Buch spent five years making Suntub, which she explained was “the time it needed”; for three of those years she lived in the “countryside by the ocean”, explaining that she “need[ed] to be on [her] own to make this music”. Buch played all instruments, and produced and mixed the record herself, aside from several drum recordings played by her friend Tanya. Buch recorded her vocals in her car and reamped her guitar through her car’s stereo as well as “in Kalundborg swimming pool, sauna, [and] changing room”.