What oil does Smashburger fry in?
Smashburger cooks with soybean oil (frying, confirmed via Smashburger allergen/ingredient disclosures).
The 5 cleanest things to order at Smashburger
Learn this once: a salad with grilled protein and the dressing left off is nearly always the lowest seed oil order anywhere. So the list below sticks to real meals, salads included, never just a water.
| Item | PUFA |
|---|---|
| Burger Patty Only (No Bun) | 2.0g |
| Cup of Homestyle Chili | 3.0g |
| Avocado Green Goddess Salad | 4.0g |
| Classic Grilled Chicken Sandwich | 5.0g |
| Black Bean Burger | 6.0g |
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 Smashburger report card, or where it lands on the Seed Oil Index.
Frequently asked
Does Smashburger use beef tallow?
No. Smashburger cooks with soybean oil (frying, confirmed via Smashburger allergen/ingredient disclosures), not beef tallow. See which chains fry in real fats on Tallow Watch.