Mr Maunier, whose Brazilian-inspired steakhouse chain has eight restaurants across the UK, said his firm had passed on about 2% of increased running costs to customers.
"Beef in particular has gone up about 20% in the last 12 months. A big chunk of that has happened in the last six but businesses cannot pass it all on to our guests," he added.
Mr Maunier added that an increase in production costs and an increase in the national minimum wage was also pushing up overall costs, which could be passed onto consumers.
Nick Allen, chief executive of the British Meat Processors Association (BMPA), said competition between supermarkets had previously been keeping the price of beef down, so it was only a matter of time until customers were hit by cost increases.
"Its not surprise. The farm price for beef has been going up and up to the point that its now at record levels," Mr Allen said.
He warned it was a "real struggle" for the industry to keep up with demand for beef, and claimed that "government schemes have not supported production but environmental schemes instead".