It's the latest twist in a Europe-wide crisis over rogue horse meat in beef products.
This has been accompanied by an equally catastrophic drop of 26.2% in beef prices, according to commission figures.
Compared with this row, other trade niggles such as those over genetically modified maize or hormones in beef are piffling.
Cooked in beef tallow oil, I would frequently purchase two large French fry orders, and consume them with glee.
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Nestle is the latest in a string of major food producers to find traces of horsemeat in beef meals.
BBC: Nestle removes beef pasta meals after finding horsemeat
The agency says figures are not currently available for cases of trace contamination of other species found in beef products.
Police in the Irish Republic were asked to investigate after horsemeat was found in beef products at a third factory.
Last month, horsemeat was discovered in beef burgers, which were on sale in several major supermarket chains in the UK and Ireland.
Mr Gummer told the inquiry that he had been challenged by a newspaper to demonstrate his confidence in beef in this way.
The Czech authority also announced Monday that it found horse meat in beef burgers imported from Poland during random tests of food products.
It said it was taking the action after the traces of horse meat were found in beef bought from a supplier in central Spain.
"I import product from the EU. I have never seen or handled equine product, my company only deals in beef and pork, " he said.
The discovery of pig DNA in beef products is of particular concern to Jews and Muslims, whose dietary laws proscribe the consumption of pig products.
CNN: Meat industry under scrutiny as horsemeat scandal spreads
Also on Monday, the Spanish agriculture ministry announced that traces of horsemeat had been found in beef pasta meals produced by brands owned by Nestle.
The council also said traces of unlisted pork (less than 0.1%) was found in beef burgers and in chopped and shaped beef bought from shops.
The discovery of pig DNA in beef products is of particular concern to Jews and Muslims, whose dietary laws forbid the consumption of pork products.
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Labour shadow environment secretary Mary Creagh said the only reason the extra testing was finally introduced was because of the discovery of horsemeat in beef products.
Earlier on Saturday, the Italian authorities said they had found no traces of horsemeat in beef products seized this week from the Swiss food giant Nestle.
Niggling trade disputes over hormones in beef, genetically modified organisms and American trade sanctions on Cuba and Iran argue for a new way of avoiding future rows.
Red Reef charts, included in her fundraising documents, projects a quite amazing 23-38% increase in beef, pork and poultry consumption with the developing nations leading the way.
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By Sunday 10 February, the Romanian government was examining the possibility that horsemeat found in beef products in Britain and France had come from an abattoir in its jurisdiction.
The FSA has said members of the public would be asked if they found low levels - or "trace contamination" - of horse and other species in beef products acceptable.
The agency did introduce a "positive release system" - meaning the horsemeat was released only when certified drug-free on 11 February, once the crisis over horsemeat in beef products had begun.
Drawn in by easy-to-digest prices and a traditional take on fish and chips, cabbies are known to queue up here for thick slices of fresh cod, fried skin-on in beef fat.
On Wednesday, the FSA said members of the public were to be asked if they find low levels - or "trace contamination" - of horse and other species in beef products acceptable.
London (CNN) -- A frozen food producer caught up in a scandal over horsemeat found in beef products in the United Kingdom, Sweden and France said Saturday it will sue the Romanian producer it blames for the problem.
CNN: Meat industry under scrutiny as horsemeat scandal spreads
The buffalo ribs, on the other hand, performed very well, and were to beef ribs what buffalo steak is to beef steak: leaner and thus lacking some of the juicy flavor and mouth feel that comes from the marbled fat in beef, but making up for it with the rich added slightly gamey flavor of buffalo.
But none of the company's previous buys compares in size to its purchase in 2007 of Swift, the third-biggest processor of beef and pork in America and the biggest processor of beef in Australia.
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The scandal started in Ireland last month, when authorities there found horse meat in some beef burgers sold in large U.K. supermarket chains, but it has now swept across Europe.
Horsemeat has been found in minced beef served at schools in Leicestershire, the county council has confirmed.
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