1. Look at the shell. Generally, the color of the torreya shell is light brown or dark brown depending on the variety. If the torreya shell turns black or has white mildew or mildew spots, it means that the torreya has been left for too long, and it may be old or defective goods from last year. It is not recommended. Continue to eat.

2. Look at the pulp. The flesh of the torreya is yellow. If you find that the color of the flesh of the torreya has changed to black, brown, or yellowish brown, it means that the torreya is from last year, has deteriorated, and cannot be eaten anymore.

3. Look at the taste. Torreya has a light fragrance and tastes crispy. If the torreya has been stored for a year, it will not only smell and lose its fragrance, but may also have a weird taste, or have an obvious smell of musty or musty, and taste bitter or sour. Astringent, soft and not tasty.