1. According to the query of Kyushu Catering Network, if pickled vegetable soup is left for too long, it will lead to the growth of bacteria and microorganisms inside, leading to deterioration, etc., making pickled vegetable soup sticky and can no longer be eaten.

2. Using the same kimchi water for many times to make kimchi will lead to excessive internal decomposition and secretion, and the accumulation of substances will make the water sticky.