Wine industry suppliers have been warned to plan ahead amid rising costs and international shortages of a key ingredient in the winemaking process.
The sector has been affected by reduced supplies of diammonium phosphate (DAP), a nitrogen fertiliser commonly used during grape fermentation.
Jason Amos, the chair of Wine Industry Suppliers Australia (Wisa), told Guardian Australia that shipping delays and a reduction in supply of DAP from China had combined to increase costs.
“I’ve seen prices up to
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