Here’s the situation: In a serve-yourself setting, I poured some milk from a carafe into some coffee. It made those familiar curdled-milk doilies. I smelled the milk. It smelled fine. I poured a little into a cup and tasted it. It tasted fine, except for the odd texture (i.e., curdled). I asked a passing wait-person, who expressed bewilderment and kept moving.
Is it possible for milk to be curdled but not sour? If so, what causes that condition?
Thanks!