SOMEWHERE on the internet (I hate it when I don't mark things) there are instructions for this. What I do is cut my fabric to 9X12, several pieces, put them in a large freezer bag, pour in the BJS, squeeze out the air (very carefully now) and let set for the length of time required. When done, cut one corner of the bag at the bottom, very small, keeping it so the contents don't drip out til you are ready. Then you hold it over the BJS jar and let it run back in, again being very careful to get most of the liquid out without putting in any wrinkles (they stay). Then I let dry in my shower. While looking for these instructions I ran across a site, that of course I didn't mark, that said you shouldn't let the BJS run back into the bottle, you should use another container, wasn't told that before so have been letting it go back into the BJS bottle, didn't seem to affect it.