The UK Food Standards Agency (FSA) has received the results of trials conducted on samples taken from the Dalepak facility by North Yorkshire Trading Standards.
According to the Food Safety Authority of Ireland (FSAI), Dalepak is one of the facilities having supplied beef burgers to retailers that contained traces of horse and pork DNA.
North Yorkshire Trading Standards have concentrated on the burger product lines that were included in the survey carried out by FSAI. They have considered seven samples, containing all the meat currently being used in the production of these lines.
There have been no traces of horse or pork DNA detected in any of the samples tested.
FSA stated that investigations continue into the source of the horse and pork DNA detected in some of the Dalepak products produced in 2012.
The move forms part of the agency's four-point action plan announced earlier this month which calls for - continuing the review of the traceability of the food products identified in FSAI's survey; exploring further methodology used for the survey to understand the factors that may have led to the low level cases of cross-contamination; considering whether any legal action is appropriate following the investigation; and work with the Department for Environment, Food and Rural Affairs (Defra) on a UK-wide study of food authenticity in processed meat products.