Do not buy mandarins with loose peels; these will spoil soon.
Lemons should feel as light as possible! Light lemons have thinner rinds and fewer seeds.
Citrus fruits should be stored at a moderate room temperature, at which they will keep for about one to two weeks. Since they are cold sensitive, they should not be stored in the refrigerator.
Citrus fruits are rich in vitamin C. Since this vitamin is quite heat sensitive, citrus fruits should only be prepared immediately before consumption; warm dishes should be gently cooked over a low heat and not kept warm.