You decide to make yourself some homemade pudding. You make the pudding according to the directions and cannot wait to enjoy it when it’s ready. After you put it in the refrigerator, your friend calls and asks you to go to dinner. Of course you accept, forgetting about the pudding entirely. In fact, you don’t remember the pudding until five days later, at which point the pudding has "cracked" and there is water seeping out of it. This phenomena in which the water is seeping out is called:

syneresis

Explanation: syneresis is used to describe a process whereby liquid is being expelled from food. In most cases, it involves foods such as jam, yoghurt, puddings, tomatoes and so on. Syneresis may be observed without opening the food item, such as when it creates an opening where the water oozes from or upon opening the food item such as yoghurt. Syneresis reduces the quality of certain food items, especially those food items which exhibit weak structure and possess low water holding capability. Improving on the water holding capability of food items such as yoghurt will help reduce syneresis.