What does dry residue at 180oC/198 mg/l mean?
If one litre of Brecon Carreg is heated to 180oC all volatiles and combustibles are driven off. What remains behind is classed as the dry residue. The residue refers to a chemical procedure to measure the mineralization. In normal circumstances these minerals are in solution in the Natural Mineral Water; are consumed along with it, and processed by the body. There is no residue left behind in the bottle.
