Bowl capacity
The volume of the food bowl provided in the food processor. Most often the full volume is indicated, not the working volume. It should be noted that you can not use the bowl completely when cooking, the working volume is approximately 70% of the total. Thus, about 4 liters can be used in a 6 liter bowl. And if you go into the recipes and power modes of the food processor (see the instructions), then smaller numbers are acceptable for preparing a particular dish (kneading dough, mixing salad, etc.).
Note that a large capacity affects the dimensions and weight of the unit, and also requires a more powerful engine — which affects energy consumption and price. So when choosing a bowl by capacity, you should not chase the maximum capacity, but take into account the planned volumes of work.
Blender capacity
The volume of the blender jar (see Blender) that the food processor is equipped with. Standardly, it is about one and a half liters; for a large family, it makes sense to select a larger capacity (about 2 liters), and 1 liter will be enough if a blender is rarely needed and for small quantities of the product.
Number of speeds
The number of fixed speeds of rotation of the attachments provided in the design of the food processor. The more of them, the more accurately you can choose the required speed for each specific mode of operation. It is worth noting that some devices do not have fixed speeds — the control is carried out smoothly (see Stepless speed controller)
Heating
The heating function in the food processor's working container is useful for certain recipes, especially when specific dough temperatures are needed or preheating the bowl is required. This feature is commonly found in models with a steam cooking mode, which involves exposing food to hot steam. As a result, the heating option is inherently present in all such models.