I bought a gallon of this and pitched champagne yeast. It fermented for 7-10 days and has now been sitting for 3-4 weeks. It started very cloudy and doesn't seem to have cleared at all. This is my first attempt at cider and I'm assuming it needs to sit for a couple more months or so. Is this correct? Should I expect this stuff to clear at all or just use gelatin? Thanks for the help.