About this item The filter screen of the coffee pot is made of 800 mesh 304 ultra-fine stainless steel filter screen,stainless steel fine mesh,the juice is delicate and mellow,and it is durable and not deformed for a long time. The water tank of the coffee machine is made of Tritan water tank,a baby bottle grade material,which is odorless and healthy. This drip coffee machine rotates at an average speed to inject water,which is more stable than manual water control,allowing you to restore the original aroma of coffee to a high degree anytime,anywhere. The ratio of coffee powder to water is between 1:14.5-15.5.This coffee machine can add up to 15g of powder(10g is recommended),the extraction rate is between 18%-22%,and the concentration is in the golden range of 1.15%-1.45% . This is a portable coffee maker that allows you to enjoy smooth and delicious hot or cold brew coffee at home,and it is also suitable for iced teas and beverages.Easy to use,you can easily brew the coffee you want.