suspiciously sweet pheromone-y milk from woolies

Theres something wrong with the woolworths milk. whether organic, or high fat or Ayrshire It periodically has a strong pheromone sweet flavour. It comes and goes, like some of the batches are mixed with some strong smelling stuff, and others taste really good. I was blown away by how good the organic milk used to taste a couple years back, then there was a shortage, and when it came back it wasnt the same. suspicious. what production changes did you guys make? I flip flopped over the years between different milk products and its hit and miss. Can get lucky on one bottle and then the next is pungent,

How do I buy milk which hasn't been contaminated with that strong smelling sweet stuff. Its so strong you can taste it right through coffee, never mind drinking it straight.

What do you guys do to ensure bottle consistency because its wild.