Lay the pack flat and put you index fingers at the bottom 1/3rd in from each side. Hold the bottom down with your thumbs and slide your fingers up the pack. Your fingers should be able to slide off the other end, so if you hit a lot of resistance, you still have an unbroken inner pack. Smack the living daylights out of it - I have yet to break the outer seal by smacking it.
Kegged: Belgian Dark Strong, Robust Porter
Next Up: Ryewine
Projects: Freezer Conversion (Done), HERMS (Done), Lager Fermentation Mini-fridge Extension (Done)
Drinking: Great Lakes Edmund Fitzgerald, Fuller's 1845, Lakefront Fixed Gear, beers from SAVOR