The Coffee Break Machine is a Muppet routine created for The Ed Sullivan Show on October 8, 1967, and used again for various productions.
In the sketch, a monster (who would eventually evolve into Cookie Monster) wanders upon a talking machine that has been set in "Auto-Descriptive" Mode. As the machine describes its parts, the monster eats them. Once the machine is finished, the voice of the machine from inside the monster reveals that all these components make up the most powerful exploding device known to man. The monster instantly combusts.
The same proto-Cookie Monster performed the sketch on an IBM training film in 1968 with a slight variation: in this version, the machine is a coffee machine with an explosive anti-vandalism program.
A shorter remake of the Ed Sullivan Show version was made for an episode of The Muppet Show, with the role of the monster played by Luncheon Counter Monster. In this version, when the monster eats the final piece and is told of a powerful weapon of mass destruction, he has a momentary regretful look that he is about to pay an expensive price for his destructiveness and gluttony, then promptly explodes. Statler and Waldorf then comment that the situation is like family dinners at their house.
Luncheon Counter Monster performed the sketch again in a 1987 Muppet Meeting Film titled "The Coffee Break Machine" in which he attacks another coffee maker - the Comp-U-Coffee 2000, only to explode yet again.
Clips of the original sketch are shown in The Muppets: A Celebration of 30 Years, during the opening sequence as well as in a montage of explosions.