All the supermarkets seems to sell the same brands and I have no idea if any of them are mostly processed in Europe or elsewhere in the world.
Do you have recommendations? I like the ones with a fruity taste more.
This one is my current favorite:
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They claim on the package that they care about sustainability, better working conditions and social engagement.
Portugal has the oldest tea plantation in Europe, in the Azores. It’s one of the only places in the entire continent with the necessary weather to grow tea. Give it a try.
https://gorreana.pt/en/
Their Hysson is pretty tasty, with a slight honey aroma. I can recommend it.
This place has also an interesting history and you can visit their very traditional processing facilities on Sao Miguel island.