Types of Laboratory Tests for Edible Oils Testing edible oils ensures they are safe, pure, and of high quality. These tests are crucial for FSSAI compliance , export standards, and consumer trust. Physicochemical Tests These tests determine the basic physical and chemical properties of oils. Test Purpose Moisture & Volatile Matter Indicates shelf life and spoilage risk Refractive Index Identifies purity and type of oil Specific Gravity Differentiates between oil types Color (Lovibond Tintometer) Assesses oil clarity and grade Viscosity Measures flow properties 2. Chemical Quality Tests These determine freshness, oxidation level, and chemical degradation. Test Purpose Acid Value Indicates free fatty acids; higher value means rancidity Peroxide Value Measures primary oxidation; important for shelf life Saponification Value Determines molecular weight and type of oil Iodine Value Assesses unsaturation; helps classify the oil Unsaponifiable Matter Detects impurities like...