In agricultural product trading and export, moisture content is a physicochemical indicator that directly determines the payment value of a shipment. Even a small deviation can lead to…gap0.1 – 0.5 %hideDue to the high residue level in a 1,000-ton batch, the business suffered losses of hundreds of millions of dong because of the discrepancy in the converted dry matter weight.
This error often stems from temperature imbalances in older generation sample drying ovens. Additionally, vibrations from the factory environment affecting the weighing platform can lead to inaccurate sample batch weight measurements.
Therefore, the rulespyquality control of agricultural products The loss-on-drying method needs to be standardized according to TCVN 10780:2017.This article analyzes the solution of equipping a forced convection drying cabinet and anti-vibration weighing table supplied by Duc Duong.
1. Risk of deviations ian moisture content of agricultural products
1.1 P&L losses due to differences in moisture content (weight conversion)
In commercial contracts for exporting coffee or rice, the final payment value is calculated based on the dry matter content. A discrepancy of 0.3% in the sample moisture content will directly reduce the revenue of the shipment when the delivery is finalized.
The method for determining weight loss during drying at 105°C is strictly regulated in TCVN 10780:2017 (ISO 6673:2003) for coffee and TCVN 5644:2008 for rice. Any discrepancy in data between the factory’s laboratory and the port of delivery will result in contractual penalties.
(Read more: Testing for pesticide residues in agricultural products.)
1.2 The risk of Aflatoxin mold disrupting export markets
If the moisture content in agricultural products stored or transported in sea containers exceeds the limit. 12.5 – 13.0%environmentThis will stimulate fungal growth. SporesAspergillus flavusAn outbreak will produce the extremely dangerous toxin Aflatoxin.
If aflatoxin is detected at the import port, the entire container of goods will be refused customs clearance or forced to be destroyed. This incident severely damages the brand’s reputation and disrupts the corporation’s export supply chain.
2. Control the oven heat map
2.1 Eliminating thermal dead zones with Jeio Tech OF4-05VW
Older types of natural convection dryers often exhibit temperature deviations in certain areas.new3 – 5 degrees Celsius between the upper and lower trays. This blockage prevents the sample in the lower tray from evaporating completely, while the sample in the upper tray has already been scorched.
To completely resolve the above issue, Duc Duong Distribution Forced convection drying oven with window, model OF4-05VWofficial channels Jeio Tech Korea Official.
Forced convection fans maintain uniform temperature in the drying chamber.and +- 0.8 degrees Celsius dumbbellAt 100°C, the double-glazed, heat-insulated tempered glass window allows for direct monitoring of the drying samples without opening the cabinet door, thus preventing heat loss.
| Technical Specifications | Old Generation Natural Convection Drying Cabinet | Jeio Tech OF4-05VW Forced Drying Cabinet |
| Temperature uniformity in the drying chamber | Large temperature difference between trays (3-5 degrees Celsius) | Absolute accuracy of +- 0.8°C at 100°C. |
| Hot air circulation mechanism | Naturally, this creates many thermal dead zones. | Forced-circulation fan with reciprocating hot air |
| State of agricultural product samples | Surface flammable or not fully dried | The steam escapes evenly, and the particles do not denature. |
| Observe the drying process. | You have to open the refrigerator door (causing heat loss). | Tempered glass door for direct viewing |
2.2 Five-speed blower protects the sample drying status
The control system allows for flexible 5-level fan speed adjustment. Operators can easily control the airflow to ensure just the right amount of movement, preventing powdered or granular samples from being blown away.Huh.
This mechanism shortens the process by 30%.This reduces the drying time for agricultural samples compared to conventional equipment. As a result, inspectors can quickly complete the weight loss measurement to release the shipment.
Jeiotech forced convection dryers help maintain temperature uniformity, ensuring the quality of agricultural products
3. Eliminate the loss of trace elements
3.1 Isolating 99% of vibration frequencies using a Granite Anti-Vibration Balance
The gravimetric drying measurement requires weighing the sample batch accurately to within n.approximately 0.0001 g. However, if the analytical balance is placed on…In a typical laboratory, mechanical vibrations from the processing plant would cause the scale readings to fluctuate constantly.
To address this bottleneck, Duc Duong provides Anti-vibration weighing scaleThe surface is made of thick, solid blocks of natural granite.
(Read more: NDF, ADF, and ADL analysis according to international standards for laboratory use.)
The solid stone surface combined with Absorber Pad cushioning absorbs and eliminates 99% of impact.The vibration frequency from the surrounding environment is minimized. As a result, the weighing of the sample always achieves the highest precision.
3.2 Wind shield frame protects and stabilizes the weighing plate
The balance is equipped with an independent wind shield to protect the weighing plate from turbulent airflow from the air conditioning system or exhaust fans in the lab. This feature allows the display screen to quickly set the balance point.
The stability of the weighing plate ensures repeatability for weight measurement during drying. Technicians can be completely confident in the reliability of the data obtained.
To receive a comprehensive standardized solution for agricultural product moisture testing according to ISO/IEC 17025 standards and a free set of documents for validating drying chamber heat maps, please click here. Contact Form for Duc Duong CompanyTo receive immediate support from our engineering team.
4. Validation of the drying chamber heat map
4.1 Heat map evidence using SterilDisk TS01SD Datalogger
Strict laboratory validation standards require businesses to extract a temperature distribution map of the drying chamber. This evidence demonstrates that the temperature at every corner of the drying plate meets the standards.105°C ± 1°C.
Duc Duong Distribution SterilDisk TS01SD temperature measuring deviceofficial import from Tecnosoft Italy Official.
This compact, flat-disc temperature data logger is made of AISI 316L stainless steel and meets IP68 water and heat resistance standards. The datalogger provides accurate measurements with high resolution 0.01 độ C and error only +- 0.1 độ C.
4.2 Automatically extract ISO/IEC 17025 standard audit reports
The SterilDisk TS01SD datalogger automatically exports real-time temperature logs to a Temperature Mapping Report. This digitized data source ensures absolute transparency and cannot be manually modified.
This report is a core component of the equipment validation (IQ/OQ/PQ) documentation. It helps the lab easily pass ISO/IEC 17025 standard audits.
5. Solutions to dispel the fear of “scorching samples”
5.1 Controlling translational heating to protect particle structure
Lab managers’ biggest fear is that samples will be scorched or denatured due to a sudden increase in drying chamber temperature. The PID microprocessor controller on the Jeio Tech OF4 drying oven provides extremely precise reciprocating heating.
This mechanism allows moisture to escape slowly without cracking the shells of agricultural products. As a result, the moisture content measurements obtained between the factory lab and the port lab always achieve 100% accuracy.
5.2 Commitment to readily available spare parts and 24-hour on-site technical support
Duc Duong eliminates concerns about disruptions to the inspection line due to equipment malfunctions with a readily available spare parts policy in Ho Chi Minh City. We always have genuine PT100 sensors, Jeio Tech drying fans, and Tecnosoft dataloggers in stock.
Our team of application engineers is committed to providing on-site technical support throughout the process.24 hours. CThis commitment ensures that the company’s lab remains operational continuously.
6. The ROI problem and the ISO/IEC 17025 documentation
6.1 The ROI problem for protecting batch cash flow
When presenting the budget for equipping a sample drying lab to the Board of Directors, the ROI (Return on Investment) is the most convincing financial indicator. The investment cost for a humidity control system is significantly less than the penalty for breach of contract.One batch of goods had its weight deducted.
The project delivers an immediate ROI break-even point by guaranteeing 100% payment value for each batch of goods. Simultaneously, the system completely eliminates moisture content disputes with purchasing partners.
6.2 Standardizing the entire ISO/IEC 17025 audit documentation
Duc Duong provides a complete set of Installation Quality (IQ), Operation Quality (OQ), and Performance Quality (PQ) verification documents accompanying the equipment. The documentation includes a calibration certificate confirming that the equipment meets national inspection standards.
Transparent heat map evidence allows the QC department to readily extract data when working with assessment teams. This documentation confirms the capabilities…The agricultural product quality inspection force meets ISO/IEC 17025 standards.
Conclude
Standardization of regulationsThe process of inspecting agricultural product quality by precisely controlling moisture content and weight is a key solution to help the factory protect its commercial payment cash flow. The synchronized equipment chain, including the Jeio Tech OF4-05VW forced convection drying oven, granite anti-vibration weighing platform, and SterilDisk TS01SD datalogger, helps control the temperature uniformity of the drying chamber to ± 0.8°C, isolates 99% of factory vibration frequency, and automatically publishes 100% digitized temperature maps.The system completely eliminates the fear of sample scorching or moisture discrepancies at the port of delivery, protecting the value of the shipment and completing the entire assessment documentation to meet ISO/IEC 17025 standards. Duc Duong is proud to be a reputable partner distributing leading agricultural product testing equipment through official channels.
Customers who require consultation on the layout of a weight drying lab and wish to receive a quote for genuine equipment sets, please contact and register at DUC DUONG SCIENCE AND TECHNOLOGY COMPANYTo receive attentive service.
FAQ
1. Why is the Jeio Tech OF4-05VW forced convection dryer superior to a natural convection dryer in drying agricultural products in terms of moisture content?
The OF4-05VW forced convection dryer incorporates a reciprocating hot air circulation fan, maintaining a uniform temperature of +- 0.8°C across all trays. This design eliminates thermal dead zones, ensuring that all drying tray positions achieve uniform moisture removal without scorching the grain surface.
2. How does a granite anti-vibration weighing platform protect the accuracy of a microscale?
The heavy natural granite work surface, combined with an Absorber Pad damping system, absorbs and isolates 99% of mechanical vibrations from the workshop. As a result, the microbalance readings remain stable, ensuring sample weight accuracy down to 0.0001 g.
3. How does the Tecnosoft SterilDisk TS01SD datalogger measure and map the temperature of the drying chamber?
The SterilDisk TS01SD is made of compact AISI 316L stainless steel and is placed directly in the corners of the drying plates. The sensor accurately measures the actual temperature with an error of only ± 0.1°C, automatically recording data to generate a 9-point temperature mapping report.
4. What are the economic implications for businesses in precisely controlling the moisture content of agricultural products to 0.1%?
For large shipments of agricultural products for export, a difference of 0.1% in dry matter weight can result in tens of millions of Vietnamese dong in payment value. Precisely controlling moisture content helps businesses protect their revenue and avoid the risk of Aflatoxin mold growth.
5. What documentation does Duc Duong Company provide for the agricultural product drying lab to achieve ISO/IEC 17025 certification?
Duc Duong provides a complete package of Installation Quality Assessment (IQ), Operational Quality Assessment (OQ), Performance Assessment (PQ) documentation, national standard equipment calibration certification, and commits to on-site technical support at the factory within 24 hours.
