Be sure to cook that bottle of beer all the way down to 1 ½ ounces. It's going to taste extremely bitter, but once it mixes with the pizzelle dough something magical happens!
My Pizzelle maker has a setting of 1-5. Five being the longest cook time and one is the shortest. I like my pizzelles crispy and firm, so I cooked then on a setting of four.
Store your pizzelle cookies in an airtight container for two - three weeks. When exposed to the air your pizzelles will absorb moisture and lose the crunch.