Today we’re continuing our round-up tour of the investment-grade wines with round 3 of our 4-part series covering the essentials of the great Bordeaux wines. Here are the key facts that you need to know about the incredibly age-worthy and fantastically complex sweet wines made in Sauternes, outstanding wines made thanks to a fungus that we love to call noble rot. So how are these wines made and how does it explain that they are so special and so thought-after? We’ll cover this as well as which are the top estates and Chateaus, as listed in the 1855 classification.