What You Need to Know
During infusion, volatile phenolic compounds (e.g., guaiacol, syringol) and aldehydes (e.g., hexanal) dissolve into the triglyceride matrix, forming non‑covalent interactions that modify flavor and oxidative stability. The process can also reduce free fatty acids, modestly raising the oil's smoke point. Excessive heat or prolonged exposure accelerates lipid oxidation, generating off‑flavors and polymerized polymers.
The Science
Primary Reaction
Physical dissolution/adsorption of volatile phenolics and aldehydes into the oil matrix