Cold storage for vegetables: Prestigious construction and installation

In a modern produce supply chain, keeping goods fresh and nutritious after harvest is a matter of survival for a business. Installing a cold storage for vegetables to the correct technical standard not only extends storage life several times over but reduces spoilage substantially. At Tân Long, we deliver optimised cold store design solutions, combined with premium equipment such as high-efficiency compressors and our exclusive T-Light cold store door system, ensuring the ideal temperature and humidity for each particular type of produce you handle.

What is a vegetable cold store?

Figures from practice show that produce and vegetables suffer very heavy post-harvest losses, ranging from 25–30%, because traditional storage methods are inadequate. To solve this, a cold storage for vegetables is regarded as the most advanced technology available, minimising the economic damage to growers and businesses alike.

Technically, the system is cold storage design with temperature and humidity tightly controlled to suppress plant respiration. A standard cold store installation allows vegetables to be stored for long periods while retaining their nutritional content, without deformation or spoilage.

For the best results, the cold storage for vegetables systems at Tân Long normally incorporate premium equipment such as refrigeration compressor high power and industrial refrigeration with even air circulation. As a result, storage life can extend to several months, perfectly meeting the supply needs of supermarket chains, restaurants, exporters and large-scale growers.

The most common types of vegetable cold store today

Depending on the scale of production, the characteristics of the produce and the transport requirements, businesses can choose different approaches. Understanding the advantages and limitations of each type of cold storage for vegetables helps you optimise the capital cost and improve the economics.

Refrigerated containers

A refrigerated container (normally 10 ft to 45 ft) is a flexible solution holding a wide temperature range from −40°C to 10°C.

• Advantage: It is highly mobile, making it ideal for transporting vegetables long distances or for export.
• Disadvantages: Capacity is limited by the container frame, so it cannot meet large-scale storage needs at a collection plant.

Industrial freezer cabinets

A freezer cabinet stores vegetables at temperatures as low as −40°C, completely suppressing harmful bacteria.

• Advantage: You can store a wide range of vegetables at different temperatures within the same cabinet system. Think of it as an upgraded domestic fridge with many times the capacity.
• Application: It is normally used for rapid freezing before goods move into storage. To streamline this, many businesses combine it with IQF flat conveyor belt to ensure the best possible quality.

Fixed cold storage systems (warehouses)

This is the most durable and economical solution for produce businesses today. The system has a flexible footprint, with a cold store designed specifically to the actual space available.

• Structure: The store is assembled from high-density Insulated panel panels, combined with high-efficiency compressors and industrial evaporators.
• Advantage: It can store an enormous quantity of cold storage for vegetables , up to hundreds of tonnes. Such stores are normally built permanently near the growing area, for ease of collection and distribution.
• Economic benefits: Outstanding energy efficiency, and easy to upgrade and maintain.

Standard technical specifications for a vegetable cold store

To keep produce at its freshest and most nutritious, designing and installing a cold storage for vegetables must follow strict fundamental technical specifications. At Tân Long, we optimise the system against the following standards:

• Storage temperature: Depending on the characteristics of the produce, the ideal temperature range is normally held steadily between 0°C to 5°C. This is the golden range for suppressing respiration and preventing bacterial ingress.
• Dimensions and capacity: The cold store is designed flexibly to the client's actual needs, from mini stores for small businesses to vast industrial systems of thousands of tonnes.
• The envelope: Premium insulated panels for the ceiling and walls, ensuring complete thermal performance and low running costs.
• Floor construction: The floor is level, load-bearing and non-slip. Depending on the budget, Tân Long supplies two types of purpose-made insulation panel:
  • EPS Panel: Standard density 22kg/m³.
  • Panel PU: High density 34kg/m³ (recommended for systems requiring outstanding durability and thermal performance).
• Intelligent control system: Lines cold storage for vegetables New-generation systems at Tân Long are all fitted with a control cabinet incorporating PLC/IoT technology. The display shows detailed temperature and pressure readings and the system alarms faults automatically, making it easy to monitor and operate the store safely from a distance.

The detailed construction of a standard vegetable cold store system

Technically, a cold storage for vegetables built to standard at Tân Long is made up of high-quality components working together to maintain the optimum storage environment. The core components are:

• Insulated warehouse shell: This is the most important component in preventing heat loss. The envelope is normally assembled from premium insulated panels. Depending on the technical requirements and the budget, clients can choose EPS Panel (density 22 kg/m³) or PU/PIR Panel (density 34 kg/m³) for complete thermal performance.
• Cold storage door system: To ensure a tight seal as goods move in and out, Tân Long fits T-Light cold storage door in two common forms: sliding doors and hinged doors. Both are clad in stainless or colour-coated steel, with cold-resistant rubber gaskets that completely prevent warm air entering.
• The central refrigeration system: This is the “heart” of the cold storage for vegetables, include:
  • Refrigeration compressor unit: Tân Long uses genuine imported compressors from the world's leading brands, such as Tecumseh, Bitzer, Danfoss, Panasonic and LG, ensuring durable operation and very high cooling performance.
  • Evaporators and condensers: Designed to circulate air evenly throughout the store, avoiding the local warm spots that spoil vegetables.
  • Control panel: System integration PLC control cabinet intelligent, allowing pressure and temperature to be monitored and the whole operation automated, so the store is easy to manage with just a few simple steps.

Combining genuine equipment with methodical cold store design gives a system that runs reliably, saves electricity and keeps produce many times longer than an improvised store.

The operating principle and technical standards of a vegetable cold store

To the system cold storage for vegetables working effectively, strict compliance with the temperature, humidity and air velocity standards is essential. At Tân Long, the cold store design process always focuses on creating a perfect “dormancy” environment for produce, by controlling the following operating parameters precisely:

• Maintain a stable temperature: Depending on the biology of each plant, a cold storage for vegetables is normally set within an ideal temperature range of 2°C to 10°C. Holding a stable low temperature slows the respiration rate of the vegetables and prevents bacterial growth without freezing the cell structure.
• Optimum humidity control: Humidity in the store is normally set between 60% and 80% (or higher for particular produce). This keeps fruit and vegetables from losing water and wilting, while preventing the excess humidity that leads to mould and rot.
• Air circulation and velocity: The industrial evaporators are sized and positioned so the cold air circulates evenly across all the racking. This not only cools uniformly but removes accumulated ethylene — the main agent that ripens and spoils vegetables prematurely.
• Intelligent management through the control system: This whole operation is fully automated through a control panel with precise sensors. The operator can easily monitor and adjust the technical parameters to suit each harvest period and each product in store.

Factors determining how long produce keeps, and at what quality, in a vegetable cold store

To optimise the economics, understanding the factors affecting produce after harvest is extremely important. The performance of a cold storage for vegetables depends heavily on controlling the following variables:

The biology of the vegetables

Before it goes into the cooling process, the initial quality of the produce is decisive:

• Ripeness: Ripe vegetables respire fast and therefore spoil quickly. Produce harvested just at maturity, by contrast, keeps longer in store.
• Product grouping: Leafy greens have a large transpiring surface and wilt readily, while thick-skinned root vegetables are far more robust.
• Mechanical damage: Bruised or scratched produce is the gateway for bacteria and mould, shortening the life of the whole batch in store.

The environmental parameters inside the store

Setting the technical parameters accurately keeps the plants in a state of “dormancy”:

• Temperature: This is the most important factor. A low temperature slows spoilage, but without a properly designed cold store, cold burn can occur and damage the cell structure of the vegetables.
• Humidity: An appropriate humidity must be maintained (normally 85–95%). Too low and the vegetables lose water and wilt; too high and yeasts develop and cause rot.
• Air circulation: The industrial evaporators need positioning so the air circulates evenly, removing accumulated ethylene (a plant hormone that drives natural ripening).
• Light: The store must be kept completely dark, to prevent photosynthesis and unwanted sprouting.
• Pre-storage handling: Before entering the store, produce should be cleaned and pre-cooled. For products needing deep freezing, an IQF conveyor is the ideal solution for preserving the structure of the product.

All these factors are closely monitored through Tân Long's intelligent control panel system, giving the owner confidence in the quality of their produce throughout its time in store.

Core benefits of installing a vegetable cold store for your business

Investing in a cold storage for vegetables is not simply an operating cost but a smart investment, delivering lasting value and a decisive competitive advantage for produce businesses today.

Extending freshness and preserving nutritional value in full

Quite unlike traditional storage methods, a cold storage for vegetables creates a tightly controlled “microclimate”. Combining technically sound cold store design with intelligent controls suppresses microbial growth while slowing the plants' natural respiration.

As with the cold storage for fresh flowerssolution, vegetables stored in a standard refrigerated environment keep their crispness, natural colour and vitamin content almost exactly as at harvest.

Cutting losses by up to 90% and optimising profit

In practice, produce stored in ambient conditions can suffer economic losses of 30–40% through wilting or rot. Applying cold storage for vegetables technology brings that loss below 5%.

Preserving the maximum of the crop means the business has more stock to supply, lower risk costs and a directly higher margin on every harvest.

Controlling your own supply and taking advantage of market swings

With a highly automated industrial cold storage of large capacity, you can genuinely control your own position in the produce market:

• Buying in bulk: Gom hàng vào chính vụ với mức tối ưu chi phí nhất.
• Long-term storage: Waiting for the market to run short, or for the off-season, to ship at a higher value.
• Consistent supply: Retaining loyal customers by supplying fresh product all year round, independent of the season.

Meeting international standards and raising brand value

System cold storage for vegetables modern provides a sealed environment that completely prevents insects and mould entering. Combined with the absolutely tight T-Light cold store door system in particular, your produce readily meets demanding standards such as VietGAP, GlobalGAP and HACCP.

That is the essential “passport” for getting your product into premium distribution channels such as major supermarkets and five-star restaurant chains, and into demanding export markets such as Europe, Japan and the United States.

The advantages of having Tân Long build your vegetable cold store

System cold storage for vegetables is not just a storage room but a complete technology solution designed to optimise the produce value chain. Here are the key reasons growers and businesses trust Tân Long's installation service:

• Flexible storage for a wide range of produce: Every vegetable has its own “temperature threshold” for staying fresh. Thanks to intelligent cold store design, the system can set the temperature and humidity precisely for specific products such as beetroot, radish, carrots or sensitive leafy greens, maximising the use you get from it.
• Outstanding economics and very long life: Investing in a Tân Long industrial cold store is a long-term financial decision. Built from high-density insulated panels and high-efficiency compressors, the store runs reliably for up to 30 years. Most importantly, the technology keeps post-harvest losses extremely low (below 5%), far better than conventional storage methods.
• Simple operation, intelligent management: The systems cold storage for vegetables Modern systems are all fitted with a control panel with a clear display. After a single technical briefing from Tân Long's engineers, the user can confidently start the system, monitor pressures and adjust the store temperature safely and accurately.

Standard vegetable storage temperatures by product group

In the operating process cold storage for vegetables, setting the right temperature range for each product group is vital to maintaining quality. Every vegetable has a different tolerance; set it wrongly and the produce readily suffers cold burn or rots quickly as respiration accelerates. From its in-depth cold store design experience, Tân Long groups the standard storage temperatures as follows:

• Near-freezing group (−1°C to 0°C): This is the ideal environment for vegetables with excellent cold tolerance. It suppresses metabolism almost entirely without freezing the cell structure, and normally applies to certain cool-climate vegetables and high-sugar root crops.
• Freezing-point group (0°C): At this temperature, produce such as broccoli, strawberries and carrots stay crisp and fresh longest. It is a demanding range, requiring the compressor and sensors to work extremely accurately to avoid damaging the product structure.
• Just-above-freezing group (0°C to 5°C): This is the most common range in cold storage for vegetables systems today. It suits leafy greens, grapes and tomatoes — products that need a low temperature to stay fresh but are easily damaged if the temperature falls to freezing.
• 5°C to under 10°C group: For fruit and vegetables that cannot take deep cold but still need a cool environment to avoid wilting — cucumbers, bell peppers and certain juicy fruits.
• 10°C to 15°C group: This is the particular range for sensitive tropical fruits such as bananas, mangoes and papaya, and for gourd family vegetables. Storing in a industrial cold storage at this temperature prevents changes in colour and flavour.
• 15°C to 21°C group: This range normally applies to produce that needs ventilation and protection from moisture loss, such as potatoes, onions and garlic. For large stores in particular, using T-Light cold store doors gives good control of air movement, preventing early sprouting or mould in these root crops.

Understanding and applying these temperature groups correctly not only optimises the running costs of a cold storage for vegetables but ensures produce always reaches the highest standard for consumers or for export.

Price list for design, installation and construction of cold storage for vegetables in Tan Long

The cost of a cold storage for vegetables in practice depends on a number of detailed technical factors: the storage volume, the temperature range required, the thickness of the insulated panels and the brand of compressor used.

With its turnkey cold store design capability, Tân Long offers the following specification and indicative price table for the most common store types.

Cold storage with temperature from 2 to 10 degrees Celsius at Tan Long 

This is the standard temperature range, suitable for keeping most leafy greens, fresh root vegetables and fruit crisp in the short to medium term.

Cold storage with temperature of minus 10 to minus 20 degrees Celsius at Tan Long 

This deep sub-zero range is used for produce that needs freezing, for long-term storage awaiting export or for onward processing.

Note: The tables above apply to standard industrial cold store models. Depending on the actual floor space and the equipment and materials you choose, the price will vary. For the most accurate cold storage for vegetables construction estimate, please contact Tân Long's engineers directly on the hotline: (+84) 933357058.

Important technical points when installing a vegetable cold store

Investing in and installing a cold storage for vegetables is not merely a matter of lowering the ambient temperature; it requires careful calculation of airflow, insulation and space zoning. To optimise cooling performance and maximise produce storage life, owners should pay particular attention to the following technical factors during cold store design:

• Sensible fan layout: Positioning the industrial evaporators and fans accurately distributes the cold airflow evenly into every corner of the racking. This eliminates “dead spots” (where the temperature is higher than elsewhere), ensures all the produce is cooled evenly, and keeps the compressor from running overloaded — saving electricity.
• Insulating PVC strip curtains: Strip curtains are an essential accessory, normally fitted at the entrance to prevent cold air escaping each time a forklift moves goods in or out. Combined with the absolutely tight T-Light cold store door system, they also let you divide the space into separate storage zones while keeping the environment stable.
• Designing the space with independent zones: A common mistake is storing leafy greens together with ripening fruit. Ripening fruit releases large amounts of ethylene — a plant hormone that accelerates breakdown, making vegetables wilt very quickly. Independent panel partitions are therefore needed to isolate these food groups.
• Precise control of temperature and humidity: Every type of produce requires a completely different microclimate. Rather than adjusting manually, the system should be fitted with an automatic control panel so the operator can set and monitor the temperature and humidity accurately for each product.

Only by following these principles strictly can a cold storage for vegetables perform to its full potential, letting a business minimise spoilage and improve its margin on every harvest.

Tân Long – a leading vegetable cold store design and construction contractor

With deep experience in industrial refrigeration engineering, Tân Long Refrigeration Electromechanical JSC is proud to work alongside hundreds of businesses and produce cooperatives nationwide. We do not simply install equipment; we are committed to delivering a complete cold storage for vegetables solution, technically correct, that keeps produce fresh and optimises the client's margin.

What sets Tân Long's service apart comes down to the following practical values:

• A tailored solution: Our highly qualified engineers survey the site in person and design the cold store around the biology of each vegetable and the business's actual scale of production.
• Genuine, durable materials: Every industrial cold store project Tân Long builds uses equipment meeting international standards. From the high-density panel envelope to the high-capacity compressor pack, everything is carefully selected to keep the system running reliably for more than 20 years.
• Optimizing operating costs: Thanks to careful refrigeration load calculation and an intelligent control panel, the system saves the owner up to 30% of monthly electricity consumption compared with a traditional improvised store.
• Dedicated warranty and after-sales service: We provide a long-term warranty, a professional scheduled maintenance programme and a commitment to 24/7 technical support, so your supply chain is never interrupted.

Investing properly in post-harvest storage is the key to raising the value of Vietnamese produce. If you need a cold storage for vegetables built to food safety standards, contact Tân Long now on the hotline (+84) 933357058 for advice from our specialists and a completely free cost estimate.

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Kiểm Duyệt & Cố Vấn Chuyên Môn

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