There are four conditions to judge the delicious taste of citrus: the peel can be easily peeled off by hand, there is no seed, the acidity and sweetness are balanced, and the citrus is rich in flavor. However, few oranges can meet the above conditions. Mrs. Kei Igarashi taught you how to choose and preserve oranges: the selection method is 1, and small oranges are sweeter: larger oranges are light in taste, while small oranges with a diameter of 5-5.5cm are rich in flavor. The sweetness is the highest. 2. Flat appearance: Compared with round oranges, flat oranges have better quality. 3. Dark orange is better: the green pedicle is small, the surface is dark orange, and the color is bright and fresh. 4. The orange peel is soft and grows fresh close to the pulp, indicating that the taste is not lost. 5. The orange peel is thin: the peel is hard and the uneven appearance is not sweet. The skin is more delicate and sweet. 6. How many petals are there without peeling: If you look closely at the stem of the green pedicel, you can see the radial white spots, which are the same as the petals of the orange. 7. Pay attention to imported orange peels: You'd better pay special attention when white powder is attached to the surface of oranges, grapefruit and other fruits produced abroad. Save method: 1 Open the lid of the box and put it in the shade: oranges don't need to be kept. 2, lime, stored in the shade can also eliminate sour taste and increase sweetness.