Industrial size shortening (Fallout 4)

Industrial size shortening is a junk item in Fallout 4.

Characteristics
The box seems to be a dark blue, branded "Industrial Large ALL VEGETABLE shortening." It also appears to have 4 cookies displayed on the front. In other words, 210-year-old hydrogenated vegetable oil. Full of trans-fat deliciousness.

Locations

 * One can be found inside the Cambridge campus diner inside the employees-only area.
 * One can be found inside the supply room of the Boston mayoral shelter.
 * One can be found in room 61 of the Harbormaster hotel.