2 to 3 days in spring and summer, and half a day in summer and autumn 1 day. How long can braised kelp with ribs be preserved at room temperature? The lack of nutrition depends on the season and temperature. Pork sparerib soup will be stored at room temperature for 2 to 3 days in spring and winter, and it will not go bad after being put for one night. If stewed ribs can only be kept for half a day to a day in summer and autumn, they will go bad after a long time. Rib, usually referred to as ribs in China, is a processing ingredient in cooking dishes. Pork accounts for a large proportion of meat in China, which is also caused by the diet structure of China people. Braised pork ribs is a China home-cooked dish.