Freeze dryer is a type of machine commonly used in many industries, which is popular due to its diverse advantages and affordable prices. It can meet the drying needs of various samples, such as biological products, agricultural and sideline products, electrode materials, etc. So what should be paid attention to when using a freeze dryer? The following is the relevant content:

　　1. Before using the freeze-drying machine, it is necessary to pre freeze the sample into ice in advance. This is to sublimate the moisture contained in the sample directly from the solid state to the gaseous state. If the pre freezing is not sufficient, it may not dry thoroughly.

　　2. Before putting the sample into the freeze-drying machine, it is necessary to turn on the refrigeration function of the freeze-drying machine in advance. Generally, it should be turned on 30 minutes in advance to ensure that the temperature inside the freeze-drying machine drops to the minimum temperature for capturing moisture in advance, so as not to allow sublimated moisture to be pumped into the vacuum pump.

　　3. The configured sample should not be too thick. If it is a liquid sample, it is recommended not to exceed one centimeter in thickness. If it is a block, it is best to cut it thinner, so that the drying effect will be better.

　　4. The drying time also needs to be required, usually around 24 hours per drying cycle. Of course, this time is affected by many factors, such as sample thickness, environmental temperature, and so on.

　　The above are the relevant precautions for using a freeze-drying machine. Please take note. If you want to learn more about this, you can visit the official website of Haisiyuan at www.hsy515.cn!

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