Final answer:
The 'iced sugar-free double torture' could refer to making sugar-free ice cream, involving chemistry principles like freezing point depression and physical changes. The process includes replacing sugar with alternative sweeteners and using ice to manipulate freezing points while stirring to incorporate air.
Step-by-step explanation:
The phrase 'iced sugar-free double torture' appears to be a non-standard term that might refer to the process of making sugar-free ice cream, which could involve the scientific principles of freezing point depression and physical changes. In the referenced video showing a science experiment in the kitchen, we learn about the behavior of sugar molecules when heated. However, to make a sugar-free ice cream, one would replace sugar molecules with alternative sweeteners and manipulate freezing points by using ice, as shown in the other video demonstrating homemade ice cream preparation using ice and plastic bags.
To create ice cream, a mixture is cooled below its freezing point while being constantly agitated to incorporate air and prevent the formation of large ice crystals. In a sugar-free version, this would involve the use of artificial sweeteners or natural sugar substitutes. This process showcases principles of chemistry, specifically the states of matter and how they change under different temperatures and conditions.