It’s not any ol’ Ziplock—it’s the quart-size Ziploc Freezer Bag, which is about twice as thick as a regular Ziploc bag, is durable, easy to clean, and reusable. It also fit the widest range of bottle ...

Cover every inch of the bottle, using two to four sheets of paper towel if needed ... Pour the champagne into a resealable freezer bag and place the whole bag into an ice bath.