Every guy is different, and every guy’s cum varies day by day depending on diet.
Pro tip - if you think it’s going to taste bad, (some guys love spicy stuff or foods heavy on onions, garlic, asparagus etc) take him into the back of your throat when he cums, problem solved. He’ll love doing that, and you won’t disrespect him with a sour look on your face.
But you may burp it up lol.