Ah yes 😄 — this is one of those super-simple “oven rack hack” cleaning tricks! It works surprisingly well because it soaks the grime in a controlled space, making scrubbing almost unnecessary. Here’s the safe, step-by-step way to do it:

🧽 Oven Rack Cleaning Hack (Plastic Bag Method)

What You Need:

• 1 large heavy-duty trash bag or extra-large freezer bag

• 1/2–1 cup ammonia (or a commercial oven cleaner alternative)

• Gloves

• Old towels (to protect surfaces)

Instructions:

1️⃣ Place oven rack in the bag:

• Make sure the rack fits loosely; it can be slightly folded if needed.

2️⃣ Add ammonia:

• Pour about 1/2–1 cup ammonia into the bag.

• The fumes help break down grease overnight.

3️⃣ Seal the bag tightly:

• Leave it on a towel or in the sink to catch any leaks.

• Let it sit overnight (8–12 hours).

4️⃣ Remove and rinse:

• Carefully open the bag (wear gloves!).

• Rinse the rack under hot water. Most of the gunk should wipe off easily with a sponge.

5️⃣ Optional:

• For any remaining spots, use a soft-bristled brush or scrub pad.

⚠️ Safety Tips:

• Use gloves and work in a ventilated area — ammonia fumes are strong.

• Never mix ammonia with bleach — it creates toxic gas.

• Heavy-duty trash bags are best; thin bags can leak.

💡 Bonus Tip:
If you want a chemical-free version, you can soak racks in hot water + baking soda + dish soap in your bathtub overnight — works almost as well for lighter grime.

If you want, I can also give a 5-minute quick hack for lightly dirty racks that doesn’t require ammonia or soaking overnight — perfect for maintenance cleaning.