The Patrick Microwave is a large microwave strongly resembling Patrick Star. It has three purple buttons on his green pants similar to that of the purple flower pattern on Patrick's own pants, a built-in speaker in his mouth, and a microwave door built on his stomach.
Mr. Krabs purchases the Patrick Microwave as a way for customers to heat up the Frozen Krabby Patties. The Frozen Krabby Patty must be put into a microwave located where Patrick's stomach would be. When the Frozen Krabby Patties finish cooking, the Patrick Microwave makes a "ding" sound in Patrick's voice.
Near the end of the episode, the microwave can be seen scattered in a junk pile in the Krusty Krab, alongside other items from the Krusty Museum, after the secret of the Frozen Krabby Patties being made of sand is revealed.