Useful for those who deliberately don't[1] follow ISO 3103/BS 6008:1980 and make their tea in a vacuum glove box so as to steep at room temperature?

[1] some may have practical motivations, others ideological: i.e. those who believe proper tea is theft.

https://en.wikipedia.org/wiki/ISO_3103

https://en.wikipedia.org/wiki/Glovebox