Minimum specification
- Colour
- Brown to maroon
- Moisture
- max 12 %
- Foreign matter
- max 0.5 %
- Visible mould
- None
- Total ash, dry basis
- max 4 %
- Acid-insoluble ash, dry basis
- max 0.5 %
- Volatile oil, dry basis
- min 7 ml / 100 g
- Sulfur dioxide (SO₂)
- max 30 mg/kg