You've probably snacked on m&ms your whole life. But have you ever wondered how they're made? This article takes a look at the interesting, unique, and delicate manufacture process behind the m&m candy.
From the Upcoming ueue, submitted by Webiny.
Perhaps this will help.
http://www.madehow.com/Volume-3/M-M-Candy.html
Printing
* 6 The single-colored batches are combined into the mixtures of red, yellow, blue, green, brown, and orange. They are then transported to the machine that stamps the "m" on the shells. A special conveyor belt carries the pieces to this machine. Each piece rests in its own indentation. The piece runs under rubber etch rollers that gently touch each candy to print the "m." This machine is specially designed to imprint the "m" without cracking the thin candy shell. The process used is similar to the off-set printing process. Approximately 2.6 million M&Ms' are transported to the etching machine per hour. One hundred million individual M&Ms® can be manufactured per day.