Treat your new grate like a cast iron pan.

Yes, if it’s cast iron — and most good charcoal grates are — you need to season it with oil and high heat before first use. Skip this step and you’re asking for rust within a week, especially if you live anywhere humid.

The process is dead simple. Wash off the factory coating with warm soapy water (it’s often a waxy preservative). Dry it completely. Rub a thin coat of high-smoke-point oil all over — canola, vegetable, or flaxseed work. Then put it on your hot charcoal grill for about 20 minutes until it stops smoking. Let it cool, then repeat once or twice. You’re basically polymerizing oil into a non-stick protective layer.

Stainless steel grates don’t need this, but a light oil rub before cooking still helps. For cast iron? It’s mandatory. Don’t skip it.

Future you will thank present you when you’re not scrubbing rust flakes off your burger.