She is accused of seven counts of contamination of goods and faces up to 10 years in jail if convicted.
A Queensland strawberry farm supervisor seeking revenge over a workplace grievance sparked a nationwide crisis by planting needles in fruit, a court has heard.
Thewoman has had her bail application withdrawn and will reappear in court on November 22.
Suncoast Harvest managing director Di West said her business had to leave more than one million punnets of strawberries on the ground, after the original and a number of copycat cases sent prices crashing.
He said Trinh, a former refugee who arrived in Australia by boat more than two decades ago, had strong family ties to Brisbane.
Ms Trinh worked as a supervisor at the Berry Licious farm, but her lawyer said she did not work picking strawberries or in the packing sheds.
Wacker would not comment on what Trinh's motives may have been, but said investigators had "strong evidence" including DNA. Of those, 15 were believed to be a hoax or a false complaint, he said.
No injuries were reported. The woman was taken to the Brisbane watch house after her arrest.
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A safety warning over the strawberries has been in effect since 12 September.
He suffered severe abdominal pain and was treated at Sunshine Coast University Hospital.
The woman, whose identity has not yet been released by police, faces seven counts of contamination of goods, according to a statement released by the Queensland Police Service.
Queensland's strawberry industry collapsed during the industry's growing season, with thousands of strawberries dumped as supermarkets and shops pulled the fruit from shelves.
The Queensland government announced a $100,000 reward to catch the culprit behind the scandal while Federal Health Minister Greg Hunt ordered the Food Standards Australia New Zealand to investigate the contamination.
Queensland Police said it had conducted a "complex" national investigation "with multiple government, law enforcement and intelligence agencies" in order to zone in on Trinh.
Trinh was an employee at the Berry Licious/Berry Obsession farm facilities in southeast Queensland back in September when the first foreign objects were discovered in strawberry punnets, kicking off a wave of alleged copycats that spread country-wide seeing prices plummet and mounds of strawberries thrown out.