In the 1970s, the candies were produced by
The Hershey Company using panning machines that had been used to make
Hershey-ets, a chocolate-filled candy that had been discontinued. The candy was first called "PBs" and was later rechristened as Reese's Pieces. Designers wanted a peanut-flavored candy but had problems with the filling. Original plans called for filling the candy shells with peanut butter, but the oil leaked out into the shell, leaving it soft, rather than crunchy. The developer of the project turned the problem over to a team of outside scientists, who created a peanut-flavored
penuche filling. More experimentation was needed to determine the correct thickness of the shell. Finally, the colors of the candy coating were designed to coordinate with the color of the Reese's package. The color distribution goal is 50% orange, 25% brown, and 25% yellow. ==
E.T. the Extra-Terrestrial==