Is Coca Cola Kosher?-
I've noticed religious Jews buying Coke at my local supermarket, but I don’t understand how it can be kosher if the formula is a big secret. Also, it doesn't say "kosher" anywhere on the label.
When I was growing up, most kosher products had the symbol O-U. But now there seems to be everything – Texas-K, California-K, Minnesota-K. How do I know what kosher supervision is considered reliable?