corn or vegetable oil

Vegetable oil is a triglyceride extracted from various plant seeds and fruits, with corn oil being one of the most common variants derived from corn kernels (Zea mays). Corn oil is extracted from the germ of corn kernels, typically through mechanical pressing or solvent extraction, then refined, bleached, and deodorized for culinary use. It is a light golden to pale yellow oil with a neutral flavor and high smoke point (approximately 450°F/230°C), making it well-suited for high-heat cooking. The term "vegetable oil" broadly encompasses oils from sunflower, soybean, canola, safflower, and other plant sources, often sold as blends. These oils are predominantly composed of unsaturated fatty acids, with varying ratios of polyunsaturated to monounsaturated fats depending on the source plant.

Vegetable and corn oils serve as the primary cooking mediums in most modern kitchens, used for sautéing, frying, roasting, and baking. Their neutral flavor and high smoke points make them ideal for applications where oil flavor should not dominate the dish, from deep-frying and stir-frying to vinaigrettes and mayonnaise production. Corn oil specifically is favored in American cuisine for frying and baking, while vegetable oil blends are preferred globally for their cost-effectiveness and consistency. These oils are also used in processed foods, salad dressings, and as a base for commercial mayonnaise and margarine production.