Deeper takes.
The research behind Frypedia surfaces patterns that deserve more than a chain page. This is where we write them up — arguments, investigations, and field-tested observations on the fast-food fry.
The Cold Eight
Only eight chains on Frypedia serve fries genuinely safe for vegans, celiacs, and dairy-free diners. What do Five Guys, Chick-fil-A, In-N-Out, Mission BBQ, Hopdoddy, P. Terry's, Dick's Drive-In, and Elevation Burger share?
NO. 02 · 7 MIN READThe tallow reversion
McDonald's dropped beef tallow in 1990 under health pressure. Five chains on Frypedia still use it — and a cultural shift is making that number grow, not shrink.
NO. 03 · 5 MIN READWhy the fryer matters more than the ingredient list
Thirty-plus chains on Frypedia have fries that are gluten-free by ingredient but unsafe for celiacs because of shared fryers. An argument for why "dedicated fryer" should be as visible as "gluten-free."
NO. 04 · 6 MIN READThe FAT Brands three-way
Three burger chains, one parent company, three different fryer philosophies. Why the fry recipe is the last thing a holding company touches — and the last thing it stops paying for.
NO. 05 · 5 MIN READThe White Castle multi-recipe mystery
The oldest burger chain in America runs three different French fry recipes, depending on where you eat. What happened, why it happened, and why it matters.
NO. 06 · 8 MIN READThe regional holdouts
Ten chains, ten different fry programs. What happens when a regional chain refuses to standardize to the national QSR default.
NO. 07 · 6 MIN READIs the seed-oil panic changing what chains fry in?
Steak 'n Shake switched to beef tallow in January 2025. One switch, or the start of a pattern? What we're watching for in 2026-2028.
NO. 08 · 7 MIN READThe Mission BBQ methodology
Mission BBQ's fries don't appear on any official allergen chart as "celiac-safe." We list them as Suitable with a source note. Here's what that means, how we got there, and why the gap between chain disclosure and field reality keeps mattering.
NO. 09 · 8 MIN READThe economics of the Cold Eight
Running a dedicated fry fryer costs money every single day. So why do eight chains pay it? Breaking down the unit-economics behind the fry programs that actually work for celiacs — and why the other forty-six chains have done the math differently.
NO. 10 · 9 MIN READWhich fast food fries are vegan? The real list.
"Vegan by ingredient" and "actually vegan" are different standards. Eight chains satisfy the strict version; forty-one are plant-based at the ingredient level but shared-fryer-compromised; five are never vegan. The full guide.
NO. 11 · 8 MIN READThe McDonald's Canada paradox
Same chain, same supplier, same packaging. Different recipe. Canadian McDonald's fries are plant-based at the ingredient level; the American ones contain "natural beef flavor." The chain has been making both for thirty-six years. The story of why.
NO. 12 · 7 MIN READWhat is "natural beef flavor"?
The eleven-word phrase on the US McDonald's ingredient list that cost the company ten million dollars in 2002 and still disqualifies the fries for vegetarians, vegans, celiacs, alpha-gal, kashrut, and halal observers today. A full explainer on the hydrolyzed-wheat-and-milk flavoring built from rendered beef tallow.
NO. 13 · 8 MIN READWho grows the potatoes.
Behind the sixty chains on Frypedia stand three potato processors: Simplot, McCain, and Lamb Weston. How Simplot's Portage la Prairie plant explains Canadian McDonald's — and why the processor often sets the fry recipe before the chain does.
NO. 14 · 9 MIN READThe MAHA fry report card.
Steak 'n Shake "RFK'd" its fries and became the MAHA movement's favorite burger chain. But if you score every chain against the movement's own stated criteria — seed oils, dedicated fryers, ingredient-list length, clean label — Steak 'n Shake only scores 7/10. Elevation Burger scores a perfect 10. The chain the movement crowned isn't the chain that best satisfies its own tests.