Which flask should I buy?

rk_19
rk_19 Posts: 92
in Food and Nutrition
What would keep my green tea warm longer - a plastic thermos or one made of porcelain?

I'm so confused... and bad at physics hahah.

Thanks

Replies

  • AllieBear88
    AllieBear88 Posts: 170 Member
    I'm no professional, but I think anything will work as long as it's insulated (sometimes labeled as double walled), it will be fine. I don't usually keep warm drinks on the go. I have a Dollar Tree travel mug for my coffee, but I keep an insulated cup with lid and straw for my water so it stays colder longer. I love it.
  • dmpizza
    dmpizza Posts: 3,321 Member
    You need a thermal break. All things conduct heat, some more than others. Thermos brand products have a vacuum gap so transmission is minimized. Nothing crosses the vacuum(sort of). Any single layer container will lose heat quickly, although plastic will generally be better than ceramic or steel.
  • ashenriver
    ashenriver Posts: 498 Member
    I have a Contigo travel mug from Costco (Canada)

    It can keep my coffee warm until around 2 pm from a 6-7am fill up

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