Hi Marco, I would be interested to hear what you think - As you are looking at Welsh roasters, I would recommend "Poblado Coffi". Based in Snowdonia, excellent service and I really like their "Atu Litang", fair price and after a week or so the beans "calmed down" a bit (a little "acidic" at first), very smooth and full bodied coffee.
https://pobladocoffi.co.uk/products/sumatra-atu-lintang
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