It involved the cultivation of milk yeast cultures, which was sold to the originator, and the recultivating of the next batch.
The originator had to pay back all the money to claimants, likewise all who benefited had to return their earnings.
The scheme was initiated by Adriaan Nieuwoudt after his grandmother showed him a milk culture she used as a skin product.
In the end, after it was declared illegal through retrospective legislation, Mr. Nieuwoudt said that he could have repaid every cent to the participants but does not confirm that he actually did.
[1] According to subsequent evidence presented at trial, the Kubus business was exported to the United States in 1984.