Rust appearing inside the oven cavity

Symptoms

• Orange or brown spots on the oven floor or walls
• Rust concentrated around a chip or scratch in the enamel coating
• Rust appears worse after exposure to spilled liquid
• Rust flakes visible when wiped

Likely causes

• CommonChipped or scratched enamel coating exposing bare metalOnce the protective enamel is broken, the metal underneath is exposed to moisture and can rust.
• CommonSpilled liquid sitting on an already-chipped areaMoisture accelerates rust development once the protective coating is compromised.
• PossibleUsing metal scouring pads or sharp tools that damage the enamel during cleaningAbrasive cleaning tools can chip the coating, creating new rust-prone spots.
• Less commonAge-related wear on the enamel coating in a heavily used ovenVery old ovens can develop general coating breakdown beyond isolated chips.

What to do

1. Clean the rusted area gently with a non-abrasive cloth and mild cleaner to remove loose rust and debris.
2. Avoid using metal scrapers, steel wool, or harsh scouring pads that can worsen the chip and expose more metal.
3. For small chips, consider a high-temperature-rated appliance touch-up enamel or porcelain repair product, following instructions carefully and letting it cure before use.
4. Wipe up spills promptly going forward, especially near any known chipped or rusted spots.
5. Understand that surface rust on a chip is largely cosmetic if it stays small and doesn't affect function.
6. Monitor the area over time; if rust spreads significantly or metal appears to be thinning, this is more of a structural concern.
7. For significant rust affecting a large area or the oven floor's integrity, have a technician assess whether the liner needs replacement.

Tools and parts

• Non-abrasive cloth
• Mild cleaner
• Appliance touch-up enamel (optional)

When to call a pro

If rust has spread significantly or the metal appears structurally compromised, have a technician assess whether the oven liner needs replacement.

Safety