Store the noncarbonated Big Batch Cocktails Halloween base in a tightly sealed container at 40°F or below for up to 2 days. For longer storage, freeze only that still base for up to 1 month and leave at least 1 inch of expansion space. Don't freeze the ginger beer or club soda in the mixed punch because thawing destroys the fizz. To serve a refrigerated batch again, keep it cold and add 2 to 3 ounces fresh club soda per glass if the bubbles have faded. Discard the punch if it smells fermented, develops unusual foam before fresh carbonation is added or tastes sharply sour rather than clean and tart.