What oil does Steak 'n Shake fry in?
Steak 'n Shake cooks with Beef tallow for fries (publicly switched to 100% beef tallow in 2025, confirmed on official site); soybean oil for chicken fingers and breaded items.
The 5 cleanest things to order at Steak 'n Shake
| Applesauce | 0.0g PUFA |
| BBQ Dipping Sauce | 0.0g PUFA |
| Famous Fries (regular) | 1.0g PUFA |
| Cheese Fries | 1.0g PUFA |
| Chicken Fingers (4 pc) | 1.0g PUFA |
Lower PUFA is cleaner. These are estimates from published nutrition data and disclosed oils; preparation varies by location.
Why the frying oil matters
Most fast-food chains fry in seed oils like soybean, canola, corn, or a blend of them, which are high in polyunsaturated fat (PUFA). A handful still use beef tallow or other stable fats, which are far lower in PUFA. The oil a kitchen fries in is the single biggest driver of how much seed oil ends up on your plate. See the full breakdown on the Steak 'n Shake report card, or where it lands on the Seed Oil Index.