We love Lifeway Kefir. Costco sells a 12-8 fl. oz. package for $9.99 or $0.104 per ounce.
The question is whether a 12-8 fluid ounce package of kefir would cost less per ounce than a single 32 fluid ounce bottle of kefir.
If a retailer was selling a single 8 fl. oz. bottle of kefir, I’m pretty sure that the 32 fl. oz. bottle of kefir would be cheaper per ounce. Likewise, a single 96 fl. oz. bottle of kefir would probably be cheaper than a single 32 fl. oz. bottle of kefir. However, would 12 8 fl. oz bottles of kefir be cheaper per ounce than a single 32 fl. oz bottle?
I picked up a 32 fl. oz. bottle of Lifeway kefir from Milk Pail in Mountain View, CA for $3.99. The per ounce cost is $0.125.
So, a lot of small bottles purchased together costs less than one larger bottle, despite all the extra packaging.