1000L Sanitary Ice Cream Aging Tank with Cooling System

Ice Cream Aging Tank Product Introduction

The 1000L sanitary ice cream aging tank is engineered for the cooling and physical maturation of pasteurized and homogenized ice cream mix before freezing. Its three-layer construction consists of a stainless steel inner vessel, honeycomb cooling jacket, and insulated outer shell, helping improve thermal efficiency and reduce energy loss. Cooling medium circulates through the jacket to indirectly lower the product temperature to approximately 2–4°C, while continuous gentle agitation keeps the mixture uniform during the holding period. Controlled aging allows proteins, stabilizers, and other ingredients to hydrate properly, helping increase mix viscosity and improve stability before freezing. The sloped bottom promotes efficient product discharge and reduces residual material, while smooth sanitary surfaces simplify cleaning between batches. With a 1000L batch capacity, adjustable temperature range, durable stainless steel construction, and operating design, this tank is suitable for integration into industrial ice cream, frozen dessert, and dairy processing systems requiring repeatable low-temperature maturation.

Key Features

• 1000L Batch Processing Capacity: Provides sufficient working volume for commercial ice cream mix preparation and scheduled batch production.
• Honeycomb Cooling Jacket: Enlarges the effective heat-transfer area to support rapid and uniform indirect cooling of the product.
• Three-Layer Tank Structure: Combines an inner product vessel, cooling jacket, and insulated external shell for efficient temperature management.
• Gentle Mechanical Agitation: Keeps ingredients evenly distributed throughout the maturation period and helps prevent localized separation.
• Sloped Bottom Design: Encourages complete drainage and makes product recovery and subsequent cleaning more convenient.
• Adjustable Temperature Control: Provides processing flexibility for different formulations and production requirements.
• Sanitary Stainless Steel Construction: Offers corrosion resistance, durability, and smooth food-contact surfaces for hygienic processing.
• Energy-Efficient Operation: Insulated construction reduces unwanted heat exchange and helps lower cooling energy consumption.

Honeycomb Jacket Cooling Design

The honeycomb-style jacket surrounds the product vessel and creates a dedicated channel for circulating cooling medium. Heat is transferred indirectly through the stainless steel wall, keeping the cooling medium separated from the ice cream mix.

This structure provides a broad heat-transfer area and supports more even temperature reduction throughout the batch. Combined with the insulated outer shell, it helps the system achieve efficient cooling while limiting heat gain from the surrounding production environment.

Three-Layer Insulated Tank Structure

The vessel uses a three-layer configuration consisting of the inner product tank, intermediate cooling jacket, and external insulated shell. Each layer performs a specific function within the temperature-control process.

The inner tank provides a hygienic product-contact chamber, the jacket distributes cooling medium around the vessel, and the insulated outer structure minimizes thermal losses. This arrangement is particularly suitable for ice cream mix that must remain under controlled low-temperature conditions for several hours.

Technical Specifications

Typical Ice Cream Processing Flow

The aging tank functions as an intermediate processing stage rather than a conventional storage vessel. A typical production sequence is:

Ingredient Preparation → Mixing → Pasteurization → Homogenization → Rapid Cooling → Aging → Freezing → Filling → Hardening

The tank receives cooled mix after heat treatment and holds it under controlled conditions until it is ready for transfer to the freezing equipment.

Applications

• Hard Ice Cream Production: Ages prepared ice cream mix under controlled cooling conditions before continuous or batch freezing.
• Gelato Processing: Provides gentle mixing and low-temperature holding for gelato bases requiring controlled maturation.
• Soft Serve Mix Preparation: Maintains prepared soft serve formulations at a consistent temperature before downstream freezing or dispensing.
• Frozen Dairy Dessert Production: Handles milk- and cream-based formulations used in a variety of commercial frozen desserts.
• Flavored Ice Cream Processing: Supports uniform maturation of vanilla, chocolate, fruit, nut, and other formulated ice cream bases.
• Plant-Based Frozen Dessert Processing: Can process suitable non-dairy formulations requiring cooling, agitation, and controlled holding before freezing.

Advantages for Batch Ice Cream Production

The 1000L batch configuration allows processors to prepare a defined quantity of mix and hold it independently from downstream freezing operations. This creates a useful process buffer and helps coordinate production schedules when multiple recipes or flavors are manufactured.

The combination of jacket cooling, insulation, agitation, and sanitary construction also reduces the need for separate cooling and holding vessels, creating a more streamlined process between homogenization and freezing.

Cleaning and Maintenance

Smooth stainless steel product-contact surfaces are designed to simplify sanitation after each production cycle. The sloped tank bottom assists drainage of both product and cleaning liquid, reducing areas where residue may remain.

Routine inspection of the agitator, seals, valves, temperature-control components, and cooling jacket helps maintain reliable operation. Cleaning procedures can be adapted to the hygiene requirements of the production facility.

FAQ

Q1: What is the capacity of this ice cream aging tank?
A: The tank is designed for 1000L batch processing, making it suitable for commercial ice cream and frozen dessert production.

Q2: What temperature is normally used for ice cream aging?
A: Pasteurized and homogenized ice cream mix is typically cooled and maintained at approximately 2–4°C during the aging stage.

Q3: How does the honeycomb jacket cool the product?
A: Cooling medium circulates through the jacket surrounding the inner vessel. Heat passes through the stainless steel wall, allowing indirect cooling without contact between the cooling medium and product.

Q4: Why is agitation required during ice cream aging?
A: Gentle agitation maintains even temperature and ingredient distribution while helping prevent fat separation or localized variations within the batch.

Q5: What is the purpose of aging ice cream mix before freezing?
A: Aging allows ingredients such as proteins and stabilizers to hydrate and supports physical changes in the fat phase, improving viscosity, stability, freezing performance, and final product structure.

Q6: How long should ice cream mix remain in the aging tank?
A: Aging may range from approximately 1.5 hours to several hours, with around four hours commonly used as a process reference. The actual time depends on formulation and production conditions.

Q7: Why does the tank use a sloped bottom?
A: The sloped bottom directs product toward the discharge outlet, helping reduce residual material and making draining and cleaning more efficient.

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