BAKED beans they are not.

Biosecurity officials have put the squeeze on a man who tried to bring in 2kg of rooster testicles from Vietnam.

The testicles, which were intended to be eaten, were confiscated and destroyed when the man declared them to officials coming through Auckland International Airport last month.

The man had them in a chilly bin along with fish and other food which he was bringing back for his family, a Ministry for Primary Industries spokesman says.

The testicles - which bear a resemblance to baked beans - were destroyed because of the risk of disease.

According to the Revoltingfood blog, rooster testicles are known as chicken beans in the US.

They have an appearance and texture similar to tofu and "connoisseurs like them barely cooked so there's still some liquid inside so that you feel the liquid squirt into your mouth when you bite down on it".

Other unusual items seized at the border recently include rabbit faeces - from a magician - cattle urine from Malaysia and rat curry. One woman, who listed her occupation as a witch, tried to import some unidentified spices carrying names such as "dragon blood resin".