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Inventory (Tables)
9 Months Ended
Feb. 28, 2022
Inventory Disclosure [Abstract]  
Schedule of Inventory

Inventory consists of the following:

 

   February 28,  May 31,
   2022  2021
Raw materials  $2,054,525   $2,520,654 
Finished goods   2,233,490    921,320 
Total inventory  $4,288,015   $3,441,974