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If you're unsure how posh you are, and haven't yet taken the official indy100 quiz, maybe a quick scan of your fridge can help you out.
At least, this is what favourite magazine of the Chelsea, Kensington and Sloane Square crew, Tatler, believes.
They've compiled a helpful guide to what should be on the shelves in your kitchen, and we've added a few red herrings.
See how many you get right in the quiz, below: