来源：央视财经 防弹衣 吴奇解释，其实"炒冷饭"的答案不在灶台上，而在米饭的微观结构里。他表示，刚煮好的米饭，淀粉分 子处于松散状态，冷却后，淀粉链之间会形成更多氢键，就像一张渔网被加密了，网格变小、结构更紧 实，米粒因此变得"坚挺"。正因如此，冷饭下锅后不易糊化、粘连，更容易炒出粒粒分明、干香可口的 效果。 撒贝宁幽默地总结："你以为你炒的是饭？其实你调控的是分子链之间的距离！"而这，仅仅是厨房科学 的冰山一角。为什么拉面越拉越筋道？为什么和面要反复揉搓？这些日常操作，其实都涉及高分子链的 延展、纠缠与重组，属于大分子物理学的研究范畴。甚至看似毫不相关的古籍修复，也离不开对纸张纤 维等大分子材料各项性能的理解。 保鲜膜和 相信大家一定听过不少厨房里的"小妙招"：蛋炒饭要用冷米饭、饺子馅要朝一个方向搅拌、爽滑的肠粉 则非陈米不可……这些代代相传的经验，看似只是生活智慧，但实际上暗藏着食物中淀粉、蛋白质这些 大分子变化的科学规律。 本期《开讲啦》邀请到一位潜入厨房的"分子侦探"——中国科学院院士、大分子物理学家吴奇，他不执 锅铲，却以大分子物理学的"编织术"为钥匙，带领观众揭开一道道家常美味背后的科学密码，开启 ...

Core Points - Nanjing University Logistics Service Group has announced the trial operation of diverse dishes at the Ninth Canteen, which has garnered attention from students, alumni, and the public [1] - The canteen aims to enhance service and diversify food offerings to meet various needs, with positive feedback from the university community [1][2] - The introduction of high-end seafood, specifically Kamchatka crab priced at 999 yuan, sparked discussions about the appropriateness of such offerings in a university canteen [3] Summary by Sections Service Upgrade and Menu Diversification - The Ninth Canteen is currently in a service upgrade and menu testing phase to explore a more diverse dining service model [1] - The canteen has adjusted its menu to ensure a richer and more affordable selection that aligns with the university's basic positioning [1] Pricing and Value Initiatives - The university has implemented various initiatives to ensure affordable dining options, including a 1-cent breakfast, student meal sets priced at 7/8/10 yuan, and low-cost vegetarian dishes [1] - The canteen has received recognition for its value offerings and themed food events, such as "Late Night Canteen" and "You Order, I Cook" [1] Future Plans - The university plans to further enrich the variety of dishes and improve food quality to provide better value and service to students [2] - There is an emphasis on enhancing the educational role of the canteen as part of a comprehensive educational system [2]

Core Viewpoint - 鼎泰丰, once a representative of "exquisite Chinese cuisine," has exited the Chinese market while experiencing a resurgence overseas, particularly in the United States [3][6]. Company History and Development - Founded by Yang Bingyi in Taiwan, 鼎泰丰 initially sold peanut oil before pivoting to a restaurant model in the 1970s, offering traditional Chinese dishes like soup dumplings and noodles [4][5]. - The brand gained international recognition, particularly after opening its first store in Japan in 1995, leading to a global expansion through franchising [5][6]. Market Performance in China - Despite initial success in mainland China, 鼎泰丰 has faced declining popularity, closing 14 stores in cities like Beijing and Tianjin due to significant losses, totaling 44.8 million yuan in the first seven months of the previous year [6][8]. - The brand's pricing strategy has not adapted to changing consumer expectations, with a high average spend of 148 yuan per person, which is perceived as uncompetitive compared to local dining options [8][9]. Competitive Landscape - The rise of local dining brands has intensified competition, with many new entrants appealing to younger consumers through innovative concepts and aesthetics, diminishing 鼎泰丰's unique market position [7][8]. - The brand's service model, once seen as cutting-edge, is now viewed as outdated, especially with the introduction of service fees that some customers consider excessive [7][8]. Performance in the United States - 鼎泰丰 has seen significant growth in the U.S., with sales exceeding $400 million last year, marking a nearly 20% increase [9]. - The brand has strategically opened new locations, including a flagship store in Manhattan, and plans to expand further in the U.S. market [9][10]. Consumer Engagement and Marketing - In the U.S., 鼎泰丰 has adapted its menu to local tastes, introducing chicken dumplings and vegan options, which have resonated well with American consumers [12]. - The brand has leveraged social media platforms like TikTok to attract younger audiences, with viral marketing contributing to increased foot traffic in stores [12]. Dining Experience and Market Trends - 鼎泰丰's dining experience in the U.S. emphasizes transparency and engagement, with open kitchens allowing customers to observe food preparation, aligning with current trends in the restaurant industry [12]. - The shift in consumer behavior towards high-quality dining experiences has benefited 鼎泰丰, as Asian cuisine gains popularity in the U.S. market [12].

Group 1 - Ding Tai Fung announced the closure of its official WeChat mall, effective November 30, 2025, urging customers to redeem their points before the deadline [1][4] - The brand has closed over ten stores in mainland China recently, with only 14 locations remaining in cities like Shanghai, Guangzhou, and Shenzhen [1][15] - Ding Tai Fung is experiencing a significant contraction in its domestic operations while simultaneously expanding internationally, with new openings planned in North America [17][18] Group 2 - The mid-to-high-end dining industry in China is undergoing a "winter" phase, with many restaurants shifting from higher price points to more affordable options [19][22] - Data indicates a 50% reduction in the number of high-end restaurants in mainland China by 2025 compared to 2022, with significant declines in major cities [19][21] - High-end dining brands are adapting by offering lower-priced menus and focusing on customer experience to meet changing consumer demands [22][23] Group 3 - Ding Tai Fung's historical significance includes being recognized as one of the "World's Top Ten Gourmet Restaurants" by The New York Times in 1993, and it has been awarded Michelin stars [12][13] - The brand's average price point is relatively high, and it has a loyal customer base that appreciates its quality and consistency [12][15] - The company has previously engaged in digital transformation efforts to enhance customer loyalty and increase repurchase rates [12][15]