The best way is a cave, the cold storage is not easy to adjust, and the quality has a lot to do with temperature and humidity. If you have so many, you'll have to find a bigger cave to store them separately. Good caves can be stored for 3 to 5 years, which is very good. There are many such caves in the countryside, and the effect is very good! It is suggested to use caves, but you really can't use gas to modulate cold!

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