The method of preserving food, Canning. The 98 Billion Dollar canned food industry contains processed & sealed food in jars and steel cans.
It is astounding to know that in such cans commodities like dried lentils can last for 30 years in an edible state. Other notable canned foods include baked beans, Asparagus, Peaches, Pears, Potatoes, and other vegetables like carrots, peas, maize & Spinach.
As far as history is concerned it was first developed in the 18th century basically for soldiers & sailors at war. The canned goods sell well at the time of recession the USA saw an 11.5% rise in these sales in the 2009 recession.
Being economic they cost less than fresh food and the world's top canned food consumer countries are Sweden, UK, Portugal, France, Belgium, the USA, New Zealand, Norway, and Czech Republic & Australia.
In the recent scenario of COVID-19, the pandemic boosted the global canned-food sector from a stagnant sale of the last few years. Food to fight the pandemic was the one with the long shelf life, for example during that period in France the sales increased by 50% while compared to pre-pandemic rates the sale of organic canned vegetables rose by 79%.
On the flip side as far as health related issues are concerned fresh food have always been given priority over canned ones. Nevertheless, its global market is expected to grow at the rate of 4% for the period of 2020-2024 while the global legume canned food market is expected to grow by 1% during the same period.