The two factors behind the curdling of soy milk are acidity and temperature. Black coffee is more acidic than soy milk and can act like a coagulant, making a kind of loose tofu in your coffee cup.
Besides, how do you tell if soy milk is bad?
Smell Your Soy Milk
If soy milk looks different from its usual off-white color and runny texture, that may be a sign of expiration. One of the easiest ways to tell if your soy milk is expired is by smelling it. Sour milk of any kind — dairy and nondairy — will have a rancid odor due to the growth of mold and bacteria.
Considering this, what happens if you drink spoiled soy milk?
Although the side effects are not serious, drinking expired soy milk can lead to symptoms of food poisoning such as upset stomach, diarrhea, nausea and vomiting.
How is soy milk coagulated?
Soy milk will coagulate if mixed with a coagulating agent, such as nigari or gypsum. This is typically done to make homemade and delicious tofu. In order to coagulate soy milk, you will need to create a coagulant mixture, add the coagulant to hot soy milk and then stir until the milk begins to coagulate.
Can soy milk curdle?
Cold soy milk curdles at a rather mild coffee pH of 4.6. Meanwhile dairy milk is much hardier. You need a very acidic pH 4.1 to curdle it. In conclusion, soy milk is much more sensitive to acidity than dairy.
How long can you keep opened soy milk?
Does soy milk need to be refrigerated after opening?
Does Soy Milk Need to Be Refrigerated? Soy milk, once opened, requires refrigeration and should be consumed within five days. Prior to being opened, however, soy milk actually doesn’t require chilling, and has an unrefrigerated shelf life of at least one year.