...we did some very delicate drilling to produce enough ceramic powder and then treated it with a chemical technique that extracts molecules called lipids... from the fats, oils and waxes of the natural world and are normally absorbed into the material of the prehistoric pots during cooking, or, in this case, through heating the milk. Luckily, these lipids often survive for thousands of years. We regularly use this technique to find out what sort of food people cooked in their ancient pots. It seems they ate many of the things we eat today, including various types of meat, dairy products,...