Note The lid needs to be turned to tighten itThe lid is a bit smaller that the opening You place the lid on the opening then turn it to tighten it that makes an airtight lid EASY TO CLEAN The airtight glass carafe is very easy to use so you can enjoy maximum performance without the hassle of handwashing the drink container This glass pitcher is dishwasher safe so all you have to do to clean it is place it in the dishwasher and youre good to gosured that it is safe for you and your family