The time it takes to wash dishes for four people can vary depending on several factors, such as the number of dishes, the complexity of the meal, the efficiency of the dishwasher (if used), and the individual's dishwashing habits. Here are some general estimates for different scenarios:
Using a dishwasher: If you have a dishwasher, loading and unloading the dishwasher can take around 5-10 minutes, depending on the machine's capacity and how well you organize the dishes. Pre-rinsing or scraping off food residues before loading can also add a few minutes.
Hand washing without soaking: If you're washing dishes by hand without soaking them first, the time can range from 20-30 minutes, depending on the number of dishes and the complexity of the meal. This estimate includes scrubbing, rinsing, and drying.
Hand washing with soaking: Soaking heavily soiled dishes before washing can save time and effort. With soaking, the time might be reduced to 10-20 minutes, again depending on the dishes' quantity and level of dirtiness.
Complex or greasy meals: If you've had a large, multi-course meal with greasy pans and pots, it may take longer to wash the dishes due to the extra effort needed to remove stubborn food residues.
Drying method: Keep in mind that air drying takes more time than using a dish rack or towel-drying the dishes.
Remember that individual factors and dishwashing habits can influence the time it takes. Some people may be more efficient and organized with their dishwashing routine, while others may take a bit longer. Also, the division of labor among the four people can make a difference. If everyone pitches in to wash, dry, and put away dishes, the task can be completed much faster.
Ultimately, it's challenging to give an exact time since every household and meal situation is unique. However, the estimates provided above should give you a general idea of how long dishwashing for four people might take.