Yes indeed you can. Doesn't make the milk go away though. Could this be a glitch?
Strange. The milk goes away when I feed the folk. Are you sure that the folk are in a hut?
Maybe that's why. I'll try and see if it works.
SPOILER!!!
It didn't work. :( I don't know what to do! The folk simply cries and doesn't accept the milk!
If they are crying then either you did not put them in a hut correctly or you found a bug.
No worries, it simply happened to be that it didn't ask for food.