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.
I love the loose herbal teas from Sonnentor (Austrian company). They are sometimes leaning towards weird esoteric behavior like until about 10 years ago they drew a line through the EAN-Code… But their tea is amazing and they are also participating in economy for the common good.
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.