But 30%?? Hmmm.
Probably still better than Pink Slime.
Food Standards officials in Northern Ireland are now involved in a widening investigation into traces of horse meat found in some supermarket burgers.
It has emerged that some beefburgers on sale in UK and Irish Republic supermarkets contained horsemeat.
It was discovered after tests in the Irish Republic.
The Food Standards Agency is understood to be trying to establish if any of the products ended up on Northern Ireland shelves.
Food safety officials in the Irish Republic made the discovery after tests carried out two months ago.
The burgers had been on sale in Tesco and Iceland in the UK and the Republic of Ireland, where they were also on sale in Dunnes Stores, Lidl and Aldi.
The officials said there was no risk to human health and the burgers had been removed.
Tesco said it was "working... to ensure it does not happen again".
The Food Safety Authority of Ireland (FSAI) said the meat had come from two processing plants in the Irish Republic - Liffey Meats and Silvercrest Foods - and the Dalepak Hambleton plant in Yorkshire.
A total of 27 burger products were analysed, with 10 of them containing traces of horse DNA and 23 containing pig DNA.
Horsemeat accounted for approximately 29% of the meat content in one sample from Tesco, which had two frozen beefburger products sold in both the UK and Ireland contaminated with horse DNA.