i was there a year ago on a non CY day. The tour guide said the rabbis only come certain days. Seems the milk on those days is trucked to the CY bottling facility across the road. On regular days it’s trucked to the krieder facility
Not true. It's the only CY farm that never kashers as it's always CY. Even the Chassidish farms such as UDF / Golden Flow give the mashgichim off days and kasher after but Kreiders a mashgiach living on site 24/7/365 who only leaves when another mashgiach comes to relieve him. Call the hechsher + farm and ask.
It may be possible that The Kreiders label is stuck on to milk from other farms so be careful YMMV if its CY, again call the hechsher.