Your friend just received an old-fashioned, hand-cranked ice cream machine. She is reading the instruction manual and calls you up to find out the answers to the following questions: Why is rock salt added to ice cream machines, and what is salt's effect on freezing? Use your food science knowledge to answer her questions.

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The Answer of Your friend just received an old-fashioned, hand-cranked ice cream machine. She is reading the instruction manual and calls you up to find out the answers to the following questions: Why is rock salt added to ice cream machines, and what is salt's effect on freezing? Use your food science knowledge to answer her questions.

Your Friend Just Received an Old-Fashioned, Hand-Cranked Ice Cream Machine