2026-09-17
The Camp Chef Gridiron 36 and Traeger Flatrock 3 Zone stay tied at 9.3, and my griddle ranking holds. With grills and outdoor cooking gear on the September clearance lists, plenty of readers are buying a flat top right now, so this week I want to cover the part that decides whether it still looks good in April: storage.
A carbon steel griddle top is protected by its seasoning, a polymerized layer of oil. That layer is excellent at resisting food sticking and decent at resisting water. What it struggles with is weeks of condensation under a cover in cold, damp weather. The rust I see on second season griddles almost always starts during winter storage.
My routine takes ten minutes. After the last cook of the season, heat the top until the surface is clean, scrape it, and wipe on a very thin coat of high smoke point oil while it is still warm. Wipe until it looks almost dry, because thick oil turns sticky. Let it cool fully before the cover goes on. Pull the propane tank, store it upright outside, and empty the grease cup completely, since old grease attracts pests. If the griddle lives outside, a breathable cover works better than a tight plastic one, and a few moisture absorbing packs under the hood help a lot.
This is where the Weber Slate 36 earns its place in my top four. Its pre-seasoned rust resistant carbon steel top tolerates neglect well, which makes it the easiest choice for anyone who knows they will not do the autumn routine. The Camp Chef Gridiron 36 rewards owners who do the maintenance with the best grease management on my list, rated 9.6.
Every griddle here can last many seasons. Ten minutes in October is what makes that happen.
Rust starts in storage
Most griddle rust I see begins during winter under a cover, when condensation sits on the steel for weeks.
Ten minute shutdown
Heat, scrape, wipe a thin coat of oil while warm, cool fully, then cover.
Tank out, cup empty
Store the propane tank upright outdoors and empty the grease cup to keep pests away.
Low maintenance pick
The Weber Slate 36 rust resistant top is the easiest griddle to own if you skip maintenance.