I am making my first batch of cider using fresh pressed cider (two batches made with commercially made juice). I used 5 gal of juice, 5 crushed campden tabs, brown sugar and a Cote de Blancs yeast, temp at about 70. In my first two batches, the gas lock bubbled in about 2 days, this one did nothing for about 10 days, now I have foam in the carboy and some bubbling in the gas lock. Is this normal?