In the frozen food industry, dumplings are popular because they are convenient and delicious. However, traditional freezing methods often fail to keep the dumplings’ texture and flavor intact. This can cause the dumpling skin to crack and the filling to dry out. Liquid nitrogen freezing cabinets offer a new solution for freezing dumplings, greatly improving their quality and shelf life through a quick and even freezing process.

Challenges in Freezing Dumplings

When freezing dumplings, there are three main challenges:

• Uneven Freezing Affects Texture: Dumplings have a thick outer skin, and traditional freezing methods often struggle to cool the dumplings evenly from the skin to the filling. This can cause the skin to crack and the filling not to freeze properly, affecting both the appearance and the eating experience.
• Loss of Moisture and Flavor: Traditional freezing methods take a long time, which can cause the filling to lose a lot of moisture. This makes the dumplings taste less fresh and may even ruin their original flavor. Moisture loss not only affects the customer’s experience but also reduces the product’s competitiveness in the market.
• Spoilage Risk During Storage and Transport: If dumplings are not fully frozen, they can spoil during storage and transport, shortening their shelf life and harming sales and the company’s reputation.

Advantages of Liquid Nitrogen Freezing Cabinets

Liquid nitrogen freezing cabinets overcome many of the limitations of traditional freezing methods, providing several key benefits:

• Efficient Freezing at Ultra-Low Temperatures: Liquid nitrogen can reach temperatures as low as -196℃, allowing dumplings to freeze quickly in just a few minutes. This prevents large ice crystals from forming, preserving the dumplings’ original texture and ensuring perfect appearance and taste.
• Even Freezing Ensures Quality: Liquid nitrogen freezing cabinets cool the dumplings evenly from the outside, preventing the common problems of cracked skin and insufficiently frozen filling. Liquid nitrogen freezing technology guarantees consistent texture from the skin to the filling, enhancing the overall quality of the product.
• Retains Moisture and Flavor: The quick freezing process locks in the moisture, preventing it from escaping. This keeps the dumplings tender and flavorful, so they taste fresh even after being thawed. This meets consumer demands for high-quality food.
• Extended Shelf Life: Liquid nitrogen freezing cabinets can significantly extend the shelf life of dumplings, reducing the risk of spoilage during storage and transport. This is especially important for long-term storage and long-distance shipping, helping companies reach more markets and increase the product’s value.

Innovative application process of liquid nitrogen cabinets

To ensure the dumplings’ quality during freezing, our customer used SPEEDCRYO’s liquid nitrogen freezing cabinet. This successfully solved the challenges of freezing dumplings. Here’s the process:

1. Preparation and Placement: Before freezing, dumplings are evenly placed on freezing trays. This ensures each dumpling is exposed to cold air, avoiding uneven freezing caused by stacking. This step is crucial for achieving the best freezing results and product quality.
2. Quick Freezing: After placing the trays in the liquid nitrogen freezing cabinet, the dumplings are quickly frozen from the skin to the filling by setting the right temperature and time. This quick freezing process perfectly preserves the texture and taste, allowing consumers to enjoy dumplings as fresh as if they were just made.
3. Post-Freezing Handling and Packaging: Frozen dumplings are immediately packaged to maintain the continuous cold chain, preventing moisture absorption and spoilage after thawing. This ensures the dumplings remain high quality from production to the consumer’s table.

SPEEDCRYO® Small Stand up Liquid Nitrogen Freezer

 

External Dimensions: 1850x1970x2180 mm (LxWxH)

Average capacity: 250-550 KG/H

Easy to operate PLC touch screen control system

Welding process inspection standard is very high

World famous brand flow control valve

Advanced spray freezing design

Business Value of Liquid Nitrogen Freezing

Liquid nitrogen freezing cabinets not only offer a breakthrough solution for freezing dumplings but also bring significant business benefits:

1. Increased Production Efficiency: By shortening freezing time, liquid nitrogen freezing cabinets make production lines more efficient, meeting the demands of large-scale production. This is crucial for improving a company’s production capacity and market responsiveness.
2. Reduced Product Loss: Reducing product loss caused by incomplete freezing saves costs and increases profit margins. Companies can achieve higher economic benefits by using liquid nitrogen freezing technology.
3. Enhanced Market Competitiveness: Dumplings frozen with liquid nitrogen have superior quality and taste, making them more competitive in the market. They meet consumer demand for high-quality frozen food, helping companies stand out in a competitive market.