Down the drain

I feel a primary aspect to be understood while analyzing the role of food and its importance in its current context is to examine how humans consume food, which is after all what its main function is. This consumption pattern has never been constant, and has changed considerably depending on the way food has been cultivated, stored, transported, re-stored and eaten. These systems have been considerably modified by the various discoveries, innovations, improvisations and inventions which continued to evolve since humans settled as an agrarian society.

Cultivation
Some main events in the journey of food have been the discovery of fire and the plough, and a basic understanding of time and seasons, leading to agriculture. This new form of foraging, through cultivation, was helped substantiality by innovations in irrigation techniques (like the Archimedes’s screw and the Noria) and extensive canal building. Later, architectural innovations followed in the form of dams and later more sophisticated aqueducts built in ancient Rome.

However, the pattern of agriculture the world over remained unchanged for thousands of years, although techniques might have differed from civilization to civilization depending on the climate and topography. The most significant innovations that boosted the production capacities of fields to feed the increasing global populations happened in the post industrial revolution late 18th and 19th century, with development of fertilizers like Ammonium Nitrate, pesticides, and other mechanized innovations like the development of tractors, and threshers.

Preservation
Limitations in preservation options reduced the transportability of food which being organic in nature starts putrefying in short time. The organic nature of most food either allowed it to be frozen or dried. Drying substantially altered the nature of the food, while freezing was expensive and exclusive. Food storage changed drastically since the 19th century, with Nicolas François Appert inventing canning in 1809, which contributed significantly to Napolean’s army’s mobility and Europe conquest. Appert himself didn't know how the process of heating canned food helped in its preservation worked, but was later explained by Louis Pasteur. This was followed by breakthroughs by scores of inventors contributing many small advances in cooling machinery leading to the perfection of the refrigerator. This allowed surplus food to be stored in its actual state for many days domestically, and also to be transported overseas on long journeys. Later innovations in packaging design also contributed hugely in optimizing trade.

Human Movement
Various events and inventions in other domains contributed greatly to the food industry, like globalization, colonialism, colonization, international trade and human migration. Globalization, which has its roots in the silk route trades across Asia and Europe, contributed in the spice economy, which thrived for hundreds of years. Colonization, starting with the Spanish conquests of the Americas, resulted in many new food items being introduced to Western countries. After colonization of the Americas, the Spanish distributed the tomatothroughout their colonies in the Caribbean. They also took it to the Philippines, whence it moved to southeast Asia and then the entire Asian continent. The Spanish also brought the potato and tobacco to Europe. Similarly the British Empire introduced tea from China to Sri Lanka, India and Britain and the USA.

Colonialism and the industrial revolution also catalyzed an unprecedented amount of human migration the world over, which gave rose to new consumption requirements and opened up endemic food cultures to new markets.

Alternative power
Shift from traditional energy sources like animal, human, wind and water to steam, coal, fuel and electric also revolutionized the way the food industry expanded over the last century and a half. The industrial revolution triggered the concept of the factory and the mass production of food. It also led to the invention of the railways, automobiles and lastly the aircraft. The last three are of major consequence, as it allowed surplus food to be exchanged between countries through exports and it also allowed fast and networked system of food distribution, thereby preventing widespread famines.

As a result…
However all the above mentioned factors have also contributed in a serious fall out of food wastage which is a result of the ability to acquire surplus food. Since we can acquire much more than we consume, its inevitable that there is a great deal of surplus in the hands of the upper classes in the first world countries who can afford such benefits on the basis of a higher disposable income. Previously we cultivated only as much can be consumed immediately, but the option of preservation has made us uncertain to the consumption amounts, since there is always back up.