Heinz came under fire from MPs yesterday, as they accused it of breaking assurances to staff.
Clare Short (Lab Ladywood), whose constituency includes the factory, said: "It is very worrying.
"We are consistently losing well-paid jobs. Jobs we have had in the country for a long time are moving abroad."
Birmingham MP Sion Simon (Lab Erdington), called the decision "a kick in the teeth".
He said: "There is no excuse for the duplicity, and they can't play games with people's liveli-hood in this way.
"Every person in Birmingham will be very angry with Heinz. The factory is a big physical symbol of a great British institution in the heart and soul of Birmingham.
"You can't make HP Sauce in Holland. That is nonsense. HP Sauce is made in Birmingham."
Khalid Mahmood (Lab Perry Barr) said: "There is no good reason for this. I don't even believe the costs would be cheaper in Holland, so there is no sense to it at all.
"I have demanded to speak to Nigel Dickie, HP's managing director. What they are doing is absolutely disgraceful."
He added: "I'm devastated by this news. It is a landmark in Birmingham.
"The factory is part of the culture of Birmingham."