Does anyone know how long the shelf life is once box/foil bag is opened? Thankyou

Indefinite I would think, though the flavour is likely to become less strong over time.  I have used them for yonks as mint tea is one of those things I tend to have phases for.

Thankyou.

They keep for a long time but i would recommend keeping them well sealed in an iirtight container once opened otherwise the smell will infiltrate everything else in the cupboard :-)

> the smell will infiltrate everything else in the cupboard

I know someone who uses fruit and herb teabags as clothes fresheners in her airing cupboard!  I suspect it's actually quite a cheap option...

To the OP, I agree with the others though about keeping tea well sealed to retain scent and flavour.  Don't ever buy too many at once.  Alternatively just keep some of them wrapped in a foil bag til you need them

> xmlns="http://www.w3.org/1999/xhtml">I know someone who uses fruit and herb teabags as clothes fresheners in her airing cupboard!

what a great idea :-) will have to remember that one

Thankyou, they have been in an airtight container since being unboxed.