M & M's is "color button chocolate". One side of each chocolate is printed with a small letter "m" on the white small letter, which is composed of candy shells surrounding the filling. The candy shells vary according to the type of M & M.

The original candy with half sweet chocolate filling is called "ordinary" variety after introducing other varieties. The first varieties of peanut M & M's are peanuts, milk and chocolate covered peanuts, and finally candy shells, which are still conventional varieties. Many other variants have been introduced, some of which are conventional and frequently used (e.g. peanut butter, almonds, pretzels, crisps, dark chocolate and caramel), while others have limited duration or geographic location. M & M's is the flagship product of Mars Wrigley candy division. The candy originated in the United States in 1941, and has been sold in more than 100 countries since 2003. Every eight hours, New Jersey plants produce more than two billion M & Ms. They are produced in different colors, some of which have changed. The concept of candy coated chocolate was inspired by a method that allows soldiers to carry chocolate in a warm climate without melting it. The company's longest slogan reflects this: "melt in your mouth, not in your hands.". The traditional milk chocolate M & M weighs about 0.91 g / 0.032 Oz, and the food energy is about 4.7 calories (kcal) (the energy in fat is 1.7 kcal). Forrest Mars, the son of Frank C. Mars, the founder of Mars, copied the idea of candy during the Spanish Civil War in the 1930s, when he saw soldiers eating smart people made in England, and the manufacturers of colored granular chocolate shell candy beat hard candy (basically hard syrup) outside to prevent the candy (candy) from melting. Mars patented his own craft on March 3, 1941. In 1941, production began at a factory at 285 badger Avenue in Clinton Hill, Newark, New Jersey. The company was established as M & M limited. The two'm's' represent the names of Forrest E. Mars Sr., founder of Newark company, and Bruce Murrie, son of William F. R. Murrie, President of Hershey Chocolate Company, who owns 20% of the product. This arrangement allows candy to be made from Hershey Chocolate, which at that time controlled the amount of chocolate. The company's first major customer, the U.S. Army, saw the invention as a way to enable soldiers to carry chocolate in a tropical climate without melting it. During the Second World War, candy was sold only to the army. The resulting demand for sweets led to an increase in production, and the company moved the plant to a larger area at 200 North 12th Street, Newark, New Jersey, until it moved to a larger plant in hacketttown in 1958, where it was retained. In 1978, a second factory opened in Cleveland, Tennessee. Today, about half of M & M's production is in New Jersey and half in Tennessee.

In 1949, the brand launched the slogan "melt in your mouth, not in your hands.". In 1950, the black "m" was printed on candy, giving them a unique brand. Changed to white in 1954.

In the early 1950s, the Midwest Research Institute (now MRIg global) in Kansas City, Missouri, on behalf of M & M, perfected the process of coating 3300 pounds (1500 kg) of chocolate per hour. Peanut M & M's was introduced in 1954, but initially only appeared in tan. In 1960, M & M's added yellow, red and green.

In 1976, orange was added to the mixture in place of red, which was discontinued due to the "red dye scare" of red dyes 2 and 4, which had been assessed as naturally carcinogenic. Although M & M is made of less controversial red dye No. 40, the public is wary of dyeing any food red. Red M & M was reintroduced in 1987.

In 2010, pretzel M & M was released. They contain a crispy and salty pretzel center inside the chocolate coating, which is about the size of peanut M & M, but their shape tends to be spherical.

In 2013, M & M's chocolate bars were re released. It was originally released in 2004 as m-azing. In 2014, mega M & M was reintroduced. Prior to this, the "giant M & M" was released in 2007 to promote Shrek's films, known as the "ogre M & M". In 2015, crisp M & M was re launched in the United States. They have remained available in Europe and Australia. In 2016, M & M cookies were reintroduced in the United States. Also in 2016, M & M conducted a flavor vote, where fans could vote for honey nut, coffee nut or chili nut M & M's. Tony Hale declared coffee nuts the winner. In April 2017, M & M's Chocolates began to be sold in Australia. There are six varieties (milk chocolate, strawberry, crispy, hazelnut, crispy mint and almond). Also in 2017, caramel M & M was launched in the US.

In 2019, M & M's taste vote produced three new flavors: British toffee, Mexican pepper and Thai coconut, which won. Also in 2019, hazelnut M & M was released in the US. In 1954, black-and-white advertisements for candy appeared very early. Two of them could talk. The personified M & M characters (a plain and a peanut) dived into a swimming pool full of chocolate. The first incarnation of characters in CGI is the celebrity movement in 1994, in which there are characters interacting with celebrities, and M & M candy color is their favorite role. The event was produced by blue sky studio. At the same time as the blue M & M campaign in 1995, M & M introduced a second "spokes style" of computer animation into its TV advertisements. The depiction and movement of M & M was completed by will Vinton in 1995. Vinton previously created clay animated California Raisins in 1986. During his time on CGI projects, he made M & M's depiction more mature than most food mascots. These include cynical and satirical red (first called by Jon Lovitz, then Billy West), the mascot of milk chocolate, peanut butter and crisp M & M, and the happy and changeable yellow (first called by John Goodman) JK Simmons), who is the mascot of peanut M & M (he was originally introduced as "peanut"). Other mascots include cool one blue (by Rob Pruitt), the mascot of almond M & M. Seductive references to green (her character is the legend of green M & M in the 1970s) by Cree summer and Larissa Murray, the mascot of the dark chocolate mint and peanut butter M & M, and the slightly neurotic orange (by Eric kihberg Kirchberger) suggested that the latter was introduced when crisp M & M was first released and returned when pretzel M & M debuted in 2010. When orange returned, pretzel guy, the second non-M & M mascot, joined in to "support" him and provide useful advice because he hated the idea of putting pretzels in his body.

Other mascots introduced but no longer used are the original green boy almonds. Orange, female peanut character, chocolate bar (by Phil Hartman); the first non-M & M character is always defeated or surpassed by red and yellow when M & M can't melt, and the M & M Mini candy group is portrayed as a destructive but cunning trouble maker, while red and yellow always try to fail. contain.

M & M's female mascot was launched in 1995. Green is the mascot of milk chocolate and Tan is peanut. When they launched the then new blue mascot, the marketing department stopped tan. Since its launch in 1995, green has been M & M's only female mascot until 2012, when M & M launched a new spokesperson, Ms. Brown (Miss America 1984, Vanessa Williams spoke), the "chief chocolate officer". She made her debut in the XLVI Super Bowl ad. at a party, several people thought she was naked because her shell and her interior color were the same, which led red to remove his shell, say, "Oh, that's the party," and then start listening to the lmfao song "sexy and I know" dancing. In a Super Bowl LII ad, Reid found a lucky penny, and hoped that he was inedible, and then became a human. As a human being, he is depicted by Danny DeVito.