Frontman Neil Fallon commented on the the recording process for Earth Rocker and how it differs from other CLUTCH albums:
"Last minute overdubs are fun. Harmonicas, tambourines (yes, we use those), claps, the odd backing vocal. Recording can be monotonous, so those unintended moments can be a lot of fun. It's kind of like kindergarten music class, but with beer. And sometimes the spontaneity of a last ditch idea breathes a lot of life back into a song that we've been beating up for weeks on end. A looming deadline can be a great muse!"
He continues, "It has a lot in common with Blast Tyrant in that Machine's production techniques are really unique. It differs from Blast Tyrant and a lot of other CLUTCH records in that, overall, the songs are faster and concise."
When asked about how this record how it differs from other CLUTCH releases guitarist Tim Sult added, "As far as the composition of the songs go, this is the heaviest and fastest CLUTCH album to date. ''