Any method of heating food to prepare for eating is included in this prohibition. This is different from "preparing". For example, a salad can be made because the form of the vegetables doesn't change, only the size. However, the vegetables may not be cooked to soften them for eating. Baking was performed in the Mishkan as showbreads were continually required. However, they were not required for the structure. Some opine baking is listed regarding the preparation of the dyes used for the tapestries.