Vodka O is the result of two Sydney-based mates who wanted to make a completely purity-free vodka, and started their company on the smell of an oily rag. Made from whey in New Zealand, it’s now crept up to number 3 in the Australian marketplace, and has won a number of awards. It’s also ranked in the top 10% of vodkas worldwide for purity. Not bad for a bargain, and definitely worth keeping on hand.