Today I heard several reports on the news that they think granite counters could be unhealthy in homes because they think granite can harbor germs. I know granite has tiny fissures and cracks in it, and those tiny cracks are part of what gives it character. Well that may, or may not be the case. I am sure the grout in ceramic tile joints can harbor germs. Just about anything can harbor germs including us. So what do we do? We keep everything clean.
I don't believe it is a good idea regardless to put food directly on counter tops. Probably safer to use cutting boards that can be washed and sanitized in the kitchen sink.
Many of the new homes in the College Station area have granite counters at least in the kitchen. In fact granite has almost become a household name even in modestly priced new and retrofitted homes, compared to years ago when only the finest homes had granite.