Lemon bars can be stored in the freezer for up to one month. Prepare frozen lemon bars for consumption by removing them from the freezer and allowing them to reach room temperature before serving.
Lemon bars can be successfully frozen after baking, according to David Lebovitz, a professional chef and baker. Once removed from the oven, allow them to cool completely, then cut them into squares or rectangles. The lemon bars can then be served. If consuming within three days, they can be kept in an airtight container at room temperature. The freezer option allows the dessert to be preserved for a later date.