2. Some shops outside will add edible alkali when cooking porridge to increase the consistency of porridge. It can be said that a small amount is harmless, and more will definitely have an impact on health. If the porridge is thick, the proportion of glutinous rice can be increased, for example, the proportion of glutinous rice accounts for more than 30% of the total. In addition, after cooking, open the lid and stir with a spoon a few times, which can also make the porridge thicker.