中国航天员不吃预制菜了，他们在太空烤鸡翅

Core Points - The article highlights a significant milestone in China's space exploration, marking the first time astronauts have cooked food in space, specifically using a hot air oven to prepare chicken wings [2][3][4] Group 1: Historical Context - The journey of Chinese space cuisine began in 2003 with Yang Liwei consuming packaged food, evolving to hot meals by 2005, and now featuring over 190 dishes in the space station [3][4] - The transition from merely heating pre-cooked meals to actual cooking represents a major advancement in space food technology [2][4] Group 2: Cooking Challenges in Space - Cooking in microgravity presents unique challenges, such as the absence of convection currents that normally help distribute heat evenly on Earth [8][9][12] - The production of oil smoke during cooking poses a significant risk in the closed environment of a space station, where any contaminants can threaten the life support systems [13][14] Group 3: Technological Innovations - The hot air oven developed for the Chinese space station incorporates a fan to create forced air circulation, simulating the convection effect found on Earth, allowing food to be cooked in just 28 minutes [14][17] - The oven also features an integrated smoke extraction system to manage and purify the air, ensuring that harmful particles do not circulate within the space station [14][17] Group 4: Future Prospects - While the successful cooking of chicken wings is a breakthrough, other cooking methods such as frying, steaming, and boiling remain complex challenges due to the unique conditions of microgravity [18][19] - The article suggests that advancements in technology, such as automated cooking systems, may be necessary for astronauts to enjoy a wider variety of freshly prepared meals in the future [19]