i always thought there was more of a reason to be maikel with cholov yisroel than yoshon. yoshon is clearly stated in the torah, right? by korban omer. the issur of cholov akum is just a geder so that we know the milk is kosher. it’s starting out as a derabonon.
and by the way, in the shtetle i’m sure they were getting wheat from years beforehand and the rabonim probably checked that out. nowadays with modern equipment we get wheat much faster than that.
and i once heard that after the iron curtain fell yoshon became an issue here in america. beforehand the supply was backed up so everything was yoshon, but after the cold war american started supplying russia with flour so that ended.
not sure why i even asked but now i’m curious. anyone know the original source of the psak for the heter?