Maintain stability cold storage temperature This is a crucial factor in preserving the freshness of goods and ensuring strict food safety standards. However, depending on their physicochemical properties, each type of agricultural product, seafood, or pharmaceutical will require a different level of preservation. cold storage temperature Separately designed to optimize energy quality and cost. With over 20 years of construction experience. industrial cold storageIn the article below, Tan Long would like to share a lookup table for accurate temperature parameters and the most effective system operation techniques.
Why is maintaining a stable temperature in a cold storage facility important?
In industrial refrigeration engineering, designing a system capable of maintaining a consistent temperature is crucial. cold storage temperature Precision is not just a technical requirement, but also a vital factor for business survival. Even a temperature fluctuation of just 1-2 degrees Celsius can lead to thermal shock, reducing product quality or causing significant energy waste. At Tan Long, we always prioritize advising on solutions. cold storage installation Integrate an intelligent control system to ensure the following values:
- Quality is ensured and nutritional value is preserved through standardized cold storage temperatures: Each food or pharmaceutical product has an "ideal temperature point" to inhibit biochemical reactions and cellular respiration. Maintaining this stability is crucial. cold storage temperature This helps prevent cell structure breakdown, preserving freshness, color, and vitamin content. This is especially important for export agricultural products or high-end foods that require a specific process. cold storage Strictly in accordance with international standards.
- Control the temperature in the cold storage to prevent the growth of bacteria and mold: Bacteria and mold typically thrive in the temperature range of 5°C to 60°C (the danger zone). When cold storage temperature The temperature is lowered below freezing or maintained in the deep negative range using systems. refrigeration compressor At high temperatures, the metabolic processes of microorganisms will be completely halted. Maintaining a stable temperature also helps prevent condensation on the product surface – a leading cause of mold and widespread spoilage.
- Optimize operating costs and save energy consumption: A system has cold storage temperature Constant fluctuations will force the compressor to restart multiple times or run in forced mode, consuming 20-30% more electricity than normal. By using PLC control cabinet In modern systems, the cooling capacity is automatically adjusted based on the actual temperature inside the warehouse, ensuring smooth operation, extending equipment lifespan, and optimizing monthly electricity costs for the investor.
Standard cold storage temperature lookup table for different types of goods.
The setup cold storage temperature Improper construction is the leading cause of volume loss and product quality degradation. Below is a summary table of standard technical specifications compiled by experts at Tan Long from the practical experience of hundreds of projects. industrial cold storage nationwide:
| Type of goods | Cold storage temperature (°C) | Relative humidity (%) | Maximum storage time |
| Fruits, agricultural products | 2°C to 12°C | 85% – 95% | 2-6 months |
| Frozen seafood | -18°C to -25°C | 90% – 95% | 6-12 months |
| Fresh meat | -1°C to 2°C | 85% – 90% | 7-10 days |
| Pharmaceuticals, Vaccines | 2°C to 8°C | 45% – 65% | By expiration date |
| Agricultural seeds | 5°C to 10°C | < 40% | 1-2 years |
Cold storage temperature for agricultural products (Fruits, vegetables: 2°C – 12°C)
Agricultural products continue to respire after harvesting. If cold storage temperature If the temperature is too high, the respiration rate increases sharply, causing the fruit to ripen and rot quickly; conversely, if the temperature is too low, it can cause "frostbite" to the cells.
A temperature range of 2°C – 12°C is ideal for inhibiting the production of ethylene gas (a ripening agent) and maintaining the freshness of agricultural products. To achieve this stability, Tan Long often advises customers to use a system. industrial refrigeration It has the ability to distribute air evenly throughout the warehouse, avoiding temperature inconsistencies between different packages.
Cold storage temperature for seafood (-18°C to -25°C)
For exported shrimp, fish, and squid products, cold storage temperature The temperature must reach very low levels (usually -18°C to -25°C) to completely inhibit the activity of microorganisms and enzymes that cause decomposition.
At this temperature, the process of ice crystallization occurs within the cells, helping to preserve the muscle structure and characteristic flavor. Operating the warehouse at very low temperatures requires a sophisticated system. refrigeration compressor High capacity and PU panel warehouse shells with a minimum thickness of 100mm prevent heat loss, ensuring product safety during long-term storage.
Cold storage temperature for pharmaceuticals and vaccines: (+2°C to +8°C)
Pharmaceutical storage is a field that demands absolute technical precision because temperature deviations can damage the drug's activity. Cold storage temperature For pharmaceuticals and vaccines, storage conditions are typically maintained within a narrow range of +2°C to +8°C according to GSP (Good Storage Practices) standards.
At Tan Long, we integrate the system. PLC control cabinet It features automatic temperature logging and SMS/Email alerts. This allows pharmaceutical companies to easily monitor and retrieve data, ensuring that temperatures never exceed permissible limits, even in the event of a power outage.
Technical factors directly affect the temperature stability of cold storage.
Maintain cold storage temperature Stability depends not only on the settings on the control panel but is the result of a synchronized electromechanical and refrigeration system. A small error in calculating the heat load or choosing poor-quality materials will cause the system to strain, leading to temperature fluctuations and increased electricity bills. Below are three key factors that Tan Long engineers always prioritize when designing. industrial cold storage:
The T-Light cold storage door's absolute airtightness helps maintain the cold storage temperature.
Doors are the point of most intense heat exchange during loading and unloading. If the door is not airtight or heat escapes through gaps, cold storage temperature The temperature will rise rapidly, forcing the compressor to run continuously to compensate for the heat.
At Tan Long, we offer the following product line: T-Light cold storage door Featuring a unique multi-layered rubber gasket system that tightly seals the door frame, completely preventing the ingress of moisture and hot air from the outside. Especially for ultra-low temperature freezers, T-Light doors are equipped with frame heating resistors to prevent freezing, ensuring smooth and stable opening and closing. cold storage temperature at the optimal level.
Compatibility between refrigeration compressor capacity and industrial evaporator
The selection of equipment capacity must be based on a rigorous thermal load calculation. If refrigeration compressor If the system's capacity is too small for the warehouse volume, it will be unable to bring the temperature down to the required level, leading to product spoilage.
Opposite, industrial refrigeration The cooling unit plays a crucial role in distributing the cold air. If the cooling unit is improperly positioned or the fan power is insufficient, the cold air flow will not be able to cover the entire package, causing imbalance. cold storage temperature Between different areas in the warehouse, Tan Long always uses compressors from leading brands such as Bitzer, Mycom… combined with evaporators with appropriate fin pitch to ensure fast and deep cooling performance.
Insulation system (PU/EPS panel) – The "layer" that maintains a stable temperature in the cold storage.
The warehouse shell is constructed from insulated panels that act as a barrier preventing heat loss to the environment. This ensures efficient heat retention. cold storage temperature This largely depends on the density and thickness of this insulation layer:
- EPS Panel: Often used for cold storage and short-term food preservation, offering cost savings.
- PU (Polyurethane) Panel: With its high density (40-42 kg/m³), this is the top choice for maintenance. cold storage temperature Deep freezing temperatures ranging from -18°C to -40°C are achieved thanks to superior thermal insulation and high mechanical strength.
Tan Long is committed to providing standard panel types, connected using Camlock fasteners or tight-fitting tongue-and-groove joints, helping the system retain heat longer even in the event of temporary power outages.
Advanced cold storage temperature control technology at Tan Long
In the era of Industry 4.0, management cold storage temperature Manual methods no longer meet the requirements for accuracy and safety. A modern refrigeration system needs to be able to operate and adjust intelligently to maintain an ideal temperature range without relying too much on human intervention. At Tan Long, we apply deeply integrated control solutions, optimizing cooling performance and extending the lifespan of the entire system. industrial refrigeration system.
Maintaining stable cold storage temperature is achieved through a PLC automation control system.
The heart of the control system at Tan Long is the PLC (Programmable Logic Controller). Unlike conventional temperature controllers, the PLC allows for flexible programming of defrost cycles and coordination of multiple operations. refrigeration compressor at the same time to maintain cold storage temperature with extremely low error margin (only about ±0.1°C).
Usage PLC control cabinet This helps the system operate smoothly, automatically switching to a backup compressor in case of a malfunction, thereby completely eliminating the risk of temperature fluctuations causing damage to goods in the warehouse.
Remote monitoring of cold storage temperatures via IoT and SCADA technology.
To provide investors with a comprehensive and real-time overview, Tan Long integrates remote monitoring solutions through SCADA systems and IoT (Internet of Things) technology. All data regarding cold storage temperatureThe temperature, humidity, and compressor pressure are all digitized and displayed visually on the central screen or mobile device.
Through SCADA monitoring systemTechnicians can access real-time temperature logs (Data Logging). This is a mandatory requirement for GSP or HACCP-certified warehouses, making it easier for businesses to demonstrate strict storage procedures to quality control agencies or export partners.
The system provides instant alerts via SMS and email regarding cold storage temperature incidents.
The biggest risk in cold storage operation is a sudden temperature increase that goes undetected. Tan Long's control technology is designed with a multi-layered warning system. When cold storage temperature If the set safety threshold is exceeded or a power failure occurs, the controller will immediately send an emergency notification via SMS and email to the administrator.
This feature ensures that any fluctuations in cold storage temperature All transactions are processed within the "golden time," helping to protect billions of dong worth of clients' assets. Combined with the use of T-Light cold storage door With its high degree of airtightness, the system will retain heat longer, extending the response time for the technical team in the event of an incident.
A guide on how to adjust the temperature of a cold storage unit simply and accurately.
During operations, depending on the volume of new goods received or changes in product types, managers need to know how to proactively adjust parameters. Understanding how to make these adjustments is crucial. cold storage temperature The control panel not only helps to better preserve goods but also prevents incorrect operations that could cause system errors.
In Tan Long, the systems control cabinet They typically use intelligent microprocessors. Below is the procedure for setting 6 basic parameters (F1 – F6) to help you master them. cold storage temperature easily:
Steps to access the settings:
- Press and hold the button Set (approximately 3-5 seconds) until the screen displays the code. F1.
- Use the arrow buttons (Up/Down) to move between the codes from F1 to F6.
- India Set To enter the desired parameter, use the arrows to increase/decrease the value, then press. Set Try again to save.
Detailed specifications table (F1 – F6):
- F1 – Set target temperature: This is the level cold storage temperature The ideal temperature you want to maintain. For example, if storing frozen meat, set the F1 temperature to -18°C.
- F2 – Temperature Error (Hysteresis): This parameter determines the temperature range at which the compressor restarts. If F1 is set to -18°C and F2 to 3°C, the cooling system will automatically activate when the actual temperature rises to -15°C. Setting F2 appropriately helps protect the system. refrigeration compressor Avoid continuous restarts.
- F3 – Compressor delay time: This is a waiting period (usually in minutes) to protect the compressor from electrical shock or high pressure during restart.
- F4 – Actual temperature calibration: If you use an external thermometer and see a difference from the display on the control panel, use F4 to compensate for the error and ensure accuracy. cold storage temperature The display always accurately reflects the reality inside.
- F5 – Defrost Cycle: Set the time interval between defrosting cycles for the evaporator coil. This is extremely important to ensure that the evaporator coil does not accumulate thick ice, which would hinder the circulation of cold air.
- F6 – Defrosting time: Set the duration of each defrost cycle (usually 15-30 minutes). If the cycle is too short, the ice won't melt completely; if it's too long, cold storage temperature It will be unnecessarily pushed higher.
Tan Long – A leading contractor for precisely controlled temperature cold storage facilities.
With over 20 years of experience in the industrial refrigeration industry, Tan Long proudly serves as a strategic partner for hundreds of major food, agricultural, and pharmaceutical businesses in Vietnam. We understand that in intensive preservation, every degree Celsius difference directly impacts product quality and investor profitability. Therefore, the top priority in all our solutions is temperature control. cold storage installation Tan Long's guarantee cold storage temperature Always maintain the lowest possible margin of error.
By choosing our services, you will receive unique value:
- In-depth design: Accurate heat load calculations based on the specific characteristics of each product type are necessary to select the optimal compressor and evaporator capacity.
- Genuine product: Use cluster refrigeration compressor From leading global brands such as Bitzer, Mycom, Emerson… these help the system achieve deep and stable cooling with long-lasting performance.
- A smart solution: Integration PLC control cabinet and the SCADA system helps monitor, log, and alert to fluctuations. cold storage temperature by phone 24/7.
- Dedicated maintenance: Our on-call technical team is ready to provide timely support and resolve issues, ensuring that your cold chain supply is never interrupted.
Tan Long doesn't just sell equipment; we provide absolute peace of mind regarding the temperature of your products.
Contact Tan Long today for technical advice and the most optimal cold storage quotation:
- Hotline: (+84) 933357058 – Mr. Thinh
- Address: 86 Dong Den Street, Ward 14, Tan Binh District, Ho Chi Minh City
- E-mail: info@tanlongvn.com
- Website: tanlongvn.com
Answers to frequently asked questions about cold storage temperature and preservation techniques.
During the consultation and construction process, Tan Long received many questions from customers regarding operation and optimization of technical parameters. Below is a summary of the most common questions related to this topic. cold storage temperature:
What is the safe temperature for storing food in a cold storage facility?
The temperature will vary depending on the food group. For frozen foods (meat, fish), cold storage temperature The temperature must be maintained between -18°C and -25°C to prevent bacterial growth. For fresh foods (vegetables, fruits), the ideal temperature range is usually from 2°C to 8°C. You can find more details in our service. food cold storage installation Contact us for advice on the precise temperature range for each item.
Why is the temperature in the cold storage rising unusually high even though the machine is running?
There are three main reasons for this situation:
- The defrosting system is malfunctioning. This causes thick layers of ice to build up on the cooling coils, hindering heat exchange.
- Heat loss through doors: If the door seal is leaking or a low-quality door is being used, the solution is to upgrade to a proper system. T-Light cold storage door To ensure a tight seal.
- Out of refrigerant or compressor failure: The pressure needs to be checked immediately. refrigeration compressor to address the issue promptly.
How long can a cold storage facility maintain its temperature after a power outage?
The heat retention time depends on the quality of the warehouse shell (PU panel) and the volume of goods inside. If the warehouse is constructed with high-density PU panels from Tan Long and the doors are tightly closed, cold storage temperature It can maintain stability for approximately 6-10 hours. However, we encourage customers to install a system. PLC control cabinet It has integrated alerts to proactively handle situations (such as running a generator) in case of an emergency.
>> See related article:
