Glass Lined Thermos?

hi all, i make my 3 cups worth of bulletproof coffee in a thermos with the butter and oil in it and sip on it throughout the day, shaking it before pouring etc... but it occurred to me - is it bad for the coffee to be inside a METAL thermos?  if so i might try to find one that is glass lined or something ...


  • if you use it long enough, it'll  be lined with coffee stains so no need to worry


    personally, i wouldn't worry about it too much

  • JimmmJimmm
    edited March 2015

    I do  something similiar with a stainless steel thermos. I would avoid aluminum.

  • ok thanks y'all

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