Podcast
Questions and Answers
What is the primary purpose of canning?
What is the primary purpose of canning?
How long can a freeze-dried canned product like dried lentils last in an edible state?
How long can a freeze-dried canned product like dried lentils last in an edible state?
What was the condition of the 109-year-old canned food found in the wreck of the Bertrand?
What was the condition of the 109-year-old canned food found in the wreck of the Bertrand?
Why did the French government offer a cash award before the Napoleonic Wars?
Why did the French government offer a cash award before the Napoleonic Wars?
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What organization tested the samples of canned food from the wreck of the Bertrand?
What organization tested the samples of canned food from the wreck of the Bertrand?
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Study Notes
Canning and Food Preservation
- The primary purpose of canning is to preserve food for a long period.
Shelf Life of Canned Products
- Freeze-dried canned products like dried lentils can last in an edible state for an indefinite period.
Historical Example of Canned Food Preservation
- Canned food found in the wreck of the Bertrand, which sank in 1865, was still edible 109 years later.
Early Development of Canning
- The French government offered a cash award before the Napoleonic Wars to encourage the development of a method to preserve food for the military.
Scientific Testing of Canned Food
- The Missouri Botanical Garden tested the samples of canned food from the wreck of the Bertrand to determine their edibility.
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Description
Test your knowledge of food preservation with this canning quiz. Learn about the different methods and techniques used to prolong the shelf life of food, from Mason jars to steel and tin cans. See how much you know about the science and history of canning!
