stirring.
  • Enhances fat crystallization and air incorporation.

Freezing and Packaging

  • In a continuous freezer, air is whipped into the mix and partially frozen.
  • Overrun: 80–100%, meaning up to 1L air per 1L mix.
  • Output temp: –8°C to –3°C.

Hardening and Storage

  • Passed through a hardening tunnel to reach –20°C core temperature.
  • Final packaging in cartons or tubes, either manually or automatically.

 

Ice cream has come a long way since the first snow cone was made. Innovations in a variety of areas over the past century have led to the development of highly sophisticated, automated manufacturing plants that churn out pint after pint of ice cream. Significant advances in fields such as mechanical refrigeration, chilling and freezing technologies, cleaning and sanitation, packaging, and ingredient functionality have shaped the industry.

New developments in ice cream freezer technology will be likely in the future as freezers are better engineered to control the complex microstructures in ice cream. Current freezers are designed to form ice, create air bubbles, and destabilize fat globules in the short time that ice cream spends in the scraped surface freezer. A better understanding of how to optimize each of these structure developments will lead to more efficient freezer operations.

 

 

Conclusion

The journey of frozen desserts and ice cream manufacturing reflects the broader evolution of the food processing industry—from traditional methods to cutting-edge automated systems. Understanding the raw materials, processing steps, and technological advancements not only enhances product quality but also enables food consultants, food manufacturing consultants, and engineering experts to design more efficient, compliant, and scalable production facilities.

As consumer demand grows for diverse, premium frozen products, manufacturers must continue investing in smart process design, hygienic plant layouts, and energy-efficient solutions. With the support of experienced food processing consultants and food plant design experts, companies can build world-class ice cream and frozen dessert lines that meet both domestic and global standards.

For businesses seeking to enter or scale within this sector, collaborating with a trusted food industry consultant like PMG Engineering can ensure success from concept to commissioning.

Reference

  1. Wikipedia – Frozen Dessert
  2. Tetra Pak – Ice Cream Handbook
  3. AllRecipes – Ice Cream vs. Frozen Dessert
  4. NDTV Food
  5. ResearchGate – Ice Cream and Frozen Desserts

 

 

 

 

 

 

 

Frequently asked
What is the actual difference between ice cream and a frozen dessert in terms of formulation?
The distinction lies in the fat source. Both carry 10-15% fat, which adds creaminess and improves melting resistance, but ice cream uses milk fat while frozen dessert uses vegetable fat such as hydrogenated coconut oil or palm kernel oil. The rest of the formulation - MSNF, sweeteners, emulsifiers and stabilizers, flavours and colours - follows broadly the same principles in both products.
What temperatures and pressures should we design for in the pasteurization and homogenization stage of an ice cream line?
In ice cream and frozen dessert manufacturing, the mix is pre-heated to 73-75°C, homogenized at 140-200 bar, and then pasteurized at 83-85°C. Homogenization reduces fat globule size for a smooth texture, while pasteurization destroys microorganisms. Ahead of this, raw materials are blended in a tank and heated to 50-60°C so that powders and sugars dissolve fully.
Why do we need an ageing tank, and how long must the mix be held?
Ageing is a mandatory step in ice cream and frozen dessert production. The pasteurized and homogenized mix is held for at least 4 hours at 2-5°C with gentle stirring. This allows fat crystallization to develop and improves the mix's ability to incorporate air during freezing, which directly affects final texture and body. Ageing capacity must be sized into the plant layout accordingly.
What overrun and outlet temperature should we expect from a continuous freezer?
In a continuous freezer, air is whipped into the aged mix while it is partially frozen. Typical overrun for ice cream and frozen desserts is 80-100%, meaning up to 1 litre of air is incorporated per 1 litre of mix. The product leaves the freezer at -8°C to -3°C before it moves on to packaging and hardening.
How cold does the hardening tunnel have to take the product?
After the continuous freezer and packing, ice cream and frozen dessert products pass through a hardening tunnel until the core temperature reaches -20°C. Final packaging is done in cartons or tubes, either manually or automatically. The hardening step fixes the structure created in the freezer and is essential for storage and distribution stability.
How much emulsifier and stabilizer goes into the mix, and what do they actually do?
Emulsifiers and stabilizers are used at roughly 0.5% concentration in frozen dessert and ice cream mixes. They create uniform texture, bind fats, stabilize the air cells introduced during freezing and control ice crystal growth. Common sources include algae, wood and seeds. Sugar content is typically 12-20%; sugar-free variants use sucralose, aspartame or sorbitol with bulking agents such as maltodextrin.
CITE THIS

PMG Engineering. (2022). Frozen Dessert and Ice Cream Manufacturing Process: Ingredients, Technology, and Production Steps. PMG Engineering. https://pmg.engineering/Article/134/frozen-dessert-and-ice-cream-manufacturing-process-ingredients-technology-and-production-steps/

https://pmg.engineering/Article/134/frozen-dessert-and-ice-cream-manufacturing-process-ingredients-technology-and-production-steps/