Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to use citrus peels around the house [title] Swirl lemon peels, ice, and salt in your coffee pot. [step] If you're a coffee drinker, you've dealt with stained coffee pots. Add the peel from a least one lemon, three tablespoons of salt, and two cups of ice to coffee pot.

Ending1: Stir the mixture well before you set it aside. [substeps] Dry lemon peels can burn easily if they're mixed with coffee syrup. Ending2: [title] Soak a cotton ball in orange peels. [step] Peel 1 orange and soak in warm tap water for twenty minutes. Ending3: Let the lemon mixture cool for two minutes before using it. [substeps] Use filtered or distilled water instead of tap water to make lemon juice as a sieve. Ending4: Swirl it for two minutes and watch the stains fade away. Rinse the coffee pot with cool water afterward.

Answer format: ending1/ending2/ending3/ending4