How we ranked these
Four criteria, and none of them is the criterion that decides our glass-top roundup (the smoothness of the pan’s underside) or our induction roundup (the diameter of the flat base against the burner circle). Gas asks different questions.
1. A flat bottom, because the grate is holding it up
On a gas hob the pan rests on a cast iron grate, not on a surface, so a rough or slightly concave underside is harmless — there is nothing to scratch and nothing that needs full contact. What matters is that the pan sits level on the grate fingers and does not rock when you push food around. Every pan on this page is flat-bottomed and stable on a standard grate. A pan with a pronounced heat ring (the raised ridge on many vintage pans and on the Backcountry Iron Wasatch) is fine here too, which is worth knowing because it rules those pans out on a smoothtop.
Stargazer is the one maker that publishes anything about its own geometry, and it states that its cookware “is designed with concave curvature across the bottom” so the iron has room to deflect as it heats. On glass that curvature is a real argument against the pan. On a grate it is invisible, which is why Stargazer ranks here as the premium pick and ranks below the Lodge on our glass-top page.
2. Pan size against the burner, which gas treats loosely
GE publishes a hard overhang rule for radiant elements — a pan should not hang over more than one inch on each side, so an 8-inch element takes a 10-inch pan at most. We looked for the equivalent rule for gas and GE publishes none. What it does publish is the reason the rule exists at all on gas: air circulation. Flat-bottom griddles are explicitly allowed “because there is room underneath for proper air circulation”, and the one piece of cookware GE refuses outright is the stove top grill, because blocking the burner “will cause incomplete combustion” and can expose you to carbon monoxide above allowable standards.
In practice: match the pan to the burner so the flame sits under the pan’s floor rather than curling up its walls, use the big burner for the 12 and 14-inch pans and a smaller one for the 8-inch, and never cover a sealed burner with anything that smothers it. Lodge’s own enamel instructions state the same principle in one line — preheat “on a burner closest to the size of your cookware”.
3. The handle, because a flame reaches it
This is the gas-specific annoyance nobody warns you about. On an electric element the heat comes from directly beneath the pan; on gas the flame spreads out and up, and a short cast iron handle sitting over the edge of a burner gets hot faster than it does on any other cooktop. It is the single best reason to own a handle holder, and Lodge rates its silicone ASHH41 to 500°F for hands — while instructing that it must not be used in the oven, over a flame, or during cooking. Read that as: slide it on to carry the pan, not to cook with.
Two pans on this page address the handle in the casting itself. The Blacklock 12-inch has what Lodge calls a cool-V cutout, which “reduces the amount of iron in the handle to allow air to flow and keep it cooler longer” — and Lodge adds its own caveat, that it is still iron and prolonged heat will eventually get through. The Stargazer’s long handle simply puts your hand further from the flame. Neither is a substitute for a towel.
4. Heat it slowly, which is GE’s actual condition
“If heated slowly” is doing a lot of work in that sentence. A gas flame is instant and it is concentrated, so a thick pan dropped onto a high flame develops a scorching hot ring over the burner and cool iron at the rim — which is how you get a steak that is black in the middle and grey at the edges. Lodge’s own figure is three to five minutes on medium-low before you cook, then medium-high for most food, and on a grill it says to preheat five to ten minutes and then turn the heat down because the iron holds it.
That is the whole technique, and it is why we do not rank the heaviest pans first here. Full instructions are in how to preheat a cast iron skillet.
What we did not rank, and why
- Stove top grills and grill plates over a sealed burner. GE’s gas guidance says “Do not use stove top grills on sealed gas burners” on combustion grounds. A ribbed cast iron grill pan sitting on the grate like any other pan is a different thing and is fine — see best cast iron grill pans.
- A wok with a ring. GE recommends a flat-bottomed wok on gas and advises against a wok ring or holder, again because it interferes with the burner. Our wok roundup ranks flat-bottomed pans only.
- The 15-inch Lodge. It overhangs almost every domestic burner by a wide margin, so the rim never gets properly hot. Size guidance is in cast iron skillet sizes.
- Enameled skillets. They work on gas, but Lodge explicitly tells you not to preheat an empty enamel pan on a burner, which is exactly what searing wants. They are covered in best enameled cast iron skillets.