"The food could have been harbouring a number of devastating animal diseases.
"Mongolian livestock has been afflicted by foot-and-mouth disease. This is a disease we definitely don't want in New Zealand. It has the potential to wipe some $16 billion from the New Zealand economy."
The ministry was, however, pleased the woman had declared the food before entering New Zealand.
"Her family knew enough about New Zealand's biosecurity rules to ensure she could alert us that she was carrying potential risk items.
"This shows that New Zealand's biosecurity message is spreading -- even to the outer reaches of Mongolia."