Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to store used coffee grounds [title] Put your grounds on a baking sheet lined with newspaper. [step] Keep the grounds no more than 2-3 inches (5.1-7.6 cm) thick. This will help you dry your grounds faster and will reduce the chance of them developing mold [title] Place the baking sheet outside in the sun.

Ending1: [step] The sun will lighten your grounds but not too much. [title] Refrigerate the entire batch of coffee grounds. Ending2: [step] Use a timer to indicate how long you want to let the mass of grounds dry before you're ready to store them. Set the timer and let it speed up. Ending3: [step] Try to find a spot that receives sunlight for most of the day. Coffee grounds are often used as a deterrent for neighborhood pests, so you don't need to worry about critters getting into your grounds. Ending4: [step] Is generally ideal, but place it outside in the direction that the sun is blowing. If you do not have an umbrella, spray the cover with an olive oil-based primer.

Answer format: ending1/ending2/ending3/ending4