Yes, you can. I am a great advocate of bulk buying and freezing, and I have found that just about everything freezes well. My only disappointments have been sour cream and milk.
By Shel (Guest Post)
02/04/2009
Yes, just be sure to place it in an airtight container and leave room for expansion during the freezing process. I would recommend using a vacuum sealer if you have one and placing it in the recommended bags for your sealer. I would try to use it up within the year if at all possible.
By
02/04/2009
I'd do not know about Ketchup but I have frozen chili sauce (spicy ketchup) I bought a gallon can, put a cup in sandwich size freezer bag and then those bags inside of a large freezer bag. It never freezes solid; I had over two years worth of chili sauce.