While it is technically possible to use aluminum foil to create a makeshift pot for soup, it is not recommended due to safety and health concerns. Aluminum foil can melt or tear when exposed to high heat, potentially releasing harmful substances into the food. Additionally, using aluminum foil for cooking can lead to uneven heating and may not be suitable for maintaining the necessary temperature for a proper simmer. It's best to use a proper pot made of materials designed for cooking, such as stainless steel or cast iron, to ensure safety and better cooking results.