I think this is a good time for me to try explaining or figuring out issues over this matter a little logically.
I had a doubt that when a company make something in bulk or batches generally its a large amount. Like here in this case we can see 1000kg batch sizes. So, on an average like
@MrMichael batch (batch no. 000402) with 25kg per box there will be 40 boxes of bad salts. I was trying to figure out if some of the people who are reporting bad salt mixes if they have the same batch of salt mix or not. I asked very few people who complained in the AF forum here. I found out of 4 people I asked 1 never saw any QC report, 1 dont remember it, waiting for another buddys response, one of them
@jhatfield reported that he has the same batch of salt and he was also facing the same issues with high Mg and Ca.
Interestingly both the boxes are from BRS and bought Feb and March this year. The issue is all these salt boxes come in bulk and then distributed to different sellers. So, if they have 4-5 batches of bad salt it will be total 200 boxes which are out there. In that case it will take quite a bit of time for all of them to come in user circulation. The only thing we as an end user can do is report back the batch number to a place so that someone else already knows if he has a bad salt batch or not.
If AF already corrected their mistake which I believe they did then still it will take time till we don't listen more complain as those bad boxes are already mixed in the huge proportion of other good boxes.