On a side note:
Think twice about taking any food items, apart from bottles of water, off a ship in NZL.
Nowhere else in the world have we actually seen quarantine officers by the ports, checking passengers getting off the ships for food items.
The officers were unfailingly friendly and polite, but thorough.
Especially in Bay of Islands.
(There we actually witnessed more than one passenger being fined for taking fruit off the ship. All of those fined were arguing with the quarantine officers)