|“||Now do you see the importance of extensive testing?||”|
—Edd, after the barrier destroys Jimmy's House
The Baking Powder Vapor Barrier was an untested spy gadget created by Edd and shown in "In Like Ed." Its function was to create a smokescreen-like cloud, allowing time for quick escapes. When used in real life, however, it's capable of creating a massive explosion capable of destroying a house. It was used when the Eds were caught at Jimmy's birthday party. It is one of five experimental machines that Edd has devised. To fool others, it is shaped like a jawbreaker.
- Baking Powder (Fuel)
- Two Halves of Fake Jawbreaker (Magazine)
- Duct Tape (Holds the two Pieces together)
The Eds found out that Kevin wasn't doing anything suspicious and that it was actually a birthday party for Jimmy. In order to save themselves from the Kids' wrath, Eddy threw the jawbreaker-shaped explosive onto the floor. It exploded, covering everything in Baking Powder and (somehow) demolishing Jimmy's house, but the Eds still got their beatings.
- It could be the most powerful weapon in the series, as it was able to demolish an entire house with just one usage.