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Coconut shell briquettes have become the preferred fuel for shisha and BBQ markets worldwide due to their long burning time, low ash content, and clean performance. However, true product quality goes beyond appearance. The most trusted international buyers evaluate briquettes based on their durability, which determines how well they survive handling, packaging, and long-distance shipping.
1. Drop Test
The Drop Test is one of the primary methods used to measure the impact resistance of coconut shell briquettes. During this test, briquettes are dropped from a height of about one meter onto a hard surface. The percentage of broken or cracked briquettes is then recorded.
Benchmark for export quality: Less than 5% breakage, indicating strong structural stability.
This test ensures the briquettes can withstand warehouse handling and standard freight movement.
2. Compression Test
The Compression Test measures the maximum pressure a briquette can withstand before breaking. Using a Universal Testing Machine, steady force is applied until the briquette fractures.
Ideal compression strength for high-quality coconut shell briquettes 20–30 kgf
Strong compression performance is essential for maintaining product integrity during pallet stacking and export.
3. Abrasion Test
Abrasion Test evaluates resistance to friction, a common issue during shipping when briquettes rub against each other inside bags or cartons. Briquettes are placed inside a rotating drum that simulates continuous abrasion.
International standard: Mass loss of dust or particles should be below 5%.
This test is crucial for shisha briquettes, where buyers expect clean, hard cubes with minimal dust.
4. Shaking Test
To replicate vibration during long-distance shipping, briquettes are placed on a vibration table for 30–60 minutes. The total number of cracked pieces is then measured.
High-quality briquettes typically show less than 5–7% damage, confirming their ability to withstand transport across continents.
5. Tumbler Test
The Tumbler Test is a more intense durability test where briquettes are rotated inside a metal drum to simulate repeated impacts.
Export-grade threshold: Fragmentation below 5%
This test is a key quality indicator for markets such as the Middle East and Europe, where durability expectations are high.
6. Hardness Test
The Hardness Test measures surface hardness using a durometer. Strong hardness reduces surface chipping and improves overall durability during transportation and storage.
Higher hardness values indicate superior production quality and better resistance to physical damage.
7. Density Test
Density directly affects the burning performance of coconut shell briquettes. Using mass and volume measurements, density is calculated to determine structural compactness.
High-performance briquette standard: Density of 1.0–1.2 g/cm³
Briquettes with proper density burn longer, remain stable on the burner, and produce less ash—features sought after by both shisha and BBQ users.
8. Edge & Corner Strength Test
This test focuses on the weakest points of a briquette: its corners and edges. Light pressure or controlled impact is applied to assess whether the briquette crumbles easily.
Strong edge and corner performance reflects precision in cutting, molding, and drying.
9. Water Drop Test
The Water Drop Test evaluates how briquettes react to moisture. A few drops of water are placed on the surface, and any reaction is observed.
If the briquette cracks quickly, it may indicate incomplete carbonization or poor binder distribution two red flags in briquette manufacturing.
Why Durability Matters in Coconut Shell Briquettes
Durability directly influences Export shipment safety, Customer satisfaction, Market acceptance, Brand reputation, Burning stability and performance
Buyers in premium markets consistently choose suppliers who demonstrate strong durability testing procedures and consistent results.
Conclusion: Durability Defines Quality
Durability testing is essential for ensuring that coconut shell briquettes meet global standards for shisha and BBQ applications. Briquettes that pass these tests demonstrate exceptional strength, structural consistency, and shipping resilience.
With proper testing, manufacturers can confidently deliver export-quality briquettes that maintain performance from factory to end user.
