Plankton's Chum

Plankton's chum is the signature ingredient in all of Plankton's menu items. As one of several major factors that causes the Chum Bucket to attract no customers, the taste is highly considered foul in contrast to Mr. Krabs' Krabby Patty. Although mentioned in previous episodes, chum first appears in the episode "Friend or Foe."

In When the Cold Breeze Blows Away, it will be mentioned in Chum Bucket that it will be owned by Plankton in during World War III.

Until Alexia's Empire conquered Chum Bucket, it become one of new ingredient virus to turned everyone in Bikini Bottom into mutanted monsters serving for Alexia.