Soundtrack: “The Lovecats”, The Cure Five flavours: sweet, salty, sour, bitter, spicy. I must admit that over the last few years bitter and sour had become almost synonymous for me, thanks to flavours like bitter lemon, I’ve been using bitter to mean sour, and sour to mean bitter. Call it getting old and lazy. So I went back and looked it up: lemon juice/citrus is sour, coffee is bitter. Sour is related to acidity, bitter is more about the other chemistry. It gets confusing with things like beer: beer is acidic, but with the addition of hops it’s bitter. Lemon juice is sour, but lemon rind is bitter. A whisky…