A good vacuum bottle (something most people call a thermos) will hold enough coffee to last the entire day at a job site, and it will keep your drinks hot to the final cup.Compared with smaller travel mugs, food thermoses, or tumblers, a thermos holds more, so you can sip throughout the day or share with others.After comparing 32 thermoses and testing 17, we found that the Stanley Classic Legendary Bottle 2.5 QT was the easiest to hold and pour from, and it kept drinks hot for hours.