You know, those flask which usually comes with plastic outer casing but glass inner (usually shinny chrome gold).
I know glass aren't really good for hot water as the temperature difference between the glass & hot water may cause it to crack. But i think these flasks are designed to carry hot water no? How do they counter the cracking issue? Even if there's gap between the glass & plastic, usually the issue arises due to the expansion of inner glass more than the outer. does the chrome reflection of the do anything to prevent this?
Submitted April 02, 2019 at 08:19AM by burningbun https://ift.tt/2TQdQVq
