Jesse calls Walter "Walt" for the first of only two times in the series run. All the other times Walt is referred to by Jesse as "Mr. White."
The song that Hank sings while he is brewing is a 1970s advertising jingle for Löwenbräu.
When Hank is having his first panic attack in the elevator, the noise of Jesse's bouncing lowrider is playing.
The episode is dedicated to the memory of Kim Manners, who worked along with Vince Gilligan on The X-Files (1993). Kim Manners died from lung cancer in 2009.
The name of the towing company (and same place the RV was stored) as labeled on the side of the truck is "Crank It Up." "Crank" is another street name for meth.