2000L Jacketed Ice Cream Aging Tank for Dairy Production

Product introduction of Jacketed Ice Cream Aging Tank

The 2000L jacketed ice cream aging tank is designed to condition pasteurized and homogenized ice cream mix under stable refrigerated conditions before freezing. Cooling medium circulates around the stainless steel vessel to maintain the product at approximately +4°C, while polyurethane insulation limits heat gain during extended holding. A slow-speed agitator gently circulates the mix, supporting uniform temperature distribution without excessive mechanical action. During aging, fat continues to crystallize while proteins and polysaccharides hydrate, preparing the formulation for subsequent freezing and aeration. The process normally requires at least four hours and may continue overnight depending on the recipe. A hermetically enclosed tank structure helps protect the product during maturation, while the sloping bottom promotes efficient discharge. Food-grade stainless steel construction, polished internal surfaces, and CIP-compatible cleaning make the tank suitable for hygienic dairy production. Self-contained cooling can also be configured where independent refrigeration is required.

Why Ice Cream Mix Requires Aging

Aging is an important conditioning stage between mix preparation and freezing. Once the pasteurized and homogenized mixture has been cooled, it is held at a low temperature to allow physical changes within the formulation to continue.

During this period, part of the fat phase crystallizes while proteins, stabilizers, and polysaccharides absorb water more completely. These changes influence viscosity and help prepare the mix for aeration and freezing.

For this system, approximately +4°C provides the controlled refrigerated environment required for extended maturation before the product proceeds to the freezer.

Extended Holding for Complete Maturation

Unlike rapid cooling alone, maturation requires sufficient holding time. Ice cream mix can remain in the tank for at least four hours, while overnight aging may be selected depending on the formulation and production schedule.

The insulated vessel reduces temperature fluctuations throughout this period. Gentle circulation keeps the contents homogeneous, allowing the entire batch to experience more consistent maturation conditions.

Actual aging duration should be determined according to recipe composition, stabilizer system, fat content, initial mix temperature, and desired finished-product characteristics.

Technical Specifications

Key Features

• 2000L Production Capacity: Provides substantial batch volume for medium- to large-scale ice cream and frozen dessert manufacturing.
• Stable +4°C Holding: Designed to maintain suitable low-temperature conditions throughout the extended maturation period.
• Jacketed Cooling Structure: Allows chilled cooling medium to circulate around the vessel for indirect product temperature control.
• Self-Cooling Option: An integrated refrigeration configuration can be provided when an external chilled-water source is unavailable.
• Slow-Speed Stirring: Maintains batch homogeneity and temperature consistency without intensive shear during maturation.
• Hermetically Enclosed Vessel: Helps protect the ice cream mix from the surrounding production environment during prolonged holding.
• Sloping Tank Bottom: Improves product drainage and minimizes residual mix remaining after batch transfer.
• CIP-Compatible Interior: Polished internal surfaces and sanitary construction facilitate efficient cleaning between production cycles.

Slow Agitation for Homogeneous Ice Cream Mix

The agitator is intended to maintain product uniformity rather than perform intensive mixing. Slow movement continuously redistributes the cooled mix, helping minimize temperature gradients and separation during long holding periods.

This gentle handling is particularly valuable after homogenization because the formulation has already undergone its main mixing and particle-size reduction stages. The aging tank therefore focuses on maintaining stable conditions while the mixture develops the properties required for freezing.

Typical Processing Sequence

The 2000L aging tank can be integrated into the ice cream production process as follows:

Ingredient Dosing → Mix Preparation → Pasteurization → Homogenization → Cooling → Aging & Maturation → Freezing & Aeration → Filling → Hardening

The tank serves as a controlled holding stage between cooling and freezing, allowing the prepared formulation sufficient time to develop before final processing.

Applications

• Cup Ice Cream Production: Conditions prepared ice cream mix before freezing and filling into cups for commercial distribution.
• Premium Ice Cream Processing: Provides extended low-temperature maturation for formulations requiring controlled texture development.
• Gelato Manufacturing: Maintains gelato base under refrigerated conditions before batch or continuous freezing.
• Soft Serve Mix Production: Holds prepared soft serve formulations at a stable temperature before further processing or packaging.
• Frozen Dairy Dessert Processing: Supports maturation of milk- and cream-based formulations used for different frozen dessert products.
• Flavored Ice Cream Manufacturing: Handles chocolate, vanilla, fruit, nut, and other formulated mixes requiring controlled refrigerated aging.

FAQ

Q1: What is the working capacity of this ice cream aging tank?
A: This configuration is designed for 2000L batch processing, making it suitable for commercial ice cream and frozen dairy dessert production.

Q2: What temperature should the ice cream mix be maintained at?
A: The tank is designed to maintain the prepared mix at approximately +4°C during the maturation stage.

Q3: How long does ice cream mix need to age?
A: The mix is generally aged for at least four hours and may be held overnight depending on the formulation, production schedule, and required product characteristics.

Q4: What happens to the ice cream mix during aging?
A: During controlled low-temperature holding, fat continues to crystallize while proteins and polysaccharides hydrate, helping prepare the formulation for efficient freezing and aeration.

Q5: Can the tank operate without a central chilled-water system?
A: Yes. A self-cooling configuration with an independent refrigeration system can be supplied when standalone cooling is preferred.

Q6: What stainless steel materials are available?
A: The tank can be manufactured using food-grade SS304 or SS316 according to product requirements and processing conditions.

Q7: Why is polyurethane insulation used?
A: Polyurethane insulation reduces heat transfer from the surrounding environment, helping maintain stable refrigerated conditions during long aging cycles.

Q8: Is the tank suitable for CIP cleaning?
A: Yes. The sanitary polished interior and enclosed vessel design can be configured for CIP cleaning to simplify routine sanitation.

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