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Don't Cook That

Sweet Corn (canned)

Corn water-bathed in jars, in a method the book says is so satisfactory no other will be given.

From
Canning, Preserving and Jelly Making
Published
1915
Yikes Scale
Yikes

Exactly as printed, 1915

Golden Bantam sweet corn cannot be excelled for canning purposes. The following recipe for canning corn is so satisfactory that no other will be given for this article in these pages.

Have the corn fresh-picked and husked. Use only the pulp, the hull being more difficult to sterilize. To prepare, with a sharp knife score the kernels in each lengthwise row on the ear, then with the back of the knife press out the pulp, leaving the hulls on the cobs. As the pulp expands greatly in cooking, especially at first, the jars should be filled to only two thirds their height. Set the pulp to cook in three jars for each two to be filled. Set the jars in the cooker or canner as usual, the covers beside them; after cooking fifteen or twenty minutes, stir down the corn in each jar and repeat this stirring several times whenever you fear the pulp will rise over the top of the jar. When the corn pulp no longer puffs in cooking, fill two jars from the third and let cook about half an hour, then wipe the top of each jar, adjust the rubber rings and covers, and let cook again about half an hour, then tighten the covers.

Hot water may be used to fill the jars if the quantity of corn pulp is short.


Canning, Preserving and Jelly Making, 1915. Public domain; transcription unaltered.

So what happens if I make it?

Corn sits at a pH around 6.0 to 6.8, and nothing in this recipe brings the jars above the temperature of boiling water. Botulinum spores need roughly 240°F, and they are not reached.

The confidence of the sentence is the problem. A reader told that no better method exists has no reason to look for one.

Notes from the 21st century

  • The 1910 “canner” was not a pressure canner. Household canners of this period were open water baths or steam boxes at atmospheric pressure. The name is misleading to a modern reader.
  • Corn is the classic vehicle. Home-canned corn appears repeatedly in the historical botulism literature. It is the reason the modern guidance is so emphatic.
  • Freeze it instead. Blanched and frozen corn keeps beautifully and needs no equipment beyond a freezer.

Also in this book

  • Pickling Olives — Half a pound of concentrated lye per three gallons, then plain weak brine in fruit jars.

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