I started a Hard Lemonade from a recipe on this site a couple weeks ago. The fermentation went for a week. Gravity was 1.110 at start and it got to 1.099. I then had to unexpectedly head out of state for the past 20 days or so. I checked the gravity today and its still 1.099. Is it worth trying to pitch yeast again or has it been stalled out to long?