Your brisket turned out dry due to the lack of moisture. The brisket is a large chunk of meat that experiences a plateau in temperature, or what they call a ‘stall’. This stall happens when the internal temperature of the meat reaches 160⁰F. At this point, the meat will stop increasing in temperature as it starts to release moisture. The moisture that escapes from the meat is enough to cool down the meat and stop the increase in its internal temperature. To stop the moisture from escaping, you can wrap your meat with foil. Wrapping the meat in foil will make sure that the remaining moisture in your meat will be kept inside the meat.