Can You Reuse Cooking Oil? The Science of Degradation

Can you reuse cooking oil safely… or are you slowly harming your health? In this video, we break down the hidden dangers of reused cooking oil using simple science you can actually understand. What looks like harmless leftover oil is actually undergoing major chemical changes — including oxidation, hydrolysis, and polymerization — that produce harmful compounds like aldehydes and free radicals. Here’s what you’ll learn: What happens to cooking oil at a molecular level Why reused oil become toxic over time The real health risks (including links to inflammation and disease) How to tell if your oil is no longer safe The safest way to reuse cooking oil (if at all) Repeated heating of oil leads to chemical breakdown and the formation of toxic compounds, which research links to serious health concerns. This is something most people completely ignore in everyday cooking. If you cook at home, this video could change how you use oil forever. WATCH: Why Air Fryers Make Food Crispy Without Oil (Everything Explained)    • Why Air Fryers Make Food Crispy Without Oi...   PLAYLIST:    • Everyday Science Explained Simply   TIMESTAMP 0:00 Can You Reuse Cooking Oil? (The Truth) 1:27 The Chemistry of Cooking Oil Explained 1:41 What Are Triglycerides? (Simple Explanation) 2:13 What Happens When Water Hits Hot Oil 2:40 Heat, Air & Moisture: The Real Damage 3:21 Polymerization Explained (Why Oil Gets Thick) 3:39 How to Tell If Cooking Oil Is Bad 4:36 Health Risks of Reused Cooking Oil 6:21 How to Reuse Cooking Oil Safely 7:37 Final Verdict: Should You Reuse Oil? 👉 Subscribe to Everyday Simple Science with Rey for more simple explanations of how the world really works. #CookingOil #FoodScience #HealthScience #ScienceExplained #KitchenScience #HealthTips #EverydayScience #HowThingsWork #SimpleScience #FoodSafety