I have a glass coffee cup often used for hot milk. May I use that cup for hot parve almond milk after a meat meal?
Yes, there is no problem in using the cup for a parev drink after a meat meal.
Although one must wait six hours before eating dairy foods, this restriction does not apply to beliyos alone. Something cooked in a dairy pot cannot be eaten with meat, but it can be eaten after meat.
One must, however, be wary of getting leftover pieces of meat on the dairy cup.