Guides
Choose and care for your thermos
Compare thermos materials, capacity and lids, with practical guides to cleaning, maintenance and temperature retention for everyday use.
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In this issue
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How Long Does a Thermos Last? When to Clean, Replace a Gasket or Replace the Bottle
A good vacuum bottle does not have a universal expiration date. The body may work for years while a gasket, lid or straw needs replacement earlier.
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9 Coffee Thermos Mistakes That Make It Cool Faster or Smell Worse
Many problems blamed on a bad thermos come from the routine around it: filling a cold bottle, leaving it mostly empty, opening it repeatedly and storing it damp.
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Can You Put a Thermos in the Dishwasher? It Depends on the Model and Lid
Older advice often says never to put a vacuum bottle in a dishwasher, while some current product pages explicitly label particular models dishwasher safe.