Does the GrillWizz work on really old caked-on grates?

I got one at the end of last summer specifically for the crud my grates had built up over months of neglect. It took a couple of passes on the worst spots, but it did break it down without me having to put my back into it. The battery lasted long enough for the whole job too.

I was in the same boat last year. My grates had that thick black crust that makes you question your life choices. The Wizz isn’t magic, but it does the job if you’re willing to put in a little work. I found that hitting it on the highest speed and letting the brush do the spinning instead of pressing down hard is what makes the difference. The old stuff comes off in chunks, not like a powder, so you’ll want something to wipe the debris away as you go.

The one thing I’ll say is that I prefer using it on a warm grill, not scorching hot, but warm enough that the gunk has softened a bit. Cold grates with months of buildup are a much slower process. I keep mine in the garage and only bust it out for the deep clean a few times a season. For regular maintenance I still just use a standard wire brush. But for the nasty stuff, yeah, it earns its spot.

I’m probably the wrong person to ask since I only break mine out for a quick once-over after cooking, but I did let mine sit for a few weeks once and it still handled it fine. The old stuff came off in chunks rather than the smooth wipe you get when it’s fresh. Took a bit more patience than I usually have, but I didn’t have to dig in with anything else.

It’ll get through it, but you have to be realistic about what “get through it” means. I bought mine for the same reason, grates that looked like they had a layer of asphalt on them. It didn’t erase everything in one pass like the demos suggest. The motor spins fast enough to chew through the top layer, and once you get down to the metal, it cleans up fine.

The trick is you can’t just glide it over the surface and expect magic. You have to let the brush sit on the bad spots for a few seconds and actually push down a little. I’d say it took me three or four passes on the worst sections before I saw bare metal. My arm didn’t fall off, so that’s a win compared to the old wire brush method.

For a grill that you’ve let sit all winter, it’s worth it. Just don’t expect it to make the grates look brand new in one go. It’ll get them functional, though.

It’ll get the heavy stuff off, but I wouldn’t call it effortless. I had a few spots that needed a second pass with a scraper after using the Wizz, but it did the bulk of the work for me. It made the job a lot less miserable than scrubbing by hand. For the price, I thought it was worth it.

It’s a solid scrubber, but old crust might test your patience.

The spinning brush definitely helps with old buildup, but you’re still going to have to put some elbow grease into it. I found it works better if you let it sit on a spot for a few seconds instead of just gliding over the whole grate. It won’t be a one-and-done miracle, but it’s a lot less work than a regular brush.

I honestly think it depends on how thick that buildup is. Mine had a rough layer from sitting all winter and it did cut through it, but I had to go over some spots more than once. The spinning head takes a lot of the effort out of it compared to a regular brush though. If your grates are really crusty, just know you’ll probably need to spend a little time on them, but it should handle it.

I’ve been wondering the same thing actually. I don’t have one yet either, but from what I’ve seen in videos, it seems like the spinning head would handle the rough spots better than a regular brush. Just depends on how thick that layer is, I guess.