[cauterized]

I've had a similar experience. I think the organics companies just clean their equipment/tanks better or something. Regular milk with an expiration date 3 weeks in the future often turns sour within 3 days of opening, despite refrigeration. Whereas organic milk with the same expiration date, from the same shelf in the same store, will last a week and a half. And there's really nothing inherent about organic milk that should make it last longer.

[CamelCaseName]

Regular milk with an expiration date 3 weeks in the future often turns sour within 3 days of opening, despite refrigeration.

Wait, what? Are you not refrigerating your milk? This is unusual.

[cauterized]

I always refrigerate milk, just wanted to be clear about it to explain that it wasn't going sour because I was doing something dumb like leaving it open on the counter.

[Neliquat]

I find the reverse. Organic smells sour after 2-4 days, but my standard delivered milk lasts at least a week. Both are local and minimally processed, and come in glass bottles.