Earlier this month, several German states told retailers to stop selling Red Bull after a sample test by authorities in North Rhine-Westphalia state found 0.4 micrograms per liter in the drink.
Rosenberger said Friday the Austrian findings hovered around the detection limit.
Red Bull has said its cola is "harmless and marketable in both the U.S. and Europe."
QUICK HEADLINES | MORE US/WORLD | GET NEWS ALERTS
-----------------------------------------------------------------------------------------------
ABC13 SOCIAL NETWORKING
Find us on Facebook® | Follow us on Twitter | More social networking
-----------------------------------------------------------------------------------------------
MORE FROM ABC13
ABC13 widget | Most popular stories |
Street-level weather
ABC13 wireless |
Slideshow archive |
Help solve crimes
-----------------------------------------------------------------------------------------------
