A woman having a bite to eat at her parent's house says she nearly threw up when her chips bit back.
The Dunedin woman was munching her way through the crumbs at the bottom of a packet of Eta Ripple-cut spring onion-flavoured potato chips when she bit down on something hard.
Thinking it was a chip, she bit down harder.
"When I couldn't crunch it, I spat it out and saw it was tooth. I thought it was one of my teeth so I looked in the mirror, but it wasn't one of my teeth and I felt a bit queasy."
The 22-year-old woman, who did not want to be identified, said the experience had left her feeling "a bit sick" and had put her off chips for a while.
Her mother said the partial tooth appeared to be from an adult molar.
She said her daughter had come home for a snack after work, and taken the half-eaten bag from the cupboard.
"And it's come back to bite her, in a big way."
The woman's sister said she ate the first half of the bag, and all her teeth were still intact.
A spokesman for manufacturer Griffins said yesterday the woman should contact the company.
The woman said yesterday she was still not sure if she would lodge a complaint.