From Team Fortress Wiki
The Professor's Pineapple is a promotional miscellaneous item for the Soldier, Pyro, and Demoman. It is a variable amount of flask-shaped pineapple grenades filled with a mysterious glowing orange liquid which replaces the Soldier, Pyro, and Demoman's grenades. The flasks come in two shapes; spherical and conical. The grenades have the Quantum Conundrum "Q" insignia on them.
- The Professor's Pineapple was added to the game.
- Updated the Professor's Pineapple so it can be traded and crafted.
- Backpack sounds updated for the Professor's Pineapple.
- When playing with DirectX 8, the color of the substance inside the grenades is always white regardless of any paint added.
- Swapping between the other classes wearing this can result in the grenades being placed incorrectly on those classes.