Yes, you can mix canola oil and olive oil in any ratio you like. The two oils blend easily, and combining them is common enough that several brands sell pre-mixed versions on grocery store shelves. Mixing them gives you a practical middle ground: more flavor than canola alone, a higher smoke point than extra virgin olive oil alone, and a nutritional profile that pulls strengths from both.
Why the Blend Works
Canola oil and olive oil are both high in monounsaturated fats, the type linked to better cholesterol levels and heart health. Canola oil is about 61% monounsaturated fat, while olive oil comes in around 69%. Mixing them doesn’t create any chemical conflict. They’re structurally similar enough that they combine into a stable, uniform liquid.
Where they differ is in flavor and heat tolerance. Extra virgin olive oil has a distinct fruity, peppery taste and a smoke point around 350 to 375°F. Refined canola oil is nearly flavorless with a smoke point closer to 400°F. Blending the two lets you dial in the balance you want for a given recipe.
Best Ratios for Different Uses
A 3:1 ratio of canola to extra virgin olive oil is the most versatile starting point. This is the ratio many commercial blends use, and it produces a smoke point around 400°F, enough for sautéing, shallow frying, and baking. You still get a subtle olive flavor without it dominating the dish.
For salad dressings or finishing drizzles where you want more olive character, flip the ratio to favor olive oil, something like 2:1 olive to canola. The canola lightens the texture and mellows the flavor slightly, which some people prefer. For deep frying or very high-heat cooking, lean heavier on canola (4:1 or even straight canola) so you stay well below the smoke point.
In baking, the 3:1 canola-to-olive blend works well for savory items like cornbread, focaccia, or savory muffins. For sweet baked goods like cakes or banana bread, you may want to use mostly canola so the olive flavor doesn’t compete with the sweetness.
Nutritional Differences Worth Knowing
The biggest nutritional advantage of blending is improving the omega-3 content. Canola oil contains about 7.4% omega-3 fatty acids, while olive oil has only about 0.6%. Canola also has a much better omega-6 to omega-3 ratio (roughly 3:1 compared to olive oil’s 18:1). Since most people already get plenty of omega-6 from other foods, adding canola to the mix helps balance that out.
Olive oil, on the other hand, brings antioxidants and plant compounds that canola oil lacks, particularly in extra virgin form. These are the compounds responsible for olive oil’s anti-inflammatory reputation. A blend gives you some of both: the omega-3 boost from canola and the protective plant compounds from olive oil.
The Blend Holds Up Better to Heat
One of the more surprising benefits of blending is improved heat stability. Olive oil is significantly more resistant to breaking down under heat than canola oil. In lab testing, researchers found that when heated to 140°F, canola oil began showing signs of degradation in under 5 minutes, while olive oil remained stable for over 7 hours. A 50/50 blend stayed stable for about 4.5 hours, dramatically outperforming canola on its own.
This matters because when oils break down from heat, they produce off-flavors and potentially harmful compounds. Adding olive oil to canola oil makes the blend more resistant to this kind of thermal degradation. So even though canola has the higher smoke point, olive oil is the more stable oil once heat is applied over time, and blending transfers some of that stability.
How to Store Your Blend
A homemade canola-olive blend keeps for about the same length as either oil on its own: roughly 12 to 18 months in a cool, dark place. Commercial blends list shelf lives around 18 months (540 days). Light and heat are the main enemies. Store your blend in an opaque or dark glass bottle away from the stove, and it will hold up fine.
Because olive oil is the more oxidation-resistant of the two, adding it to canola actually helps the blend last longer than pure canola would on its own. If your blend starts to smell like crayons or old paint, it’s gone rancid and should be tossed.