Bests & Worsts Reviews from Amazon

I do not understand how this product has such high reviews.... I guess if you enjoy chewing on sand, this is the salt/sand mix for you!!! I've included a photo of all the undissolved sand small rocks that sink to the bottom of the pot when I stirred in about a 1/4 cup of this "salt". To be perfectly frank I doubt the integrity of many of these reviews... starting to think many of them were purchased/false.