Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to use leftover dough or batter [title] Use batter within 24 hours. [step] Refrigerate any extra batter or dough, covered with plastic, for up to a day. [substeps] You won't want to use batter that is older than 24 hours.

Ending1: Many recipes use " safe " ingredients and only refrigerate unnecessary dry ingredients. Otherwise, there may be some contamination during the cooking process. Ending2: Most batter contains milk and eggs, which can spoil quickly if not used. Batter will also lose its leavening if its left too long. Ending3: When using new dough or greasing your hands, be very certain that your palms are clean. [title] Work with dough that is not overly chewy or is thick. Ending4: [title] Make the batter by combining the dry ingredients and eggs in a medium-sized bowl. [step] Combine the wet and dry ingredients until smooth and creamy.

Answer format: ending1/ending2/ending3/ending4