Smashburger Seed Oil Report Card
Based on our menu research, Smashburger cooks with: soybean oil (frying, confirmed via Smashburger allergen/ingredient disclosures). Across the 107 menu items we analyzed, it averages 8.1g estimated PUFA per item, earning a seed-oil grade of D (Very High Risk).
Safest Orders 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.
Cleanest full order: Burger Patty Only (No Bun) + 20 oz Fountain Drink, 2.0g total
| 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 |
What to Avoid at Smashburger
| Item | PUFA |
|---|---|
| Crispy Chicken Sandwich | 20.0g |
| Double Green Goddess Bacon Stack Chicken Smash | 16.0g |
| Double Avocado Bacon Ranch Stack Chicken Smash | 16.0g |
| Double Scorchin Chicken Smash | 15.0g |
| Double Deluxe Chicken Smash | 15.0g |
Frequently asked
Does Smashburger use seed oils?
Based on our menu research, Smashburger cooks with: soybean oil (frying, confirmed via Smashburger allergen/ingredient disclosures). Across the 107 menu items we analyzed, it averages 8.1g estimated PUFA per item, earning a seed-oil grade of D (Very High Risk).
What oil does Smashburger cook with?
Our research indicates: soybean oil (frying, confirmed via Smashburger allergen/ingredient disclosures). Preparation can vary by location, so treat PUFA numbers as estimates.
Does Smashburger use beef tallow?
No. Our research indicates Smashburger cooks with soybean oil (frying, confirmed via Smashburger allergen/ingredient disclosures), not beef tallow. For chains that fry in tallow or other real fats, see Tallow Watch.
Is Smashburger seed oil free?
No. Our research indicates Smashburger cooks with soybean oil (frying, confirmed via Smashburger allergen/ingredient disclosures), which includes seed oils. See the lower-PUFA orders above for the cleanest picks.
What is the safest thing to order at Smashburger?
Burger Patty Only (No Bun) is the lowest-PUFA item we analyzed at Smashburger, at an estimated 2.0g PUFA. See the Safest Orders list on this page for more options.
What should I avoid at Smashburger?
Crispy Chicken Sandwich is the highest-PUFA item we analyzed at Smashburger, at an estimated 20.0g PUFA. Fried items and creamy, mayo-based sauces are usually the heaviest.
What are seed oils?
Seed oils — canola, soybean, sunflower, corn, and similar vegetable oils — are extracted from seeds using high heat and chemical solvents. They are very high in polyunsaturated fats (PUFAs), which are unstable at cooking temperatures and can oxidize easily. Many health-conscious eaters choose to minimize seed oils and prefer foods cooked in beef tallow, butter, coconut oil, or olive oil instead. This page shows estimated PUFA grams per menu item to help you make more informed choices. These are estimates — actual values vary by preparation and location. Curious why people avoid them? Read the evidence.
Compare other chains
McDonald's · Burger King · Wendy's · Five Guys · In-N-Out · Whataburger
See where Smashburger lands on the full Seed Oil Index, or check which chains cook in real fats on Tallow Watch. Wondering about a specific dish instead? The Is It Seed Oil food guide answers it for 200+ everyday foods, and the distributor oils page covers what independent restaurants fry in.