12" Big Green EGG Half-Moon Ceramic Heat Deflector
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12" Big Green EGG Half-Moon Ceramic Heat Deflector
For 20 years, we’ve helped grillers get the most out of their ceramic grills with racks and accessories that fit right and built to last. Whether you're a seasoned pro or just getting started — if you have questions about fit, features, or what you really need, we're here to help
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Have a Question? Give us a call
Whether you have questions about fit, compatibility, or just want a recommendation, we’re here to help - and yes, you’ll talk to a real person who knows a thing or two about kamado grills.
📞 Call us at 940-387-0100, or 📬 send us a message.
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Fast, Reliable Shipping
Most orders ship out same or next business day. And, shipping’s on us for orders over $99.
Live in the DFW metroplex? Swing by and pick it up in-store — we’ll have it ready. Our retail store is located in Denton.
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Tips & Resources
New to kamado cooking or just looking to up your BBQ game? Our guides, gear breakdowns, and how-tos will help you get the most out of your setup.
Check out the Pitmaster's Playbook
Product Description
Add Indirect, Two-Zone and Pizza Capability
12" half-moon ceramic heat deflectors are most commonly used in the Medium Big Green Egg. They also have limited capability when paired with the CGS Woo for Small and MiniMax Big Green Eggs.
Before using 12" deflectors in a smaller setup, measure your grill and rack system. In some cases, the 10" deflector is the better fit. In larger setups, the 14" deflector may be the better choice.
Common Uses:
The 12" half-moons are useful when you want more coverage than a 10" stone and can maintainl airflow around the edge of the fire bowl.
- Medium Big Green Egg: above the convEGGtor or on the CGS Woo for pizza setups
- Medium Big Green Egg: deflector option for EGGspander setups
- Small Big Green Egg: maximum-size deflector option with the CGS Small Woo
- MiniMax Big Green Egg: one half-moon for two-zone grilling
Best for two-zone grilling. Block heat on one side while keeping the other side open for direct cooking.
MiniMax Woo with EGG 12" half-moon deflector.
Best for full indirect BBQ, smoking, roasting and low-and-slow cooks.
Small Woo with a pair of EGG 12" half-moon deflectors.
Three Benefits of Half-Moons
- More options: use one or two depending on your cook.
- Easier handling: half-moons are easier to place and remove than one full-round ceramic stone.
- Lower replacement cost: if one half breaks, you only replace one side.
If your grill appears on the CGS website, check its product page for recommended rack systems, drip pans, spacers and setup details.
Use as a Pizza Stone
If you cook pizza often, go with a full round and dedicate it just for pizza. This helps keep your pizza stone free from grease and BBQ drippings.
When using a stone for pizza, create an air gap between the lower heat barrier and the pizza stone. The air gap helps even out pizza stone temperatures, which is important for cooking the crust evenly.
👉 Pairing Tip: Need to elevate your pan or pizza stone? View our handy Ceramic Spacers, 3 per set.
Remember a Drip Pan
For BBQ cooks, we strongly recommend using a 12" stainless drip pan above the ceramic deflector. Ceramic can absorb grease and moisture over time. When trapped moisture heats up, it can steam inside the ceramic and add stress to the stone.
Product Details
Size & Specifications
- Diameter: 12"
- Thickness: approx. 5/8"
- Shape: half-moon ceramic heat deflector
- Material: high-heat refractory ceramic construction
- Total weight, half-moon: approx. 2.5 lbs
- Finish: natural ceramic; darkens with use as it absorbs smoke
Care & Maintenance
- Do not use soap or detergents.
- Do not clean in a dishwasher.
- Scrape debris and gently burn off residue as needed.
- Avoid high-heat clean burns.
- Expect natural smoke darkening from normal use.
FAQs
What's better: convEGGtor or half-moons?
For Big Green Egg users, half-moons are more versatile. Use one for two-zone grilling or use a pair for full indirect cooking. Half-moons are also easier to handle during setup and cost less to replace if one side breaks.
Will the deflectors darken with use?
Yes. Ceramic deflectors naturally darken as they absorb smoke and cooking residue. This is normal and does not affect performance.
Can I high-heat clean burn the deflectors?
We do not recommend aggressive high-heat clean burns. Using a drip pan helps reduce buildup and the need for heavy cleaning.
Brand Compatibility & Product Engineering
Ceramic Grill Store is an independent manufacturer and retailer of kamado grill accessories. We are not affiliated with or endorsed by Big Green Egg, Inc.
Big Green Egg, EGG, convEGGtor and EGGspander are trademarks of Big Green Egg, Inc. These trademarks are used solely to describe compatibility.
Since 2005, Ceramic Grill Store has engineered premium kamado accessories designed for compatibility with select kamado grills.