A key stage in the distilling of spirits is that of dilution, whereby purified water is used to reduce the strength of the spirit before bottling. The use of pure, demineralised water is essential in ensuring that the quality of the product is not impacted during the distillation process.
If calcium is present in the water used for the dilution process, it can cause irreversible ‘floc’ (or the formation of calcium oxalate crystals) that turn the spirit cloudy. Magnesium ions and iron also both affect the appearance of the spirit, for the former creates haze and the latter can turn the whisky black.
To remove the risk of waste product, salts and ions need to be completely removed from source water. To achieve this, particle and organics filtration prepares water for our reverse osmosis system. Deionisation resin is then used to polish the water to a pure and ready to dilute quality.