I'd like to know as well. When my parents remodeled their kitchen they got some kind of simulated granite aggregate made of recycled material that I believe was fully heatproof and held up very well over the years. But did somebody get silicosis in the process?
They might have, you have no way of knowing whether the factory in which they were made used PPE or not. If they were cheap, probably not, if they were expensive, maybe, or maybe the manufacturer was just pocketing more profit.
Most of these aren’t made in a “factory.” Because countertops are heavy and pretty much all custom sized and shaped, they’re being made in small scale local businesses.
