We have a natural disinclination to drink water from the domestic hot supply. Yet many offices use the hot water on-tap to make coffee or tea.

Why the hesitancy, and is this just an old wive’s tale? Actually, there is a lot of substance in our reluctance.

Many older properties still have lead or copper pipes to deliver the water supply. Hot water dissolves copper and lead more quickly than cold.

Lead damages the brain and nervous system.

Copper contamination can cause liver and kidney deterioration.

So never drink water from the office or domestic hot water supply.