Store oils away from light and heat to prevent rancidity. Most oils keep for 3-6 months after opening. Vinegars typically keep indefinitely in a cool, dark place. Specialty oils like nut oils should be refrigerated to extend their shelf life.
Balsamic vinegar pairs with strawberries, Parmigiano-Reggiano, and grilled meats. Rice vinegar works well in Asian slaws and dressings. Extra virgin olive oil complements Mediterranean dishes, while sesame oil enhances Asian cuisines. Match the oil's intensity to your dish.