The band and their producer Jack Richardson felt that the sound at RCA was inferior to that of the independent A&R Studios, where Wheatfield Soul was recorded.

They duly recorded Canned Wheat at RCA and secretly re-recorded two of the strongest numbers "Laughing" and "Undun" nearby at A&R.

There was no time to re-record the rest of the material, so Canned Wheat was released, as recorded at RCA studios, yet including the "Laughing" and "Undun" versions cut at A&R.

In addition to the standard two channel stereo version a four-channel quadraphonic mix was also issued on the 8-track tape format in 1971.

The first run of Buddah CD pressings accidentally replaced the song "Species Hawk" with "Miss Frizzy".