I'm glad silva and others are inspired by the video she posted on making oat milk, but that dude makes it too complicated. I simply blend oats raw with a little water and then mix in more water to desired consistency. Straining out means wasted oats - but if you must, no need for a nut bag, just pour the mixture in a bottle and wait - the residue will sink to the bottom and you can pour off the liquid from there. Or you can be hardcore and shake that btch for all hearty goodness of a whole food drink.