Since wine generally increases in value and flavour as it ages, putting new wine in bottles that had previously been used for older and more expensive wine is a scam. The phrase generally indicates intellectually dishonest practice, such as attributing memes to ancient authority. read more
Old wine in new bottles' basically mean that the wine sits in the factory for long amounts of time and when it is the right time to put them in the bottles they use new ones. That is were the phrase comes from. read more