Hello guys
I am new to this forum, but have drinking coffee with soya milk for years. Here is my method for making coffee with soya milk so that it doesn't curdle.
I make my coffee then I let it cool down (5 minutes minimum), or I put a little cold water into it. I then pour a little soya milk into a mug and heat it in the microwave for 35 seconds.
Then I empty the coffee into a third mug, just to let it cool some more then I add the soya milk to that.
It means you use three mugs, but it is a successful method,yay!
I have also found that oat milk tastes far superior and never curdles, but unfortunately it is about twice the price of soya milk.