Firehouse Subs Canada Seed Oil Report Card
Based on our menu research, Firehouse Subs Canada cooks with: no deep fryers in store (meats and cheese are steamed); soybean-oil mayonnaise and soybean-oil Italian dressing/ranch are the main PUFA source; bagged chips are fried by Frito-Lay Canada in vegetable oil (sunflower, corn and/or canola). Across the 39 menu items we analyzed, it averages 5.8g estimated PUFA per item, earning a seed-oil grade of B (Medium Risk).
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Safest Orders at Firehouse Subs Canada
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: Firehouse Meatball Sub (Medium) + Bottled Water, 6.0g total
| Item | PUFA |
|---|---|
| Firehouse Chili | 2.0g |
| Firehouse Salad (no meat) | 3.0g |
| Hook & Ladder Sub (Small) | 5.0g |
| Sweet & Spicy Meatball Sub (Medium) | 6.0g |
| Firehouse Meatball Sub (Medium) | 6.0g |
What to Avoid at Firehouse Subs Canada
| Item | PUFA |
|---|---|
| Turkey Bacon Ranch Sub (Medium) | 15.0g |
| Italian Sub (Medium) | 12.0g |
| Club on a Sub (Medium) | 11.0g |
| Hero Sub (Medium) | 11.0g |
| Smokehouse Beef & Cheddar Brisket Sub (Medium) | 10.0g |
Every Firehouse Subs Canada item, ranked
All 39 items we have for Firehouse Subs Canada, safest first. Values are estimated grams of seed-oil PUFA per item.
| Item | PUFA |
|---|---|
| Bottled Coca-Cola | 0.0g |
| Bottled Orange Juice | 0.0g |
| Bottled Water | 0.0g |
| Fountain Soft Drink | 0.0g |
| Side Salad | 1.0g |
| Broccoli Cheese Soup | 2.0g |
| Firehouse Chili | 2.0g |
| Chocolate Chip Cookie | 3.0g |
| Garlic Bread (White) | 3.0g |
| Firehouse Salad (no meat) | 3.0g |
| Oatmeal Raisin Cookie | 3.0g |
| Kids Hot Turkey Sub | 3.0g |
| Brownie | 3.0g |
| Hook & Ladder Sub (Small) | 5.0g |
| Lay's Classic Chips | 5.0g |
| Doritos Nacho Cheese Chips | 5.0g |
| Sweet & Spicy Meatball Sub (Medium) | 6.0g |
| Firehouse Meatball Sub (Medium) | 6.0g |
| Miss Vickie's Original Chips | 6.0g |
| Hook & Ladder Salad | 6.0g |
| SunChips Original | 6.0g |
| Roast Beef Sub (Medium) | 7.0g |
| Pastrami Sub (Medium) | 7.0g |
| Veggie Sub (Medium) | 7.0g |
| Grilled Chicken Breast Sub (Medium) | 7.0g |
| Pepperoni Pizza Meatball Sub (Medium) | 7.0g |
| Corned Beef Sub (Medium) | 7.0g |
| Virginia Honey Ham Sub (Medium) | 8.0g |
| Engineer Sub (Medium) | 8.0g |
| Italian with Grilled Chicken Salad | 8.0g |
| New York Steamer Sub (Medium) | 8.0g |
| Smoked Turkey & Provolone Sub (Medium) | 8.0g |
| Hook & Ladder Sub (Medium) | 9.0g |
| Smokehouse Beef & Cheddar Brisket Sub (Medium) | 10.0g |
| Firehouse Steak & Cheese Sub (Medium) | 10.0g |
| Club on a Sub (Medium) | 11.0g |
| Hero Sub (Medium) | 11.0g |
| Italian Sub (Medium) | 12.0g |
| Turkey Bacon Ranch Sub (Medium) | 15.0g |
Frequently asked
Does Firehouse Subs Canada use seed oils?
Based on our menu research, Firehouse Subs Canada cooks with: no deep fryers in store (meats and cheese are steamed); soybean-oil mayonnaise and soybean-oil Italian dressing/ranch are the main PUFA source; bagged chips are fried by Frito-Lay Canada in vegetable oil (sunflower, corn and/or canola). Across the 39 menu items we analyzed, it averages 5.8g estimated PUFA per item, earning a seed-oil grade of B (Medium Risk).
What oil does Firehouse Subs Canada cook with?
Our research indicates: no deep fryers in store (meats and cheese are steamed); soybean-oil mayonnaise and soybean-oil Italian dressing/ranch are the main PUFA source; bagged chips are fried by Frito-Lay Canada in vegetable oil (sunflower, corn and/or canola). Preparation can vary by location, so treat PUFA numbers as estimates.
Does Firehouse Subs Canada use beef tallow?
No. Our research indicates Firehouse Subs Canada cooks with no deep fryers in store (meats and cheese are steamed); soybean-oil mayonnaise and soybean-oil Italian dressing/ranch are the main PUFA source; bagged chips are fried by Frito-Lay Canada in vegetable oil (sunflower, corn and/or canola), not beef tallow. For chains that fry in tallow or other real fats, see Tallow Watch.
Is Firehouse Subs Canada seed oil free?
No. Our research indicates Firehouse Subs Canada cooks with no deep fryers in store (meats and cheese are steamed); soybean-oil mayonnaise and soybean-oil Italian dressing/ranch are the main PUFA source; bagged chips are fried by Frito-Lay Canada in vegetable oil (sunflower, corn and/or canola), which includes seed oils. See the lower-PUFA orders above for the cleanest picks.
What is the safest thing to order at Firehouse Subs Canada?
Firehouse Chili is the lowest-PUFA item we analyzed at Firehouse Subs Canada, at an estimated 2.0g PUFA. See the Safest Orders list on this page for more options.
What should I avoid at Firehouse Subs Canada?
Turkey Bacon Ranch Sub (Medium) is the highest-PUFA item we analyzed at Firehouse Subs Canada, at an estimated 15.0g 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. New to the topic? Start with what seed oils are and the complete list, or read the evidence on why people avoid them.
Compare other chains
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See where Firehouse Subs Canada 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.