What oil does Firehouse Subs fry in?
Firehouse Subs cooks with soybean oil.
In detail: Subs are mostly steamed meat/cheese/bread (2-6g PUFA); soybean-oil mayo and ranch add 4-6g, and bagged chips are the highest-PUFA side.
Ordering at Firehouse Subs? Build your meal in the app and see its seed oil total before you pay.
Build my orderFirehouse Subs at a glance
| Fry oil (US) | Soybean oil |
| Seed oils | Yes |
| Beef tallow | No |
| Peanut oil | No |
| Seed oil grade | F (13.4 g average per item, 178 items) |
| Is it a seed oil? | Soybean oil: Yes |
The 5 cleanest things to order at Firehouse Subs
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 |
|---|---|
| Firehouse Salad with Turkey | 0.9g |
| Firehouse Salad | 1.0g |
| Hook & Ladder Salad | 1.4g |
| Firehouse Salad with Ham | 1.6g |
| Firehouse Salad with Grilled Chicken | 2.0g |
Lower PUFA is cleaner. These are estimates from published nutrition data and disclosed oils; preparation varies by location.
Build your Firehouse Subs 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 orderWhat oil do other chains like Firehouse Subs use?
- What oil does Jimmy John's use? Soybean oil
- What oil does Potbelly use? Soybean oil
- What oil does Schlotzsky's use? Soybean oil
- What oil does McAlister's Deli use? Soybean oil
- What oil does Charleys Cheesesteaks use? Soybean oil
- What oil does Quiznos use? Soybean oil
- What oil does Blimpie use? Canola oil
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 Firehouse Subs 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 Firehouse Subs fry in?
Firehouse Subs cooks with soybean oil. In detail: Subs are mostly steamed meat/cheese/bread (2-6g PUFA); soybean-oil mayo and ranch add 4-6g, and bagged chips are the highest-PUFA side.
Does Firehouse Subs use seed oils?
Yes. Firehouse Subs cooks with soybean oil. Its seed oil grade is F, about 13.4 g of polyunsaturated fat per menu item.
Does Firehouse Subs use beef tallow?
No. Firehouse Subs cooks with soybean oil, not beef tallow.
Does Firehouse Subs use peanut oil?
Not that we can find. Firehouse Subs cooks with soybean oil. 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 Firehouse Subs?
Firehouse Salad with Turkey (0.9 g of polyunsaturated fat). Next: Firehouse Salad (1.0 g) and Hook & Ladder Salad (1.4 g).
Which Firehouse Subs item has the most seed oil?
Station Italian (Large), at about 77.0 g of polyunsaturated fat as listed.