Now lookie here, even though transatlantic shipping was considerably more expensive in the 80s than it is now, our kids in Stranger Things 3 heal themselves using entire suitcases of imported Swiss chocolate (bottom left next to the character portrait):

This is not the first time the Stranger Things team makes this mistake, look at the lifeguard fanny pack Eleven and Max find:

You can clearly see that this isn’t watertight. It would never keep your Swiss chocolate in edible shape. Boo. Boo, Netflix. 10 points docked for ruining our suspension of disbelief.