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People who eats lots of processed food have higher possibility to get heart disease and have short life span than the people who eats food from their original form. (6)

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People who eats lots of processed food have higher possibility to get heart disease and have short life span than the people who eats food from their original form. (6)

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- Processed foods are high in sugar, calories, and fat.
- Consuming lots of processed foods links to variety of health problems such as, heart disease, high blood pressure, elevated cholesterol, and cancer.
2 studies published in BMJ:

eating more than four daily servings of ultra-processed foods puts into 62% higher risk of premature death compared to eating little or none of these foods

every 10 percentage-point increase in the share of the diet made up of ultra-processed foods to more than a 10% increased risk of cardiovascular diseases

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1. Processing, F. (2020, December 4). The history of Food Processing: How we got to what we eat. APEC USA. Retrieved May 18, 2022, from https://www.apecusa.com/blog/the-history-of-food-processing-how-we-got-to-what-we-eat/ 

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1. Processing, F. (2020, December 4). The history of Food Processing: How we got to what we eat. APEC USA. Retrieved May 18, 2022, from https://www.apecusa.com/blog/the-history-of-food-processing-how-we-got-to-what-we-eat/ 

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2. Microwave, H. (2022). Facts and history of microwave. History of Microwave - Invention of Microwave Oven. Retrieved May 18, 2022, from http://www.historyofmicrowave.com/ 

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2. Microwave, H. (2022). Facts and history of microwave. History of Microwave - Invention of Microwave Oven. Retrieved May 18, 2022, from http://www.historyofmicrowave.com/ 

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3. Conversation, T. (2017, March 18). How the microwave has changed over 50 Years. MyBroadband. Retrieved May 18, 2022, from https://mybroadband.co.za/news/gadgets/203264-how-the-microwave-has-changed-over-50-years.html 

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3. Conversation, T. (2017, March 18). How the microwave has changed over 50 Years. MyBroadband. Retrieved May 18, 2022, from https://mybroadband.co.za/news/gadgets/203264-how-the-microwave-has-changed-over-50-years.html 

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4. Ochoa, C. (2015, February 26). The microwave and it's effects on society. IT Inventions. Retrieved May 18, 2022, from https://flvsitcourse.wordpress.com/2015/02/19/the-microwave-and-its-effects-on-society/ 

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4. Ochoa, C. (2015, February 26). The microwave and it's effects on society. IT Inventions. Retrieved May 18, 2022, from https://flvsitcourse.wordpress.com/2015/02/19/the-microwave-and-its-effects-on-society/ 

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5. Cavolt, J., Dean, K., White, M., & Salita, H. (2017). Impact on American society. The Microwave. Retrieved May 18, 2022, from http://historyoftech.mcclurken.org/microwave/the-impact/ 

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5. Cavolt, J., Dean, K., White, M., & Salita, H. (2017). Impact on American society. The Microwave. Retrieved May 18, 2022, from http://historyoftech.mcclurken.org/microwave/the-impact/ 

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6. Rapaport, L. (2019, June 5). More evidence links ultra-processed foods to health harms. Reuters. Retrieved May 18, 2022, from https://www.reuters.com/article/us-health-diet-processed-food-idUSKCN1T61YX 

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6. Rapaport, L. (2019, June 5). More evidence links ultra-processed foods to health harms. Reuters. Retrieved May 18, 2022, from https://www.reuters.com/article/us-health-diet-processed-food-idUSKCN1T61YX 

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7. Zhi, W.-J., Wang, L.-F., & Hu, X.-J. (2017, September 21). Recent advances in the effects of microwave radiation on brains - military medical research. BioMed Central. Retrieved May 18, 2022, from https://mmrjournal.biomedcentral.com/articles/10.1186/s40779-017-0139-0 

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7. Zhi, W.-J., Wang, L.-F., & Hu, X.-J. (2017, September 21). Recent advances in the effects of microwave radiation on brains - military medical research. BioMed Central. Retrieved May 18, 2022, from https://mmrjournal.biomedcentral.com/articles/10.1186/s40779-017-0139-0 

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It has given more time for other activities to people. (2)

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It has given more time for other activities to people. (2)

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Stone Age: Food Preservation Methods (1)

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Stone Age: Food Preservation Methods (1)

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- Cooking
- Salting
- Pickling
- Drying
- Smoking
- Fermenting

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19th Century: Pasteurization and Canning (1)

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19th Century: Pasteurization and Canning (1)

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These processes made food more safer and accessible.
- Pasteurization brought significant change especially for preserving juice and milk, as it kills microbes by applying heat without affecting the nutrition and taste of the food.
These processes made significant advancements to the long-term food preservation that we have now. The tin cans also helped soldiers during WWI as they are cheap, long-lasting, and transportable.

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Preservation Methods:
- Spray Drying
- Evaporation
- Freeze Drying
Other Developments that helped to preserve food easily:
- Artificial Sweeteners and colours

- Oven

- Microwave
- Blender
- Factories --> Mass production
Developments:
- Frozen dinners
- Instant Noodle Cups
- Baking Mixes

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21st Century: Rise of Concerns on Nutrition Value of the Food and Human Health (1)

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21st Century: Rise of Concerns on Nutrition Value of the Food and Human Health (1)

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- Preservation Methods --> reduce vitamin and mineral content of food but add fat, sugar, and calories
- Plastic Packaging --> Climate Change
- Food Safety Regulations

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Microwave is used to heat foods. It bombards food that make molecules of water and other substance to collide rapidly which creates heat. It is one of the quickest way to heat foods.

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Inventor: Percy Spencer (Engineer from Howland) (2)

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Inventor: Percy Spencer (Engineer from Howland) (2)

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1945: He was working on a powered radar set where he noticed that the chocolate bar in his pocket was melting.

He exposed popcorns and eggs to a microwave and they both popped --> attached a high-density electromagnetic field generator to an enclosed metal box --> invention of the microwave

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October 8, 1945: Microwave was patented.

- The cost when it was first invented: $5000~$5200

- Prices decreased rapidly in 1970s and microwave became standard part of each household.

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When microwaving food in a plastic container, some chemicals from the plastic can leach into the food.(3)

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When microwaving food in a plastic container, some chemicals from the plastic can leach into the food.(3)

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Microwave became one of the most common object in the kitchen. (4)

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Microwave became one of the most common object in the kitchen. (4)

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Reheat or heat foods easily and quickly (4)

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Reheat or heat foods easily and quickly (4)

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Families could serve individuals within the family at different times or eat different foods. (4)

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Families could serve individuals within the family at different times or eat different foods. (4)

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Reduction of the risk of food illness from eating food that are out for a long time in hot temperatures. (4)

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Reduction of the risk of food illness from eating food that are out for a long time in hot temperatures. (4)

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Reduction of traditional family cooking style (4)

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Reduction of traditional family cooking style (4)

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In the beginning after the microwave was invented, majority of the population were concerned about the radiation that it was giving. In 1970 in US, the federal government set radiation standards for microwaves. This dissipated people's concerns about microwaves. (5)

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In the beginning after the microwave was invented, majority of the population were concerned about the radiation that it was giving. In 1970 in US, the federal government set radiation standards for microwaves. This dissipated people's concerns about microwaves. (5)

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By 1970, about 10% of the US population contained a microwave in their household along with restaurants. (5)

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By 1970, about 10% of the US population contained a microwave in their household along with restaurants. (5)

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Various of the cookware companies began to produce the dishes that were specifically for the use of microwave. (5)

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Various of the cookware companies began to produce the dishes that were specifically for the use of microwave. (5)

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Microwaves changed food preparations and cooking techniques. (5)

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Microwaves changed food preparations and cooking techniques. (5)

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Allowed us to prepare meals without a hassle. (5)

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Allowed us to prepare meals without a hassle. (5)

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- no multiple pots, pans, stovetops, or oven was required.

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Starting from late 1960's and till now, microwaves remains to be popular among consumers. (5)

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Starting from late 1960's and till now, microwaves remains to be popular among consumers. (5)

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Full meals were able to be cooked with just using microwave. (5)

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Full meals were able to be cooked with just using microwave. (5)

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Regardless of skills or talents, anyone could easily prepare meals from the scratch. (5)

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Regardless of skills or talents, anyone could easily prepare meals from the scratch. (5)

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New market emerged: targetting customers who want to use the microwave (5)

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New market emerged: targetting customers who want to use the microwave (5)

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- Food and cookbook which focuses on cooking meals by using only microwave
ex)
- Barbara Kafka published 2 cookbooks on microwave
-  Julie Sahni, a chef and food writer, published in 1990 a cookbook on Indian cuisine that can be prepared only using microwaves

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In the interview with Lisa Salita, who was a teenager and her family brought microwave in 1979, said that even though there are many cookbooks using microwave, most of the food was not good, especially when the meat is cooked, or deserts are baked in the microwave. She said that they had weird consistency.

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There was no other good way to reheat the food. (5)

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There was no other good way to reheat the food. (5)

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For experienced cooks, microwaves allowed free time. (5)

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For experienced cooks, microwaves allowed free time. (5)

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Leftover food provided easy meals --> no need to cook everyday (5)

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Leftover food provided easy meals --> no need to cook everyday (5)

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Before microwave, there were frozen meals. However, they required longer time to heat in the oven --> not saving much time (5)

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Before microwave, there were frozen meals. However, they required longer time to heat in the oven --> not saving much time (5)

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The fast-paced Lifestyle of current society made people be dependent on processed foods. For them, reheating is the only process required to make a meal. (3)

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The fast-paced Lifestyle of current society made people be dependent on processed foods. For them, reheating is the only process required to make a meal. (3)

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“In modern society the food environment is dominated by the ready availability of relatively cheap and accessible ultra-processed foods that are constantly marketed.” (6)

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“In modern society the food environment is dominated by the ready availability of relatively cheap and accessible ultra-processed foods that are constantly marketed.” (6)

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- Mark Lawrence, a public health and nutrition professor at Deakin University in Geelong, Australia and author of an editorial accompanying the studies

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The study of ultra-processed foods surveyed roughly 20,000 people in Spain from ages 20 to 91, about their eating habits every two years from 1999 to 2014. During that period, 335 participants died. (6)

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The study of ultra-processed foods surveyed roughly 20,000 people in Spain from ages 20 to 91, about their eating habits every two years from 1999 to 2014. During that period, 335 participants died. (6)

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Canned foods or processed food still exists.

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Canned foods or processed food still exists.

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People likes convenience and faster lifestyle.

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People likes convenience and faster lifestyle.

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Most of the people still cook foods from the original form.

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Most of the people still cook foods from the original form.

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For convenience and faster life for busy modern people

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For convenience and faster life for busy modern people

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Save lots of times on dishes and cooking

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Save lots of times on dishes and cooking

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There is no need to pre-heat microwave ovens, making them more efficient comparing to traditional electric ovens. The microwave will start cooking as soon as the power is turned on. (8)

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There is no need to pre-heat microwave ovens, making them more efficient comparing to traditional electric ovens. The microwave will start cooking as soon as the power is turned on. (8)

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8. Microwave, H. (2022). Benefits of microwaves - advantages of using microwave ovens. Microwave Benefits - Advantages of Using Microwave Ovens. Retrieved May 24, 2022, from http://www.historyofmicrowave.com/microwave-facts/benefits-of-microwaves/ 

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8. Microwave, H. (2022). Benefits of microwaves - advantages of using microwave ovens. Microwave Benefits - Advantages of Using Microwave Ovens. Retrieved May 24, 2022, from http://www.historyofmicrowave.com/microwave-facts/benefits-of-microwaves/ 

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Microwave does not produce any flames, so even the children can use microwave without any fear. (8)

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Microwave does not produce any flames, so even the children can use microwave without any fear. (8)

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Cooks or anyone who cooks: Microwave ovens have less of a risk of burns when used. (8)

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Cooks or anyone who cooks: Microwave ovens have less of a risk of burns when used. (8)

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The microwave oven uses less energy than a cook stove. (8)

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The microwave oven uses less energy than a cook stove. (8)

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Microwave oven uses much less space in the kitchen. (8)

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Microwave oven uses much less space in the kitchen. (8)

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Processed foods: People who does not have access to fresh food. (poverty, soldiers in war, and etc.)

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Processed foods: People who does not have access to fresh food. (poverty, soldiers in war, and etc.)

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for when there is limited access to fresh food

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for when there is limited access to fresh food

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limited access to plentiful food --> deficient use of time to prepare food from scratch(they would rather work for money) --> more intake of instant foods --> unhealthy life cycle

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Housewives: more time for their personal lives

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Housewives: more time for their personal lives