I wash the bowl of the slow cooker, put a paper towel on the bottom, on which we spread the jars with yogurt. And carefully pour the water so that it cannot get into the jar. Close the lid and set the SLOW COOKER program for 8 hours at a temperature of 40 degrees.
At the end of the program, turn off the heating, take out the cans and put them in the refrigerator for at least 4 hours.