This video examines the reasons why ganache doesn't set and explores different methods for making ganache using various types of cream. It compares the results of making ganache using commercially available chocolate bars and three different liquids: 35% animal-based heavy cream, vegetable-based whipped cream, and milk, all following the same process. Key points highlighted include adding cold heavy cream directly to the chocolate, avoiding overheating, and chilling it thoroughly overnight to set. The video also introduces a technique for recovering from the failure of ganache made with milk, suggesting the addition of cocoa powder. Ultimately, it demonstrates that delicious ganache can be made with milk that is just as good as ganache made with heavy cream.