Specification methodology
Eight pages covering the measurements that appear on a charcoal datasheet. Each explains what the metric measures, why it matters, the general method used, what a buyer should ask for, and where the measurement breaks down.
Nothing here is a Charcoal Hub test result or a supplier claim. The pages describe public standard methods in general terms so that the figures on a datasheet can be read, compared and questioned.
Ash Content in Charcoal
What ash content measures in charcoal, how it is determined by proximate analysis, and why low ash matters for hookah and barbecue buyers comparing suppliers.
Burning Time of Charcoal
What burning time measures, how it varies with size, shape and airflow, why no universal test standard exists, and how buyers should compare figures.
Fixed Carbon in Charcoal
What fixed carbon measures, why it is calculated rather than tested directly, and how it relates to burn quality and to the other proximate-analysis figures.
Ignition Time of Charcoal
What ignition time means for hookah charcoal, why it is a system property rather than a fixed figure, how natural and quick-light products differ, and how buyers should compare it.
Moisture Content in Charcoal
What moisture content means in charcoal, how oven-dry testing works, and why moisture affects ignition, burn performance and shipped weight.
Odor in Charcoal
What odor means for hookah charcoal quality, how feedstock purity and carbonisation drive it, why it is a sensory rather than a laboratory metric, and how buyers assess it.
Size Tolerance in Charcoal
What dimensional tolerance means for charcoal size classes such as 25 mm and 26 mm cubes, why consistency matters for packaging and burn, and how it is measured.
Volatile Matter in Charcoal
What volatile matter is in charcoal, how heating without air measures it, and why it drives ignition speed, start-up smoke and odour.
How the metrics fit together
Moisture, volatile matter and ash are measured directly; fixed carbon is calculated from them. Burning time, size tolerance, odor and ignition time describe physical behaviour and user experience rather than chemistry.
Measured directly
Moisture, volatile matter and ash content — the three components of proximate analysis.
Calculated
Fixed carbon — derived by difference, so it inherits the uncertainty of all three inputs.
Physical performance
Burning time, size tolerance, odor and ignition time — no universal standard; conditions must travel with the figure.