The price of cheese is likely to rise by about $2 a kg, butter by $1 or more per kg and milk by 15c a litre following a recent spike in the price of whole-milk powder.
Dairy co-operative Fonterra said international commodity prices had risen 95% since the middle of the year and the prices of milk, cheese and butter on supermarket shelves would go up next month as a result, Radio New Zealand reported.
The high dollar had shielded consumers from any rises, but with increasing international demand manufacturers were now paying more for milk, Fonterra said.