Exclusive to: Shipwrecked.
Blubber is an item in the Shipwrecked DLC. It is used to craft Blubber Suits and Windbreakers. Hacking a fully bloated Blue Whale Carcass or White Whale Carcass will drop 2 to 6 Blubber. Blubber cannot be Cooked or used in a Crock Pot. When eaten, it grants 10 Health, and 10 Hunger.