This is the recipe I used to can my crushed tomatoes yesterday. It is from a cookbook BFF gave me from the U.S. Dept. of Agriculture. It is a high-quality recipe suited for soups, stews, casseroles and spaghetti. It is also very easy. 22 pounds of tomatoes for 7 quarts. 14 pounds for 9 pints. A bushel of tomatoes is 53 pounds and yields 17 to 20 quarts.
Heat up your canning jars in a pot of water.
Heat up the jar lids and rings in another pot of water.
Mark an X on the bottom of all tomatoes with a knife. Dip in hot water for 30-60 seconds and then in cold water. It makes it easy to peel...or slip the skins off. Cut out any bad spots or bruises and the tops or caps.
Cut up the first few tomatoes a bit and then take your potato masher and mash them while they are heating in another kettle. Keep adding and smashing tomatoes as you peel, and heat. After the tomatoes get hot you can just add the tomatoes as you peel them.
When you heat the tomatoes like this, it stops the tomatoes from releasing an enzyme the makes the juice and water separate. It looks funny but really doesn't hurt the taste. Once they are all peeled, heat an additional 5-10 minutes.
Once the jars and lids are hot, pull a hot jar from the water and put in one Tablespoon of lemon juice for pints and two Tablespoons for quarts. Add salt...1/2 tsp. for pints and a tsp. for quarts. Fill it with the crushed tomatoes, right up to 1/2 inch of top.
It needs the space to create a vacuum to seal the lids. Wipe jar rim so it is clean. Adjust lids and rings and put back in canner.
Do this to all jars, one at a time. It is important to keep the jars hot, because if they are cooler and you put them in the hot water, it can sometimes break the jar and you will lose all that hard work.
When the canner is full, apply canner lid and return to boiling. Once it starts to boil...start timing.
Altitude makes a difference. I live at around 3000 ft. so a pint is 40 minutes. 6000 is 45. Above 6000 is 50. Quarts are 50, 55, and 60 minutes.
That is how simple it is.
I have to say again...how much I love doing this. I would love for all women to have the opportunity to experience the bonding that goes on when a bunch of women get together and can.
I was able to show a long-time friend yesterday how to do it.
One more convert.