1. disadvantages
1.1. time-consuming
1.2. high costs
1.2.1. purchase
1.2.2. maintenance
1.3. limited texture
1.3.1. cannot print fragile sugar structure
2. future
2.1. biotechnology
2.1.1. stem cell culturing
2.1.1.1. artificial food
2.1.1.1.1. e.g.Modern Meadow
2.2. promote sustainability
2.2.1. replace ordinary ingredients with renewable e.g. algae
2.2.1.1. e.g.Netherlands Organization for Applied Scientific Research
2.3. space navigation
2.3.1. provide food supply for astronaut
2.3.1.1. reduce the weight
3. type of food
3.1. snacks
3.2. bakery food
3.3. pizza
4. the market for commercial 3D food printer opened up
5. function
5.1. put the ingredient into a container e.g. chocolate
5.1.1. recipe
5.1.1.1. food is produced e.g. cake
5.1.1.2. to design food e.g. appearance
6. advantages
6.1. allow creativity e.g. change shape of food
6.2. food customization
6.2.1. design according to users' need and preference
6.2.1.1. e.g. the elderly with swallowing difficulties
6.2.1.2. adjust nutrient in food
6.2.1.2.1. more healthy
6.2.1.3. attract people to eat something which they don't like e.g vegetable
6.3. simplify the process
6.3.1. avoid adverse effect on the food
6.4. print complicated sculptures and beautiful pieces
6.4.1. reduce the time of making Complex process
6.5. alleviate the crisis of food shortage
6.5.1. using new ingredient e.g. insect to obtain nutrient
7. History
7.1. First 3D printer invented in 1984
7.1.1. for industrial use
7.2. A project by Cornell University since 2005
7.2.1. the first 3D printer for food