Blood sac (Fallout 4)

A blood sac is a junk item in Fallout 4. It is used in crafting Skeeto Spit at Chemistry Stations.

Characteristics
The blood sac (not to be confused with the blood pack) consists of the severed abdomen of a Bloodbug, filled to bursting with blood drained from the bloodbug's latest prey. It is a source of Antiseptic and Fiberglass, possibly as a result of the bloodbug's mutant biochemistry mixed with the blood in its gut.

Locations

 * Found occasionally on dead Bloodbugs.
 * Sometimes found in meat bags.
 * Super mutants may carry blood sacs.