The Advertising Standards Authority rejected complaints against Anheuser-Busch about a poster advert which showed a label from a bottle of Budweiser next to the text, Born on date. Fresh beer tastes better. When was your beer born?'.
Complainants said the ad misled consumers because many British beers were aged to improve taste.
But the ASA disagreed, saying the poster did not suggest aged beers lacked freshness.
Anheuser-Busch submitted industry reports which stated that beer started to lose flavour when brewing ended, and that retaining the taste of newly packaged beer remained a problem.