1, put it in a fresh-keeping bag and keep it out of the air for a long time. But it must not be kept fresh in the refrigerator, which will accelerate decay.

2. Find some baking soda, don't use too much, dissolve it in water, wash the oranges one by one with soda water, let the water outside the oranges dry naturally, and let the soda water form a protective film outside the oranges. Then, put them in plastic bags. Finally, seal the bag, be sure to seal it. Don't let air into the bag. In this way, the shelf life of oranges will be extended for a long time, and there will be no problem for three months.