Twelve tested samples of different batches of meatballs showed no traces of horse meat.
It's the latest twist in a Europe-wide crisis over rogue horse meat in beef products.
In one out of nine burgers tested, the Irish authorities found low levels of horse meat.
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Rangeland Foods, near Castleblayney, suspended production after horse meat was found on the premises.
She adds there is an "enormous amount" of horse meat in the food chain.
To the contemporary eye, that may make it sound as if horse meat is healthier than beef.
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Officials in Ireland believe that the horse meat in the products they tested were Polish in provenance.
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And in Portugal, authorities said they found and seized 12, 410 packages of frozen lasagna containing horse meat.
The tests were carried out following the discovery of horse meat in beefburgers produced in County Monaghan.
Minister of Agriculture Daniel Constantin said there was no evidence false horse meat labeling occurred in Romania.
"The company has never ordered horse meat and we never knowingly sold on horse meat, " the representative said.
According to one source, the EU has banned American horse meat from being shipped for consumption in Europe.
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Just imagine the locust-and-horse meat menus European chefs may soon be whipping up.
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Schools, hospitals, chain and fast-food restaurants, have all been serving horse meat in their beef products without realizing it.
Further tests revealed that 760 kilograms of meatballs contained horse meat and were ordered recalled by the food inspectors.
Since then, horse meat has turned up across Europe in frozen supermarket meals and in restaurants, schools and hospitals.
German supermarket chain Real confirmed Wednesday that samples of a frozen beef lasagna had tested positive for horse meat.
It follows the discovery that Findus lasagne contained up to 100% horse meat.
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It is extremely unlikely that anyone who has eaten horse meat containing bute will experience one of these side effects.
Hamon said there was no reason to doubt that the Romanian supplier of the horse meat was acting in good faith.
The horse meat scandal has extended across Europe, with questions raised over slaughterhouses and food suppliers in a number of countries.
Irish police have launched an investigation into the recent discovery of horse meat at a beef processing factory in the Republic.
Meanwhile, it has emerged that the prospect of a police investigation into the horse meat situation has moved a step closer.
Horse meat was discovered in products that are supposed to be 100% beef sold in Sweden, the United Kingdom and France.
Ed Bedington, editor of Meat Trades Journal, says the Findus horse meat case has brought into question the security of supply chains.
In Britain, where it all started, pubs and restaurants are enjoying a massive culinary hit by offering 100% horse meat burgers.
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Before it reached Spanghero, the horse meat also passed through the hands of a Dutch company, Draap Trading, run by Jan Fasen.
Meanwhile, UK Environment Secretary Owen Paterson met with representatives of food businesses to talk about the response to the horse meat scandal.
Food safety officials in the Irish Republic discovered the presence of horse meat in beefburgers during tests carried out late last year.
"It is extremely unlikely that anyone who has eaten horse meat containing bute will experience one of these side effects, " she added.
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