Which thermos keeps things hot the longest? After our tests, the Zojirushi SJ-JS10 had the best heat retention, with the Stanley Legacy Quadvac Thermal Bottle and GSI Outdoors Glacier Stainless 1 L Vacuum Bottle not far behind it. Which thermos stays hot longest? Which thermos keeps things hot the longest? After our tests, the Zojirushi … Read more
The number one thing to look for in a thermos is how well it retains the heat of the beverage Keep in mind that larger thermoses often will help retain heat more since hot water has a high heat capacity—the more water there is in the thermos, the slower it will cool down. Which coffee … Read more
The best thermoses can keep coffee hot up to 24 hours These are usually vacuum-insulated and made of stainless steel—a material that retains heat longer than plastic. The majority of thermoses fall below this 24-hour figure, however. A more common range is anywhere from five to 12 hours. Can you put hot coffee in a … Read more