Why do chocolate chips harden in milk?

Question

I was drinking milk, and I dropped soft half melted chocolate chips in it and they immediately became hard. The same thing happens if you put chocolate, gummy worms, or any other candy(i think) in milk or ice cream. But if I put oreos, or any cookies, cakes, etc. they soften. Am I missing something obvious. Like does this have to do with the liquid, solid, science cycle? Also, can you give me examples on what else they harden in other then ice cream or milk. Is it the dairy? I really have no idea and was curious.

Answer 1

because it's cold, and stops the chips from melting so quickly and feeling soft.

Answer 2

i may be simplifying this too much but it is probably that the milk or ice cream is cold.  If you had put the chocolate ships in the fridge they would have hardened too!   the cookies get soft because they are porous and the liquid gets in it more.

Answer 3

i think that it has something to do with the textures. chocolate is very waxy, some cheaper chocolates even have wax in them, and wax or waxy things harden when placed in something cold like milk or ice cream. even gummi worms are corn syrup based which hardens as it cools.

oreos cookies and cakes are flour based products that weaken and and crumble when they get wet.

room temperature milk would probably be cold enough to cool chocolate. if you heated it on the stove it would melt the chocolate. the flour products would dissolve regardless of the tempereature.

if you tried this with water or juice of the same temp you would probably get the same reactions.