I picked up my juice today, Merlot, and some grapes to blend. When I opened the juice it was very obvious the fermentation had already started. The SG was 1.080. I added 1/4 teaspoon of Potassium Metabisulphte per 6 gallons in hopes of stopping the wild yeast fermentation before I added my yeast. The temperature of the juice was 51 degrees. My plan is to wait 24 hours before I add my yeast. Does this sound like a good plan? About 2 hours I am still getting bubbles in the airlock. This is my first time using juice instead of a kit so I am a little concerned. Thanks for any help.