Methodology
Craft
A material does not become a product on its own. It is brought there, slowly, by people who know it.
Our approach
Three beliefs underwrite the way we work.
First, that the raw material decides the ceiling — no process recovers what a poor shell never had. Second, that transformation is a craft of patience: time and temperature, held to a specification, repeated batch after batch. Third, that the proof of the work is testable. Every claim we make about a shipment is a number that can be measured against the sample. We write the specification down before we begin. We test against it before we ship. If it does not meet the line, it does not leave the workshop.
Four principles
- 01
Selection
The first decision is which shells enter the workshop. We buy in lots, not in volumes — a lot is what one collector consigned from one named region in one shipment. Each lot is inspected for moisture, wall thickness, maturity, and contamination, and accepted or returned as a whole. We do not blend rejected material into accepted material to lift the average, and we do not blend regions to mask a weak shipment. The workshop lead and one other person sign off, in writing, with the collector named, the region named, and the weight recorded. Selection is the cheapest place in the process to remove a problem; we spend time here so the rest of the line does not have to.
- 02
Transformation
Selected shell is dried, then pyrolysed in low-oxygen kilns over several hours. The temperature is held in the range that drives off volatiles and leaves the fixed carbon intact — too cool and the briquette will smoke and smell; too hot and the shell turns brittle and the yield collapses. We work to a temperature curve, not a single number, and we keep written records of every batch. The output is raw carbon: black, light, structurally clean. From there it is milled to a controlled particle size, mixed with a small fraction of natural starch binder, and pressed into the geometry the buyer has specified — cube, hexagon, or finger.
- 03
Finishing
Pressed briquettes leave the press soft, warm, and high in residual moisture. They are placed on racks and air-dried for a day, then moved to a low-temperature drying tunnel that brings the final moisture below the threshold on the specification. They are sorted by hand for shape — broken pieces, off-size cubes, and surface defects are pulled out and crushed back to the start of the line. What survives is weighed, packed in inner cartons to the buyer's count, then in master cartons or bulk bags to the buyer's pallet pattern. Every carton carries a batch number that links back to the kiln record and the lot of raw shell it began as.
- 04
Testing
Every batch is tested against the written specification before it is approved for shipment. Fixed carbon, ash, moisture, and volatile matter are measured in the workshop using calibrated equipment. Burn time, spark behaviour, and ash colour are tested by hand against a sample retained from a previous approved batch. A retention sample from the new batch is kept for twelve months. On request, and at the buyer's cost, we send a sample to an independent laboratory — SUCOFINDO, SGS, or Intertek — and supply the certificate with the shipment. We do not ship a batch that does not meet the specification. There is no second tier.
Standards we work to
For coconut shell charcoal briquettes, every order is written against these categories. Numerical thresholds are set per buyer, against the application — shisha, BBQ, yakitori, industrial.
- Fixed carbon
- Percentage by weight, dry basis
- Ash
- Percentage by weight; appearance and colour
- Moisture
- Percentage by weight, as packed
- Volatile matter
- Percentage by weight, dry basis
- Calorific value
- Kcal/kg, dry basis
- Burn time
- Minutes, against the buyer's reference
- Geometry
- Cube, hexagon or finger; to the buyer's millimetre dimensions
- Spark
- Visible spark behaviour against the reference
- Odour
- Neutrality; absence of binder smell
- Packaging
- Inner count, master count, pallet pattern, marking