Normally I love Kirkland products, so I didn't think twice before purchasing this laundry detergent. The first thing I noticed when I got home was the consistency of the powder, it was much more granular than my regular detergent (Tide) I really liked the scent, nice and fresh. I wash most of my clothes in cold water. The biggest issue I have with this detergent is it doens't dissolve well, in fact in cold water it doesn't dissolve at all. It left a white granular residue which was very noticable on my dark clothes. In an attempt to resolve this I began dissolving the soap in hot water first, before switching the washer to cold. This worked slightly better, but there was still a small amount of residue on the dark clothes (and the light clothes too, we just couldn't see it) I then added an extra rinse which solved the problem.
only mediocre at stain removal
does not dissolve well
does not rinse fully out of clothes unless you do an extra rinse
I ws very disappointed with this laundry detergent. I will not purchase it again and I certainly do not recommend it to anyone else. The one benefit is I was able to return it to costco for a refund.