Hebrew National - the hot dogs made and distributed as kosher by ConAgra Foods is coming under attack.  Critics say that the sausages are not kosher, and that the company has misrepresented the products for a profit.

Eleven individual consumers filed their complaint in May in Minnesota state court. ConAgra moved the case this month to a federal court in St. Paul. The lawsuit was reported last week by American Jewish World, a publication based in Minnesota.

According to the lawsuit, even company employees were aware that the meat product wasn't being processed according to kosher standards.

"This is an invisible fraud," Hart Robinovitch, a lawyer for the plaintiffs, said in a phone interview. "How does a consumer who thinks he is buying kosher meat really know he is buying kosher meat? It's a very, very difficult thing for a consumer to detect, unless someone investigates."

Company officials deny wrong-doing and look forward to their day in court.