Shisha charcoal strength should not be evaluated with only one test.


A high-quality compressed coconut charcoal cube should maintain sufficient strength at different stages of production and use.


Three important characteristics are green strength, dry strength and hot strength.


What Is Green Strength?


Green strength is the mechanical strength of freshly formed charcoal before complete drying.


Some charcoal manufacturers also call it wet strength.


Fresh cubes with low green strength may:


• Deform

• Crack

• Lose their shape

• Break during transfer

• Become damaged on drying trays


A suitable shisha charcoal binder helps fine charcoal particles remain bonded after forming.


What Is Dry Strength?


Dry strength is the mechanical strength after the charcoal has been dried.


It is particularly important for:


• Packing

• Palletizing

• Storage

• Truck transportation

• Container shipping

• Distribution


Insufficient dry strength can produce chipped corners, broken cubes and excessive charcoal dust.


What Is Hot Strength?


Hot strength describes the ability of the charcoal cube to maintain structural integrity after heating and during combustion.


A cube can have good dry strength but still crack or fall apart when heated.


For this reason, dry strength and hot strength should be evaluated separately.


Why Does Shisha Charcoal Fall Apart While Burning?


Possible causes include:


• Weak internal bonding

• Low briquette density

• Inappropriate binder dosage

• Poor particle-size distribution

• Internal cracking

• Raw-material quality


How Can All Three Types of Strength Be Improved?


Binder selection is important, but strength depends on the complete production process.


Manufacturers should control:


• Charcoal particle size

• Binder distribution

• Moisture

• Mixing time

• Pressing pressure

• Cube density

• Drying conditions


Simply increasing binder dosage without checking the other production parameters is not recommended.


MEIYIHUA Shisha Charcoal Binder


MEIYIHUA shisha charcoal binder is designed to support green strength, dry strength and structural stability during heating when used under suitable production conditions.


For a practical starting point, approximately 3%–5% binder can be tested based on dry charcoal powder weight.


Final dosage should be adjusted according to the customer's actual coconut shell charcoal powder and equipment.