Mods: Since this is a food related question you might want to move it to Café Society instead…
I found an opened box of Tetley’s ‘British Blend’ tea I had purchased a few years back on a business trip to the UK. There is a ‘best used by JUN2606’ date on the box.
I must have unsealed the box, taken out and used a bag or two, closed the box and then completely forgot about it. I found it again this morning, took out a tea bag and it worked just fine.
Is there a shelf life for tea where, say, after 50 years it really wouldn’t be very good to drink?
I had been keeping it in a cool dry place for all these years and the humidity here is fairly low if that makes any difference.