The present invention provides a porous baking food and a preservation processing method for the same. The porous baking food includes a bag and the bag is received with a main body and filled with preservation gas composed of nitrogen and carbon dioxide. During the packaging process, the preservation processing method for porous baking food is injecting nitrogen and carbon dioxide by using a gas input device and, using a gas regulation monitoring device to monitor the volume percentages of nitrogen and carbon dioxide of the preservation gas. Carbon dioxide in the preservation gas and water content contained in the main body will perform chemical reaction to generate carbonic acid. Because carbonic acid may lower pH value and the chemical reaction requires water, the present invention may reduce water content in the bag to achieve the purpose of increasing days for preservation without placing deoxidizer, so that eat the deoxidizer by mistake would not happen for enhancing eating safety.本發明係一種多孔狀烘焙食品及多孔狀烘焙食品保鮮處理方法,該多孔烘焙食品包含一袋子,該袋子內容置一本體並填充由氮氣與二氧化碳組成的保鮮氣體,且該多孔狀烘培食品保鮮處理方法係於包裝過程中,以一氣體輸入裝置注入氮氣與二氧化碳,再以一氣調監控移監控保鮮氣體的氮氣體積百分比與二氧化碳體積百分比,由該保鮮氣體的二氧化碳與該本體所含的水分進行化學作用而產生碳酸,藉由碳酸可降低pH值,加上化學作用需要水分,可減少袋子內的水分,以達到提高保鮮天數的目的,且不需要放置脫氧件,所以不會誤食脫氧件,故食用安全性佳。10‧‧‧袋子11‧‧‧容置空間20‧‧‧本體21‧‧‧吐司部22‧‧‧餡料部30‧‧‧保鮮氣體
