Online platforms are the most reliable way to find all three flavors (Original, Coffee Flavor, and Cocoa Blend) and larger bulk sizes.
You can buy Postum, the classic caffeine-free coffee substitute, through several major online retailers and specific regional grocery chains. While it was discontinued by Kraft in 2007, it was brought back by Eliza's Quest Foods and is widely available again. Where to Buy Online where can i buy postum coffee