There have been no illnesses reported from beef processed at Rancho, according to the Department of Agriculture. LeftCoast said that, while there is no evidence its beef has been compromised, it issued the recall out of an abundance of caution.

LeftCoast cattle were processed at Rancho on "a handful of days in the summer and fall of 2013," the organization said.

"We are sorry for this inconvenience," the note said in part, "and saddened by the waste of millions of pounds of meat, some of which, like ours, was raised with meticulous care and attention to the health and well-being of the animals that produced it."

LeftCoast said it would provide all customers with a full refund. For more information, email