Agriculture and farming
The Inca lived in mountainous terrain, which is not good for farming. To resolve this problem, terraces were cut into steep slopes, known as andenes, in order to plant crops. They also used irrigation. They grew maize, quinoa, squash, tomatoes, peanuts, chili peppers, melons, cotton, and potatoes. Though all of their agriculture was important, their main food source was potatoes, unlike the Maya and the Aztecs, whose main food source was maize. The Inca was the first civilization to plant and harvest potatoes. Quinoa was also a main crop. They would use their seeds to make different foods.
The Inca were the first civilization to use the freeze-dry method of storage. They would leave potatoes outside in the cold, then stomp on them in the morning to push out the water, and allow them to dry in the sun. This process would be repeated 3 or 4 times, until the dried potatoes were ready for storage. At this point they were called chuño.