Lancashire County Council will vote on a proposal to limit the supply of Halal meat to school pupils.
Its approval would cost the council £285,000 according to officials opposed to the motion.
It may also affect up to 200 jobs in the region if schools switch meat suppliers.
The decision will also impact on the Jewish community in the Midlands.
Shechita UK has urged Councillors to establish the facts before deciding whether or not to support the proposal.
“The Council has come a long way from their initial motion last year, but the implication of the current proposal is still far from satisfactory based on the evidence presented to them,” said Shimon Cohen, Campaign Director, Shechita UK.
Mr Cohen added, “The Council plays on the perception that mechanical stunning is some kind of therapeutic, calm, relaxing, medicinal process which gently sends the animal into a woozy state of unconsciousness.
“But the reality is mechanical stunning methods are aggressive, invasive actions, designed to speed up the factories’ slaughter processes, with dubious animal welfare claims adopted by campaigns only years later.
“The fact that the Council’s new proposal makes no effort to educate consumers on stunning methods, reveals their true motive behind this ban.”
The debate dates back to the summer when the Council decided to provide only stunned halal meat, except poultry to schools, an action that saw Lancashire Council of Mosques threaten to ask Muslim families to shun school meals.
The proposed ban was debated at Full County Council in November 2017 when the vote was 41 in favour, 24 against and 15 abstentions.
Local Muslim councillors are at odds with the authority’s Tory leader, Geoff Driver, on the issue.