[s4e10] Salud -

The blue meth's purity remains a central plot point; Jesse's success in Mexico highlights that the "blue" recipe is now a globally coveted commodity.

Skyler continues her attempt to manage Ted Beneke’s tax problems, leading him to believe the money she provided came from a "Great Aunt Birgit". [S4E10] Salud

To sell the ruse, Gus drinks the poisoned tequila first, knowing he has only minutes to purge it. The blue meth's purity remains a central plot