Quick Answer

What Oil Does In-N-Out Use for Fries?

In-N-Out is known for its commitment to fresh ingredients, and this extends to their fries. They use 100% sunflower oil to cook their fries. Sunflower oil is a type of seed oil, which means it is high in omega-6 linoleic acid. While sunflower oil is often praised for its high smoke point and neutral taste, it's important to remember that its high omega-6 content can contribute to inflammation and other health issues when consumed in excess.

Does In-N-Out Use Beef Tallow?

Unfortunately for tallow enthusiasts, In-N-Out does not use beef tallow for frying their fries. Beef tallow, which is rendered from beef fat, was once the gold standard for frying due to its rich flavor and stable saturated fat content. In fact, McDonald's famously switched from beef tallow to vegetable oil in the 1990s, a move that many health experts (and flavor aficionados) consider a public health misstep. If you're interested in the health benefits of beef tallow, check out our [beef tallow health guide](https://seedoilscout.com/blog/is-beef-tallow-healthy).

A Brief History of Frying Oils at In-N-Out

In-N-Out has consistently used pure vegetable oils throughout its history. While other fast-food chains, like McDonald's, famously transitioned from tallow to seed oils, In-N-Out has maintained its choice of sunflower oil. This decision aligns with their brand's emphasis on simplicity and their commitment to using fresh, quality ingredients. However, the choice of sunflower oil means those seeking to avoid seed oils might need to look elsewhere or customize their order.

In-N-Out Fries vs Tallow Fries (Health Comparison)

The primary health concern with In-N-Out's fries is their use of sunflower oil. Sunflower oil is rich in polyunsaturated fatty acids (PUFAs), which can lead to lipid peroxidation and oxidative stress, potentially driving chronic disease. In contrast, beef tallow is high in saturated fats, which are more stable during cooking and less prone to oxidation. Tallow fries also offer a richer flavor profile. For a deeper dive into the health impacts of tallow fries, take a look at our article on [are tallow fries healthy](https://seedoilscout.com/blog/are-tallow-fries-healthy).

How to Find Restaurants With Tallow Fries

Finding eateries that use traditional fats like beef tallow can be challenging, but it's not impossible. Many farm-to-table and health-conscious restaurants are beginning to return to these ancestral fats. Using the Seed Oil Scout app, you can locate restaurants that prioritize healthier, traditional cooking oils, including those that use beef tallow. Visit [Seed Oil Scout](https://seedoilscout.com) to download the app and start your journey to cleaner eating.

The Bottom Line

While In-N-Out's fries may not be cooked in the beloved beef tallow, understanding what oils they use can help you make informed dining decisions. If you're committed to avoiding seed oils, consider checking out alternative dining spots through the Seed Oil Scout app. Armed with knowledge and the right tools, you can enjoy dining out while maintaining your health goals. For more details on In-N-Out's oil choices, you can explore our guide on [does In-N-Out use seed oils](https://seedoilscout.com/blog/does-in-n-out-use-seed-oils) or [does In-N-Out use beef tallow](https://seedoilscout.com/blog/does-in-n-out-use-beef-tallow). Ready to make healthier choices? Download the Seed Oil Scout app today and embark on a path to cleaner, more delicious dining. 🫡