Food Safety Testing

16/04/2026

Title:
Frequent Rejections of Southeast Asian Durian and Longan Exports to China! Excessive Pesticide Residues, Heavy Metals, Sulfur Dioxide, and Basic Yellow 2 — FSTest Provides a One-Stop Solution for Smooth Customs Clearance

[News Background]
Recently, Chinese customs authorities have repeatedly identified compliance violations in durian and longan imported from Thailand and Vietnam. Multiple shipments have been rejected and returned, severely impacting exporters’ profitability and customs clearance efficiency.

In the second half of 2025, several batches of Vietnamese durian were rejected due to excessive cadmium (a heavy metal). Meanwhile, Thai longan has frequently appeared on China’s non-entry list due to sulfur dioxide residues exceeding the limits set by China’s Standards for the Use of Food Additives (GB 2760), failing to meet the General Administration of Customs of China (GACC) import requirements.

For Southeast Asian fruit exporters, how to effectively prevent excessive pesticide residues, heavy metals, and Basic Yellow 2 contamination—and successfully pass Chinese customs inspection—has become an urgent challenge.

[Analysis of Causes]

Vietnamese Durian:
Excessive heavy metals in soil and improper use of pesticides (such as thiamethoxam) have led to pesticide residue and heavy metal levels exceeding allowable limits. As a result, shipments fail Chinese customs inspections and are returned, not meeting GACC import standards.

In the processing stage, Basic Yellow 2 is sometimes used for color enhancement and preservation. This substance is classified as a Group 2B carcinogen. Even after peeling, cross-contamination may occur. Since January 10, 2025, China requires all imported durian to be accompanied by a “Basic Yellow 2 Not Detected” report; otherwise, shipments will be returned or destroyed.

Thai Longan:
During processing, sulfite fumigation is commonly used for preservation and color protection. This leads to sulfur dioxide residues far exceeding legal limits, violating Chinese standards and becoming a major reason for customs rejection, failing to meet GACC requirements.

[FSTest Solution]

To address the key challenges faced by Southeast Asian fruit exporters and comply with GACC import requirements, FSTest offers tailored testing solutions to effectively minimize the risk of shipment rejection and ensure compliance with China’s GB 2763 and GB 2760 standards:

1. Sulfur Dioxide Rapid Test Kit
Results in just 5–10 minutes. Suitable for on-site screening in orchards and packing facilities. Quickly detects sulfur dioxide residues to prevent rejection due to excessive additives.
Product: IA32.1201.5 Sulfur Dioxide Test Kit (2 Tests/Kit)

2. Heavy Metal (Cadmium & Lead) Testing
Helps exporters assess soil and product compliance. Provides accurate detection of heavy metal content, eliminating the risk of exceeding limits and ensuring compliance with GACC standards.
Products:

IA32.4670.5 Heavy Metal Cd Test Strip (10 Tests/Kit)
IA32.4671.5 Heavy Metal Pb Test Strip (10 Tests/Kit)

3. Pesticide Residue Testing
Fully aligned with the latest GB 2763 standards, ensuring no prohibited pesticide residues and preventing shipment rejection at the source.

Broad-Spectrum Rapid Test Card:
PR32.7080.5 Pesticide Test Card-Ultra (20 tests/kit)
Detects organophosphorus and carbamate pesticides with one card—fast, efficient, and cost-effective screening.
Targeted Rapid Test Kits:
Over 100 lateral flow pesticide test kits available for precise detection of specific residues such as carbendazim, thiamethoxam, chlorpyrifos, and difenoconazole—providing a comprehensive solution to pesticide residue compliance.

4. Basic Yellow 2 Rapid Test Kit
Product: IA32.1098.5 Basic Yellow 2 Rapid Test Kit
Easy to use, enabling exporters to conduct accurate pre-export screening and reduce laboratory testing costs.

Contact us for customized compliance solutions and ensure smooth clearance under GACC requirements while minimizing the risk of shipment rejection:
www.fstestcorp.com

Core SEO Keywords:
durian import, longan import, Vietnamese durian, Thai longan, customs rejection, excessive pesticide residues, sulfur dioxide exceedance, heavy metals, cadmium exceedance, Basic Yellow 2, carbendazim, thiamethoxam, chlorpyrifos, difenoconazole, GB 2760, GB 2763

12/03/2026

Why Our Porcine Rapid Test is Winning Re-orders

The Pain Point In high-stakes food processing and central kitchens, "visibly clean" isn't enough. Standard ethanol wipes often leave trace biological residues that can trigger cross-contamination risks, leading to costly recalls or export rejections.

24/10/2025

Pesticide residues—especially organophosphates (OP) and carbamates (CM)—are a growing concern in food safety. These toxic compounds can remain on fresh produce, posing significant health risks to consumers.

The FSTest Pesticide Test Card offers a paper-based, rapid pesticide screening tool that uses enzyme inhibition to detect OP and CM pesticide residues with high sensitivity and accuracy. The test is based on the inhibition of acetylcholinesterase (AChE) activity, a proven method in pesticide detection.

When pesticide residues are present, they inhibit AChE, preventing the hydrolysis of indoxyl acetate, thus reducing or eliminating the formation of the blue color on the test strip. The deeper the blue, the safer the sample.

18/09/2025

Your hygiene verification just got faster and simpler! Fstest InstaPro Swab—Surface Rapid Protein Detection Swab delivers clear results in as little as 10 minutes—no instruments required. Perfect for food production, catering, and cleanroom surfaces.

Why You’ll Love It:
1. Ultra-Fast Results: See color changes within 10 minutes
2. High Sensitivity: Detect 80µg in 1 min, 50µg in 5 min, 20µg in 10 min at 21–25°C
3. No Equipment Needed: Just swab, snap, shake, and read
4. Instant Visual Feedback: Easy-to-interpret color scale for quick action

How It Works:
1. Remove swab from the tube
2. Break the blue valve
3. Gently squeeze 3–5 times
4. Shake for 5–10 seconds
5. Read the results—the faster and darker the color, the higher the protein level

Perfect For:
✅ Food production lines
✅ HACCP verification
✅ Catering equipment checks
✅ Cleanroom & GMP surfaces

Don’t wait—upgrade your hygiene checks today!
Be among the first to try our newest solution and ensure safety, save time, and make decisions faster than ever.
https://www.fstestcorp.com/news-detail/id-124.html

24/06/2025

This is a demonstration of the latest MC200 system features.
The main updates in the new system include:
1. Customizable detection standards – Users can now modify preset values for industries and test sites, as well as add new industries and sites.
2. Expanded plan and ID support – The system now supports up to 255 plans and 255 IDs, allowing different clients to set and manage their own unique test workflows.
Surface cleanliness Swab

15/05/2025

Visit FSTest at [LabAsia 2025], Kuala Lumpur – Booth D66 (July 14–16, 2025)

We are pleased to invite you to visit FSTest at Booth D66 during the upcoming [LabAsia 2025], taking place from July 14 to 16, 2025, at:

Tower 2, Level 36, Petronas Twin Towers
Kuala Lumpur City Centre, 50088 Kuala Lumpur
Federal Territory of Kuala Lumpur, Malaysia

At this exhibition, FSTest will showcase our full line of Rapid Testing Solutions to support food safety, hygiene monitoring, and regulatory compliance across various industries.

Featured Solutions:
🔹 Rapid Testing for Exported Foods
1. Bird’s Nest: Detection of aluminum, nitrite, 2. lead, cadmium, and anionic surfactants
3. Durian: Detection of Basic Yellow 2
4. Seafood: Detection of drug residues
🔹 Microbial Rapid Testing
1. 10+ microbial count plates
2. ATP hygiene monitoring system
🔹 Pesticide Residue Rapid Testing Series
🔹 Dairy Safety Rapid Test Strips
4 in 1, 3 in 1 antibiotic residue test strips
Heavy metals (lead and cadmium)
Aflatoxin M1

We would be delighted to welcome you at our booth and demonstrate how our innovations can benefit your operations. Feel free to contact us in advance to schedule a meeting during the show.

Looking forward to seeing you in Kuala Lumpur this July!

Warm regards,
Jonas
FSTest Team
https://www.fstestcorp.com/

27/04/2025

Solve Durian Import Challenges in Just 10 Minutes! 🍍🚢

Facing China’s strict Basic Yellow 2 (Auramine) testing for durian imports? FSTest has the perfect solution with our 10-minute rapid test kit – designed to help you meet compliance and keep your business moving!

✅ Results in 10 minutes – Quick, accurate detection of “Basic Yellow 2 (Auramine)”
✅ No lab equipment needed – Simple, cost-effective, and efficient for exporters and customs
✅ Streamlined screening – Avoid shipment delays and ensure smooth market entry

Stay compliant and protect your business with FSTest’s easy-to-use test kits. Exporters from Thailand, Vietnam, and Malaysia can now ensure faster customs clearance and keep their durian shipments flowing smoothly into China and beyond!

Keep your trade hassle-free, and your customers safe! 🌏💼

Yellow 2 (Auramine)

28/02/2025

Ensure Milk Safety with Confidence – Try the β-Lactams + Tetracyclines + Streptomycins + Chloramphenicol Rapid Test Strip Today!

[Guangzhou, February 27, 2025] – In a significant advancement for dairy quality control, FSTest proud to introduce the β-Lactams + Tetracyclines + Streptomycins + Chloramphenicol Rapid Test Strip, a cutting-edge solution designed to ensure the safety and quality of milk products. This innovative test strip offers a fast, reliable, and cost-effective way to detect multiple antibiotic residues in milk, catering to the needs of dairy farmers, processors, and regulatory bodies.

Key Features of the Milk Test Strip:
Fast Results:
Get accurate results in as little as 7 minutes, enabling quick decision-making and ensuring timely quality control. This rapid turnaround time is crucial for maintaining the efficiency of dairy operations.

Precise Detection:
The test strip provides easy-to-interpret, reliable results, ensuring that users can confidently determine the presence of β-Lactams, Tetracyclines, Streptomycins, and Chloramphenicol residues. Its high sensitivity and specificity make it an indispensable tool for dairy safety.

Cost-Effective:
By streamlining the testing process, the milk test strip significantly reduces testing expenses. Its affordability makes it accessible for small-scale dairy farmers and large-scale processors alike, without compromising on quality.

Proven Quality:
Developed through professional R&D, the test strip boasts reliable performance and consistent accuracy. It has undergone rigorous testing to meet international standards, ensuring that users can trust its results every time.

Why Choose the Milk Test Strip?
The presence of antibiotic residues in milk poses serious health risks to consumers and can lead to regulatory non-compliance for dairy producers. The β-Lactams + Tetracyclines + Streptomycins + Chloramphenicol Rapid Test Strip addresses these challenges by providing a simple, yet highly effective, solution for on-site testing. Its ability to detect multiple antibiotics simultaneously makes it a versatile tool for ensuring milk safety.

Applications:
1. Dairy Farms: Monitor milk quality directly at the source.
2. Processing Plants: Ensure compliance with safety standards before products reach the market.
3. Regulatory Agencies: Conduct efficient and reliable inspections.

Availability:
The milk test strip is now available for purchase. For more information, please visit [Your Website] or contact [Your Contact Information].

About Us:
FSTest, a leading food safety fast testing solution provider in China. Our mission is to ensure a safe and healthy food supply chain and promote the public health care for consumers in China and beyond.