Vacuum insulated stainless steel vessels have taken the world by storm over the last couple of decades, mainly because of their superior temperature retention compared to plastic bottles. Stainless steel vessels not only help eliminate single-use bottles in the world, but they also allow your drinks to stay hot for 8+ hours and cold for over 24 hours. Due to the vacuum insulation between the two walls of the vessel, it prevents thermal transfer through conduction. TMF manufactures over 3 million stainless steel vessels a year in a variety of custom shapes, sizes with different artwork offerings.