The Alcohol and Tobacco Tax and Trade Bureau is taking back last week's approval of a powdered alcohol product called "Palcohol."
An e-mail sent to The Associated Press said approval was made in error.
A spokesman for the Palcohol's parent company -- Lipsmark -- says the problem is a discrepancy in the fill level of the powder in each bag.
The firm says it will resubmit its labels for approval.