Walnut Oil

What Is Walnut Oil?

Walnut oil is a nutty, aromatic vegetable oil made by pressing walnut kernels (Juglans regia). The cold-pressed form in particular preserves the characteristic aroma and nutritional value of walnuts.

It is high in polyunsaturated fatty acids, especially omega-3 (ALA). Because these fatty acids are sensitive to heat, walnut oil is generally used in salad dressings and cold applications rather than for frying.

Nutritional Values of Walnut Oil

Like all pure oils, walnut oil contains about 884 kcal of energy and 100% fat per 100 grams; all of its calories come from fat. Notable features include its high omega-3 (ALA) content and vitamin E.

What Are the Benefits of Walnut Oil?

With its polyunsaturated fatty acids and omega-3 (ALA), walnut oil can add variety to the plant-based oils in a balanced diet. Like all oils, it is high in calories and should be used in moderation.

This information is general; walnut oil is a food and is not a substitute for medical treatment.

How to Choose Walnut Oil

Quality walnut oil should be cold-pressed, sold in a dark glass bottle, and have a fresh, nutty aroma; a bitter, paint-like smell indicates spoilage (rancidity). Buying a small bottle helps preserve freshness.

• It should be cold-pressed and in a dark glass bottle to protect it from light
• It should smell fresh and nutty; a rancid smell indicates spoilage
• Choose a small bottle that will be used up quickly

How to Store Walnut Oil

Because walnut oil, with its omega-3 content, turns rancid quickly, it should be stored for a few months in the refrigerator in a dark, sealed bottle. Heat, light, and air speed up rancidity.

Using Walnut Oil in the Kitchen

Walnut oil is used mainly in salad dressings and cold sauces, or drizzled over cooked dishes just before serving; because it is sensitive to heat, it is not preferred for frying or high-heat cooking.

How to Make Walnut Oil Salad Dressing

Whisk walnut oil with a little vinegar or lemon, salt, and spices to make a nutty dressing that pairs well with leafy greens and beet-and-walnut salads.

Why Isn’t Walnut Oil Used for Frying?

Because its high omega-3 content can break down easily with heat and form undesirable compounds, walnut oil is not suitable for high-heat cooking.

What Recipes Use Walnut Oil?

Salad dressings, cold sauces, drizzling over cooked vegetables, and some sweet, nutty recipes are among the best-known uses for walnut oil.

Frequently Asked Questions

Can you fry with walnut oil?

It is not recommended; its heat-sensitive omega-3 fats break down at high temperatures. It is best used in salads and other cold applications.

Why is walnut oil stored in the refrigerator?

Because of its omega-3 content, it turns rancid quickly at room temperature; a cool, dark, sealed environment slows this deterioration.

Can walnut oil be used for babies or children?

It is a vegetable oil used in cooking; however, consulting a healthcare professional before adding oil to an infant’s diet is recommended.

What does walnut oil taste like?

It has a distinct nutty, walnut-like aroma; this flavor adds character to salads and cold sauces.

Can walnut oil be used if it turns rancid?

No; a bitter, paint-like smell indicates rancidity, and the oil should not be consumed for either flavor or health reasons.