What oil does Port of Subs fry in?
Port of Subs cooks with The oil-and-vinegar dressing on every classic sub is pomace olive oil (ingredient statement on the chain's own nutrition portal, July 2026: refined olive pomace oil, extra virgin olive oil, red wine vinegar). Soybean oil is the base of the mayonnaise, ranch, Caesar and honey mustard, and the bread is made with interesterified and hydrogenated soybean-oil shortening. Nothing is fried..
The 5 cleanest things to order at Port of 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 |
|---|---|
| Spinach Salad | 0.1g |
| Garden Salad | 0.2g |
| Caesar Salad | 0.6g |
| Chef Salad | 0.7g |
| #7 Roast Beef Provolone Sub (5" Small) | 0.7g |
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 Port of Subs report card, or where it lands on the Seed Oil Index.
Frequently asked
Does Port of Subs use beef tallow?
No. Port of Subs cooks with The oil-and-vinegar dressing on every classic sub is pomace olive oil (ingredient statement on the chain's own nutrition portal, July 2026: refined olive pomace oil, extra virgin olive oil, red wine vinegar). Soybean oil is the base of the mayonnaise, ranch, Caesar and honey mustard, and the bread is made with interesterified and hydrogenated soybean-oil shortening. Nothing is fried., not beef tallow. See which chains fry in real fats on Tallow Watch.