The following coffee-related events occurred in 1806:
- In an attempt to make France into a completely self-sufficient nation, Napoleon eliminated coffee imports. Chicory was introduced as a complete substitute for coffee. While this system did not last more than a few years, the French continued to use chicory to blend with their coffee. This practice would migrate to the still French-influenced New Orleans and is still considered typical of New Orleans-style coffee.
- The first French patent on a drip coffee pot that brews without boiling is granted.
- The coffee percolator is invented in Paris by American Benjamin Thompson.