There are minimal differences between brand-name and generic aluminum foil. Both are made from the same material and serve the same purpose. The primary distinctions lie in brand reputation, packaging, and sometimes, thickness or quality control. Brand-name foils may offer more consistent thickness and better quality assurance due to stricter manufacturing processes. Generic foils are often more affordable but can vary in quality. Performance-wise, both should provide similar results for everyday uses such as cooking, baking, and food storage.