Weber Rust-Resistant Griddle Insert for Genesis 400-Series — Frequently Asked Questions
  What is the Weber Rust-Resistant Griddle Insert?
  The Weber Rust-Resistant Griddle Insert is a full-size carbon steel griddle that replaces the cooking grates in your Genesis/Genesis II 400 gas grill (2016 and newer). It transforms your grill into a flat top surface for griddling pancakes, bacon, fajitas, and more.
  What are its key features, specs & materials?
  
    • Material: Carbon steel with surface treatment and “case hardening” to resist rust. 
    • Pre-seasoned: Comes ready to use out of the box with food-grade oils applied. 
    • Dimensions: ~ 1.19″ H × 32.67″ W × 18.67″ D. 
    • Compatible grease management: Has a rear grease slot that aligns with the grill’s system to direct drippings properly. 
    • Compatibility: Fits 4-burner Genesis and Genesis II 400 series grills from 2016 onward. 
    • No coating: Because it relies on seasoning and surface treatment rather than a nonstick coating, it’s safe for use with metal tools.  
  
  How do I install and use it?
  
    1. Remove your existing cooking grates from the grill. 
    2. Place the griddle insert into the same supports or frame used by the grates. 
    3. Light the burners and bring the griddle up to temperature gradually to set seasoning. 
    4. Use it like a large skillet or flat top: cook eggs, burgers, vegetables, fajitas, stir fries, etc. 
    5. Use metal spatulas, scrapers, or tools—since it’s not coated, it tolerates them. 
    6. Monitor grease flow into the grease management system via the rear slot.  
  
  How should I care for and maintain it?
  
    • Clean after each use by scraping residue while the griddle is warm (but not glowing hot). 
    • Do not immerse the griddle in water—wipe or clean in place.  
    • Reapply a thin coat of oil after cleaning to maintain the seasoning layer and protect against rust. 
    • Avoid harsh chemical cleaners or abrasives that damage the steel or seasoning. 
    • Store with the grill lid closed or use a cover to protect from the elements when not in use.  
  
  What advantages and limitations should I be aware of?
  
    Advantages:
    • Converts your grill into a versatile flat-top surface for cooking many types of foods. 
    • Rust-resistant carbon steel ensures longevity if properly maintained. 
    • Pre-seasoned and ready to use out of the box—no long break-in required. 
    • Compatible grease drainage minimizes spills and mess. 
    • Safe to use with metal tools, given no fragile nonstick coating. 
    
    Limitations / cautions:
    • Because it’s steel, poor care or exposure to moisture can lead to surface oxidation if seasoning is lost. 
    • You have to maintain the seasoning regularly to preserve nonstick properties. 
    • The heat distribution depends on your grill’s burner layout—edges may be cooler. 
    • The grease slot must align properly; misalignment can lead to drips or flare-ups. 
    • As with all griddles, food may stick if not preheated or oiled properly.