I am getting ready to start making my own wine but I have a question that has been bugging me. ( pardon the pun) Last fall sitting around a campfire with some friends one of my buddies went into his fathers basement to get some 50 year-old wine in a oak barrel. It tasted ok and drank about 3-4 glasses before there was enough light from the fire I notice some maggot like bugs swimming around the wine. They where about the size of a fruit fly very small. I didnt get sick or anything but in your opinion what was it ?