Cathy2 wrote:HI,
I would try it. In my other life in the USSR, there were no refrigerated milk trucks. Buying fresh milk was always a gamble. I would drink it until it began to turn, then I would make farmer's cheese.
Your milk will likely begin to turn prematurely. If that should occur, I would make ricotta cheese.
But was this milk pasteurized or not? Unpasteurized milk sours. Pasteurized milk generally spoils, as the souring bacteria naturally present in milk is killed off in the pasteurization process. When old recipes ask for "sour milk" in their ingredients, they are not asking for pasteurized milk that has gone off. They are asking for milk that has naturally soured (in a process similar to making yogurt or kefir or whatnot.)
ETA: I guess if you're using pasteurized milk that has spoiled, and are boiling it, you're probably okay, but the difference in flavor between spoiled milk and soured milk is quite pronounced. Also, ricotta is made from whey (leftover from the cheesemaking process), not milk. That recipe linked to is more of a queso fresco/farmer's cheese/paneer type of thing, not ricotta. I know, I know, I'm nitpicking, but someone might find it interesting.