Lactulose crystalline powder manufacturers tell you that no matter how finely ground the crystals are, their geometry remains the same, but we can only see them under a microscope, and the geometry of powder particles is different, just like flour and salt. difference is the same.

The difference between powder and crystal in chemistry is as follows:
Lactulose crystalline powder manufacturers tell you that powder powder usually refers to an aggregate of discrete particles less than 1mm in size.
The lactulose crystalline powder manufacturer tells you that in chemistry, after the hot saturated solution is cooled, the solute is precipitated in the form of crystals, a process called crystallization.
The manufacturer of lactulose crystalline powder tells you that the crystal material can only be judged as a crystal when the crystal particles can be seen by the naked eye. In fact, many substances with very fine particles that cannot be distinguished by the naked eye are also crystalline. If you want to determine whether it is a crystal, you can do a powder diffraction. If there are obvious diffraction peaks, it must be that if it is a large bag, it is amorphous. The manufacturer of lactulose crystalline powder tells you that the size of the crystal particles is related to many conditions after the shortcut. Such as temperature, solvent ratio, precipitation rate relative to supersaturation, etc. You are repeating the literature, preferably following the steps described in the literature as much as possible.