Step 5: Can the ketchup

Picture of Can the ketchup
Sterilize your jars and lids. Once your ketchup has reduced, pour into the jars and put on the lids. Fill the jars to about 1/2 inch from the top and make sure to wipe the rims clean before you put on the lids.

Process the jars of ketchup in a hot water bath for about 15 minutes (bring to a boil and boil for 15 min). Make sure the water covers your jars by at least 1/2 inch.

Once the jars have sealed (you will hear the lids pop), label your jars and you are done!
rockyman3 years ago
How critical is the head space of the jar.
chiapetrescue (author)  rockyman3 years ago
The headspace in your jar is pretty important because foods will swell when you process them. If you do not leave enough headspace, the contents can be forced under the lid and your jars will not seal properly.

Headspace varies with the type of food you are canning. General guidelines are:

1 inch for low-acid foods such as vegetables and meats.

1/2 inch for high-acid foods such as fruits and tomatoes.

1/4 inch for juices, jams, pickles and relishes (this recipe falls into this category)

Hope this helps.