Inventory (Details) - USD ($)	Apr. 30, 2021	Jul. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 182,722	$ 182,722
Finished goods	49,393	559,534
Total Inventory	$ 232,115	$ 742,256

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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