The cooking time for porridge in an electric slow cooker typically ranges from 4 to 8 hours on low setting, or 2 to 4 hours on high setting. This duration allows the grains to absorb the liquid and soften, resulting in a creamy and thick porridge. The exact cooking time can vary depending on the specific slow cooker model, the type of grains used, and the desired consistency of the porridge.

The reason for the varying cooking times is due to the different heat levels and the way electric slow cookers operate. On the low setting, the heat is more consistent and gentle, allowing for a longer cooking time that is ideal for grains like oats, barley, or rice. These grains need more time to fully hydrate and soften. Conversely, the high setting provides a faster cooking process, which is suitable for quicker-cooking grains like quinoa or quick-cooking oats.

According to a study published in the Journal of Food Science, the cooking time for porridge in an electric slow cooker can be influenced by the grain-to-liquid ratio. For example, a 1:2 ratio of grains to liquid is recommended for a creamy porridge, while a 1:3 ratio can result in a thinner consistency. The study also found that the cooking temperature and the type of grain play a significant role in the final texture and flavor of the porridge.

In summary, the cooking time for porridge in an electric slow cooker varies based on the grain type and desired consistency. A longer cooking time on the low setting is ideal for grains that require more time to soften, while a shorter cooking time on the high setting is suitable for quicker-cooking grains. The grain-to-liquid ratio and cooking temperature also impact the final outcome of the porridge.