No, the color of M&M candies does not affect how they melt. The melting point and behavior of chocolates, including M&M's, primarily depend on the ingredients and the proportions of those ingredients used in the candy's composition, rather than the color coating.
In what year was the M&M candy first made? M&M candies debuted in 1941. They were originally packaged in cardboard tubes and sold only to the military. They became a popular treat amongst soldiers who later clamored for more after the war ended.
There are approximately 350 pieces of candy in a 56 oz. bag of unwrapped Hershey's Kisses. The amount may vary from package to package.
Yes I'm fairly sure they are entirely free of any traces of gluten, but it should tell you on the label.
I'm not sure of their exact date of introduction to the public but, they were developed during World War Two for the US Army. The troops chocolate was melting in their backpacks so the Army commissioned Mars candy company to come up with a solution for the problem. They came up with M and M's but by that time the war was winding down so they put them on the open market. The original slogan was supposed to be melts in your mouth...not in your pack. For the civilian offering they changed it to melts in your mouth, not in your hand.
the current colors of m n ms are brown, orange, red, yellow, green, and blue. Teh colors will vary if there is some sort of holiday m n ms, like valentines day or something.
Production first began in 1941.