Whether M-Budget or Valflora, the contents remain the same --> https://www.srf.ch/news/wirtschaft/gleiche-milch-andere-preise

The packaging size determines the price - quality always the same:


250ml -.55 = 220 centimes per liter https://migipedia.migros.ch/en/204016100000-204016300000
500ml -.80 = 160 centimes per liter https://migipedia.migros.ch/en/204016200000
1000ml 1.25 = 125 centimes per liter https://migipedia.migros.ch/de/valflora-milch-uht
2000ml 1.85 = 92.5 centimes per liter https://migipedia.migros.ch/en/204015800000