I wondered what LC stood for as I popped the cap off a Nog just now. Checking back on the bottling notes I see that LC means Loose Cap and I really should have tried twisting it to see if it was still loose before opening. Oh well, maybe next time. For what it’s worth the carbonation is just fine, and probably no different from the last one I tried. Maybe I’ll do a back-to-back comparison with the next LC bottle I find. Maybe I’ll forget. Again.