You could literally fry an egg on the tarmac at the Sepang circuit on Friday . The mercury nudged 140°F , but it is the steam-room humidity rather than the pure heat that will make Sunday 's grand prix such a soppy , sapping and exhausting test of survival . Drivers will lose just under 7lb during the 90-minute race . For McLaren ’ s Jenson Button , preparation has included a week at the Thanyapura training facility , exercising outside rather than in the gym to acclimatise to the conditions . ‘ Jenson will wear a cool vest before he gets into the car , ’ explained Button ’ s physio Mike Collier . ‘ It ’ s like an ice pack you would put into a cool box . British driver Jenson Button will have to battle extreme elements at the Malaysian Grand Prix . Red Bull driver Daniil Kvyat uses dry ice to try and cool down in temperatures of around 140°F . ‘ If you have as much as a 10 per cent reduction in body weight during the race , you get the effects of heat stroke — loss of vision and lack of reactions . We want to keep it to under a five per cent reduction . ‘ So he will have a pre-race drink made up of carbohydrates , electrolytes — minerals such as sodium — and protein . Former world champion Fernando Alonso cools down with a cold towel during practice in Sepang . Button 's speeds through a practice session in the Malaysian heat , drivers are expected to lose 7lb in the race . ‘ His supply for the race is contained in a kind of bladder . It is one of the last things to go into the car to keep it as cold as possible for as long as possible . 'He will get the drink by pressing the drinks button on the steering wheel . It goes through a series of tubes and through a hole in his balaclava into his mouth . ‘ The drink will get extremely hot as the race goes on but it will still be beneficial to him . ‘ He will then have a recovery drink over the four to six hours after the race . It is a slightly different composition — higher in carbohydrates , proteins and fats. ’ Button speaks to wife Jessica Michibata ahead of the race on Sunday .
Drivers at the Malaysian Grand Prix will experience extreme heat and humidity . lead driver jack ##son avoided combat conditions by wearing a cool vest and drinking customised pre - fuel and recovery drinks . drivers at the Sepang circuit are expected to lose 7 laps during the race .