Recipe for quinoa chowder in a slow cooker?

[kelownagirl]

My problem with quinoa (the brand in the red box) is that I keep finding tiny pebbles in it that I bite down on while eating. AGGGHHHH!!!!! I wash it but the grain doesn't float so how are you supposed to get any pebbles out of it? After 3 unpleasant surprises I've stopped buying it.

Anyone else had this problem?

I bought mine in builk twice and didn't ever find a pebble. That would certainly stop me from eating tho.