Researchers and governments are paid great interest concerning food safety and quality of food stuff. Determination of moisture and ash contents was accomplished by using simple, easy and low cost method to establish a database for agricultural commodities. Twenty four types of agricultural commodities were collected from the local market in Al-Rass governorate, Al-Qassim region, Saudi Arabia. The samples were collected in the period from the beginning of January 2017 to the end of July 2017. The survey show that higher values of moisture contents were found in tomato and cucumber (95.79 and 94.65%, respectively) while the higher values of ash content were found in leafy vegetables in particular spinach and watercress of 1.91% and 1.51% respectively.