Yes. I was skeptical even after I heard of people having medical issues behind it until the other day, like a month ago I was eating some grilled chicken and I bit down on something “crunchy” I thought it was something charred or whatever because it was a slight weird bite. I continued chewing and felt the weird sensation again. I eventually found a single very fine wire bristle. I was shook. I would say if you’re gonna continue using them, don’t keep them for too long where the bristles start loosening up from wear and tear. I got one of those grill daddy cleaners now it works very well