BlamCo was a pre-War company in the United States, producing packaged foods. BlamCo Mac & Cheese was their major product.
Unlike other foods, like apples or eggs, wheat cannot be freeze-dried. How the macaroni remains edible is unclear.
The BlamCo brand has only appeared in Fallout 3, Fallout: New Vegas and Fallout 4 on the box of their product; BlamCo Mac & Cheese.
A box of BlamCo's Mac & Cheese in Fallout 3 and Fallout: New Vegas.
A well-preserved box of BlamCo's Mac & Cheese in Fallout 4.
A box of BlamCo's Mac & Cheese in Fallout 4.