Frostvale
Frostvale bottles at the spring rather than trucking water to a plant, and the carbonation is deliberately light: a fine bead stays in the glass longer and does not flatten the food next to it. Nothing is added — there is no mineral blend and no flavouring anywhere in the range.
The juice is pressed, never rebuilt from concentrate, and ships chilled with a fortnight of shelf life instead of a year. That is the whole trade: less convenience for the supply chain, more aroma in the glass.