The 500ml Puro Smart Thermal Bottle keeps drinks hot for 12 hours and cold for 24 hours. The cap with touch sensitive LCD screen hermetically closes the thermal bottle and indicates the temperature of the liquid contained inside through an easily settable acoustic signal, reminding you to drink every two hours. When the display is green, the drink temperature is optimal, orange when it is hot, red when the temperature is very high, above 60 °. The Puro Smart thermal bottle is made of stainless steel, the best material for storing drinks. It does not get damaged and can be reused countless times. The steel also does not contain bisphenol (BPA Free), does not rust and leaves the organoleptic properties of the liquid contained within it unaltered. The production process of Puro's thermal bottles is low in CO2 emissions.