What this guide covers: Seed oil usage in Whataburger's fried menu, based on Whataburger's own ingredient documentation.
Whataburger fries its French fries and other fried items in a soybean oil-based liquid shortening it brands as "ZTF" (zero trans fat). Soybean oil is a seed oil.
What "ZTF" actually means
Whataburger's own ingredient statement for its French fries reads: "Deep-fried in ZTF (zero trans fat) Whataburger liquid shortening." ZTF describes the shortening's trans-fat content (zero grams), not its oil source. The shortening itself is soybean oil-based.
Contains seed oil: per Whataburger's ingredient documentation
Fry oil: ZTF (zero trans fat) liquid shortening, soybean oil-based. Used across Whataburger's fried menu at most locations.
Why this matters beyond the fries
A shared fryer shortening means any item cooked alongside the fries (onion rings and other fried sides, where offered) carries the same seed-oil exposure, even if that item's own recipe doesn't separately list soybean oil.
Our Pick
Fatworks Pasture-Raised Beef Tallow
Beef tallow is a traditional animal fat with a high smoke point, historically used in commercial cooking before the widespread adoption of seed oils. For at-home cooking reference.
Frequently asked questions
Does Whataburger use seed oils?
Yes. Whataburger fries its French fries and other fried items in what it calls "ZTF (zero trans fat) Whataburger liquid shortening," a soybean oil-based shortening, per Whataburger's own ingredient documentation.
What does "ZTF" mean on Whataburger's menu?
ZTF stands for zero trans fat. It describes the shortening's trans-fat content, not the type of oil. The shortening itself is soybean oil-based, and soybean oil is a seed oil regardless of its trans-fat profile.
Is the same oil used for all of Whataburger's fried items?
The ZTF liquid shortening is used consistently across Whataburger's fried menu at most locations, per the chain's own documentation, though exact sourcing can vary by supplier or region.
Sources
- Frypedia -- Whataburger French Fries: Ingredients, Allergens & Dietary Verdict -- Quotes Whataburger's own ingredient statement for its French fries