Before a race, drivers drink a lot of water to avoid dehydration. The Formula One cockpits generate a lot of heat and make drivers sweat off their weight during the race. The drivers can lose approximate 2 to 3 litres of water. Sports studies have underlined the importance of fluid level in the body. A person who has lost 4% of body weight can lose up to 40% of their psycho-physical ability.
In the days preceding very hot races like Australia, Malaysia, and Brazil, the drivers can drink up to 8 litres of water.
The F1 cockpits have drinking bottles installed for the drivers. The water in them also has mineral salts. The drivers can drink water from them via pipes.