Home made iced tea, cold brew method.
Just water(1.5litres)and tea(3tablespoons)in the fridge for about 12-16hrs, then strained. Very tasty indeed.
Going to put half a lemon in next time, see what that's like. Not cheap though £10 for 50g of Meghalaya Autumn Fresh tea leafs. Recon that'll make about 5litres. I'm going to have to try a bunch of tea leafs and find something cheaper.
Also need to do the same with coffee.