Never mix new milk with old. Sour Milk: Milk straight from the cow is slightly alkaline, but as it ages, lactic acid is formed and it becomes what we call ‘sour’. Pasteurizing or scalding the milk slows down this process.
Maasim Gatas: Gatas tuwid mula sa baka ay bahagyang alkaline, ngunit bilang ito ng edad, lactic acid ay nabuo at ito ay nagiging ang tinatawag naming 'maasim'.