We bought coffee with pepper, with a distinct sour taste. I opened the lid and saw that the milk had curdled. Naturally, thinking that it was sour milk, they returned. The girls saw this and said that it was a natural reaction of milk to tobasco. Because there is vinegar in the composition. I think it's worth warning about this, because drinking milk dumplings is very unpleasant. And doubts about the freshness of milk do not leave for the life of me.