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No delays in getting grapes to high humidity precooling: the way to avoid dry stems The table grape industry’s problem with dry stems is well-known, says Jan Lievens, of UTE Applied Postharvest Technologies, but it is also wholly avoidable, he believes. He refers to the presentation on South African grapes delivered by Oscar Salgado from SanLucar at the Global Grape Summit of 2020, in which Salgado noted “a strong discrepancy” between fruit in the field compared to its arrival, naming dry stems (rachis) a technical challenge to the South African industry. Jan adds that the appearance of grapes is even more prominent this season, as sales are slower and grapes remain in storage for longer upon arrival.