We have tested cooking at up to 650º F – as measured at grill level or a few inches above - without any damage to the Woolly Bully. The part of the Woolly Bully most vulnerable to heat is the exterior fabric, a solution-dyed polyester with a melt point just over 470º F. Fortunately, the outer layer is separated from the lid throughout the assembly by ½” of insulation, meaning it will usually stay several hundred degrees cooler than the cooking temperatures. After extremely high heat cooks, you may notice an aroma from the plastic off-gassing, which is likely the small section of the outer cover underneath the thermometer where the insulation is compressed. The Woolly Bully will remain structurally intact, and the aroma will not hurt anything, and will dissipate after a day or two.

Fabrics that can withstand temperatures >500ºF tend to be 1) not great with rain and sun, 2) prohibitively expensive, and 3) prohibitively ugly. Solution-dyed polyester is the best combination we could find of the three factors, and, when protected by the insulation, gives the Woolly Bully the best overall performance and longevity.

In a couple ways: First, repeated cycles of heating, cooling, getting wet, and drying, will lead to a small amount of shrinkage of the Woolly Bully’s outer polyester layer. This is nothing to worry about, and in fact we oversized the outer layer just a bit so that after this shrinkage it will fit perfectly. Second, UV radiation will cause the Kevlar/nomex trim and stitching to lighten a shade or two. This is merely a fading of the black pigment in those materials, and does not impact strength or stability. Lastly, very high temperatures can cause the silicone coating on the inner fiberglass layer to degrade. While the fiberglass itself remains undamaged, the overheated silicone can lead to a burnt-rubber smell. This will dissipate after a couple days.

Yes! Up to an air temperature of about 650º. Maaaaaybe 700º. Higher than that and the polyester outer fabric will start to shrink 1-5%, and possibly melt. (For what it’s worth, whenever we get the grill this hot we see other problems... such as melting the black standoffs on the lid bail, melting the black handle on the lid damper, cracking pizza stones, and crazing on the lid enamel.)

But, within its temperature range, the Woolly Bully is a GREAT way to get the air temperature 50-100º higher than the temperature of your pizza stone or other cooking surface, which many pizza chefs swear produces the best results.

Not right now. The vent opening and the thermometer cutout would likely be in the wrong places, as Weber has a habit of changing the layout of their lid every couple decades. But we are looking to make the Woolly Bully for other grills, prioritized by popularity. Please contact us at operations@woollybully.com, ideally with a photo of your lid, and we can let you know as we establish a timeline.

No, but we’d love to make them! Please contact us at operations@woollybully.com and let us know what size you have.

Hook: Yes. The Woolly Bully adds about 3.5lbs to a 6lb lid. So it weighs a little more, but not an issue if the grill has grates and charcoal in it. Photo:

• Lid with Woolly Bully hanging by hook

Bail: It's a tight fit, but also yes. Photos:

• Open lid in bail
• Lid seated in bail
• Lid in bail from rear