Use a chimney starter (with newspaper) or electric charcoal starter for a smokeless, chemical-free method.

Scrub grates with a wire brush while hot, then empty ashes. Use a vinegar-water mix (1:1) for stubborn grease.

Sand rusted areas, apply high-heat spray paint (1200°F+ rated), or patch small holes with JB Weld Extreme Heat. Replace severely corroded parts.