In recent years, due to the many advantages of dry ice cleaning, the wide cleaning field, and the good refrigeration and preservation effect, dry ice machines are very popular among market users. So do you know how to judge the quality of dry ice for sale? The staff of Shuliy machinery will tell you today how to judge the quality of dry ice.
Watch the color of dry ice
首先看干冰的颜色和外观。优质干冰颜色纯白，表面有光泽，冰粒大小均匀，整体丰满光滑，劣质干冰有裂纹。生产块状干冰时，如果工人制作不精细或技术不熟练，切割时规格不掌握，干冰块表面就会显得粗糙，饱满度差，结块。
Smell the dry ice
闻一下待售的干冰。取少量干冰，对着干冰吹热风，立即询问味道如何。食品级干冰没有异味，即使时间长了也不会出现酸味。有异味的产品都是劣质劣质产品，闻起来很臭。如果拿出来做舞台烟雾效果，喷涂后舞台上也会有很难闻的气味，影响舞台效果，甚至可能导致人员中毒。现象，所以不要使用劣质干冰，因为一旦出现问题，后果是非常严重的。
Touch the dry ice for sale
Touch the dry ice, fell its appearance. It should be noted that dry ice cannot be directly touched by hand. As long as it is dry ice, it is all ice, and even the worst dry ice temperature is very cold. The correct way is to wear gloves to take it. High-quality dry ice has a smooth surface and high density. It is very heavy in the hand, not easy to sublime, and has little loss. Bad dry ice is light and not durable, even if store in a dry ice preservation box, it will be worse soon.