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The thermos bottle and lid are BPA free and aluminium free..
The material is unreactive, non-toxic and the components of the material do not penetrate the liquid.
12 hot / 24 cold
The thermos bottle keeps your drink hot for up to 12 hours and cold for up 24 hours.
The double wall and vacuum insulation act as a barrier to heat tranfer, so the temperature outside the flask does not affect the temperature of the liquid inside.