Plus

If  "Il y a plus de lait dans le frigo" means there is no milk in the fridge, ie. dropping the "ne" how do you say there is more milk in the fridge.
I did think you used encore but that doesn't quite fit.
 

In conversation, you would pronounce the 's' to indicate that there is more milk, and the 's' is silent to say that there isn't any more.