Greggs Chief Executive Ken McMeikan has urged Treasury ministers to rethink the planned VAT rise their products.
In his budget, Chancellor George Osborne proposed introducing a 20% tax rate on hot takeaway foods.
Mr McMeikan says Greggs' pasties, pies and sausage rolls should not be subject to VAT because the customer cannot be guaranteed a hot product.
The Prime Minister David Cameron revealed that he like pasties when questioned at a press conference for the London Olympics.
His comments followed an earlier statement from Chancellor George Osborne, saying that he couldn't remember the last time he bought a pasty from Greggs.
The row is continuing over George Osborne's plan to bring in a so-called "pasty tax".
The Chancellor wants to impose VAT on products like the hot pasties, pies and sausage rolls.
Last night, Mr Osborne was asked by Bassetlaw Labour MP John Mann when he'd last eaten one
The Chancellor George Osborne has admitted he can't remember the last time he ate a Greggs pasty. The comment came in a Commons select committee when he was questioned by Bassetlaw Labour MP John Mann. Mr Osborne wants to introduce VAT on hot takeaway food such as pasties and sausage rolls.