Q. Why is there foam in my juice?

The foam that occurs is due to the reaction of insoluble fiber with the oxygen and is very normal. Feel free to give it a stir and it should get rid of some of the foam. You can also strain the juice once to remove some of the foam. The amount of foam you get from leafy greens can vary by the season or type of veggie you are getting, so sometimes the foam can be more or less.