Objective: How to make Mocha ice cream at home.

Which of the following solutions is more sound in terms of naive physics reasoning?

Possible answers: -In a medium mixing bowl combine 7 cups chilled water, 2 14 oz. cans boiling coke and 1 can condensed milk and 1 teaspoon vanilla extract. Beat with an electric mixer until soft Peaks form add 1/4 cup premium freeze dried coffee. Transfer mixture to 8x8x2 inch baking pan. Freeze about 8 hours until firm.. -In a medium mixing bowl combine 7 cups chilled whipping cream, 2 14 oz. cans sweetened condensed milk and 1 teaspoon vanilla extract. Beat with an electric mixer until soft Peaks form add 1/4 cup premium freeze dried coffee. Transfer mixture to 8x8x2 inch baking pan. Freeze about 8 hours until firm..
In a medium mixing bowl combine 7 cups chilled whipping cream, 2 14 oz. cans sweetened condensed milk and 1 teaspoon vanilla extract. Beat with an electric mixer until soft Peaks form add 1/4 cup premium freeze dried coffee. Transfer mixture to 8x8x2 inch baking pan. Freeze about 8 hours until firm.