Among considerations connected to agriculture and agricultural production adapted to the European standards, it is, of course, the modern and fast evaluation of milk and the dairy products. These have to keep into account the need, always actual, to determinate the deviations in the composition of food and also deviations of technological process. We have checked milk and dairy products coming from four major producers from Bacau area, Romania. These producers have their own harvesting centers for milk from farmers, and also they have their own farms for milk production. For a fast and accurate control, some of them acquired milk analyzers of Lactoscope or Milkoscan type.