The company added that its salary offer was “very competitive in the market”.
Its West Yorkshire factory is the largest soft drinks factory in Europe, producing more than 50% of the drinks the company sells in the UK.
The factory occupies an area the size of 15 football fields and produces 420,000 cans an hour.
Its products include Coca-Cola, Fanta, Sprite, Monster, and Ruthless.
Unite general secretary Sharon Graham said the company was making “billions of dollars in profits” and could therefore afford “appropriate pay rises”.
“Its profits rose by 37% to a staggering £1.85bn, but bosses are refusing to pay workers decent wage increases that keep pace with rising prices,” Ms Graham said.
A spokeswoman for the company said the average gross salary for an employee in Wakefield was £46,900.
The company said it had also “paid all frontline colleagues £1,000 over the past 12 months to support current cost of living challenges”.
“While we hope a resolution can be found, we are preparing robust contingency measures and are confident there will be no disruption to our trade customers,” the spokesperson said.
The company said it remained “fully committed to maintaining a dialogue with colleagues”, adding that “this offers the prospect of a constructive outcome – unlike industrial action”.
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