Wow, that’s a lot of yogurt. How do you use it? Are you freezing what you don’t use?
I eat a fair amount of yogurt and my main criterion for whether to try a certain brand is whether it contains pectin, which to me gives it an unnaturally smooth texture. I can’t remeber if Chobani has pectin or not, but regardless I will probably avoid it now.
Make your own yogurt. Its easy, and you control what goes into it.