What oil does Thorntons fry in?
Thorntons most likely fries in soybean and canola oil, but the chain has not confirmed it.
In detail: soybean/canola (fryer items: tenders, wings, donuts, hashbrowns, potato wedges, corn dogs); butter/shortening in biscuits & bakery. Thorntons does not publicly disclose fryer oil brand/type; soybean/canola assumed per typical US convenience-store default.
Ordering at Thorntons? Build your meal in the app and see its seed oil total before you pay.
Build my orderThorntons at a glance
| Fry oil (US) | Soybean and canola oil (estimated) |
| Seed oils | Yes |
| Beef tallow | No |
| Peanut oil | No |
| Seed oil grade | D (8.0 g average per item, 37 items) |
| Is it a seed oil? | Soybean oil: Yes · Canola oil: Yes |
The 5 cleanest things to order at Thorntons
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 |
|---|---|
| All Beef Hot Dog | 2.0g |
| Jalapeño Cheddar Sausage | 2.0g |
| Buffalo Chicken Rollerbite | 3.0g |
| Grilled Cheese | 4.0g |
| Cheeseburger | 5.0g |
Lower PUFA is cleaner. These are estimates from published nutrition data and disclosed oils; preparation varies by location.
Build your Thorntons order
Pick your meal, sides, sauces and drink in the app and see your seed oil total before you order. It logs to your day in one tap. Free on iPhone and Android.
Build my orderWhy 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 Thorntons report card, or where it lands on the Seed Oil Index. See which chains fry in real fats on Tallow Watch.
Frequently asked
What oil does Thorntons fry in?
Thorntons most likely fries in soybean and canola oil, but the chain has not confirmed it. In detail: soybean/canola (fryer items: tenders, wings, donuts, hashbrowns, potato wedges, corn dogs); butter/shortening in biscuits & bakery. Thorntons does not publicly disclose fryer oil brand/type; soybean/canola assumed per typical US convenience-store default.
Does Thorntons use seed oils?
Yes. Thorntons most likely fries in soybean and canola oil. The chain has not confirmed it. Its seed oil grade is D, about 8.0 g of polyunsaturated fat per menu item.
Does Thorntons use beef tallow?
No. Thorntons most likely fries in soybean and canola oil, not beef tallow. The chain has not confirmed it.
Does Thorntons use peanut oil?
Not that we can find. Thorntons most likely fries in soybean and canola oil. The chain has not confirmed it. If you have a peanut allergy, ask the restaurant directly, because oils and suppliers can vary by location.
What is the lowest seed oil order at Thorntons?
All Beef Hot Dog (2.0 g of polyunsaturated fat). Next: Cheeseburger (5.0 g) and Cheese Steak Burrito (5.0 g).
Which Thorntons item has the most seed oil?
Supreme Pizza, at about 17.0 g of polyunsaturated fat as listed.