What's the difference between rock sugar & raw sugar? I'm looking for the general difference as well as calories, usage, and taste.
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By rock sugar do you mean "rock candy"? If possible please send a picture. – Jade So Apr 19 '18 at 7:10
Rock sugar would be chemically the same as regular granulated sugar, but in the form of huge crystals. Some people call it "rock candy", and you can make it, slowly, at home by growing crystals in a syrup made of granulated sugar and water. How it is made at large scale, commercially, I have no idea.
See wikipedia, https://en.wikipedia.org/wiki/Rock_candy. They have a picture:
