Mechanical harvesters were originally brought in as a strike-breaking ploy, however vineyard owners quickly saw their economic benefits for the profitability of their businesses.
As a result of the introduction of these machine during the last year of Apartheid (1994) thousands of South African workers were left unemployed and homeless.
[1] The existence of the "dop system" over a long period has caused the Western Cape's grape-pickers to suffer the highest rate of Fetal alcohol syndrome (FAS) in the world.
As a consequence of this action, an indeterminate number of insects, reptiles, small mammals and bird's eggs are processed with the grapes as they are turned into wine.
Manual labourers claim that since there is no human perception and decision-making in the mechanical reaping process, these creatures end up in a "destalking screw" where their blood and debris contaminates the wine.