Gatz Altbier is a traditional German Altbier brand with roots in the Rhineland, historically associated with the brewing culture of the Düsseldorf region. The brand became part of the Carlsberg Germany portfolio over the years, alongside fellow Altbier label Hannen Alt, until a significant ownership change took place in 2022. In April 2022, Carlsberg Germany announced the sale of both Gatz Altbier and Hannen Alt to Bolten Privatbrauerei, a well-established independent brewery with a long history in Altbier brewing. This transition placed Gatz back in the hands of a dedicated craft-focused Altbier producer, signaling a renewed commitment to the style's traditional copper-colored, top-fermented character. Gatz Altbier represents the enduring appeal of the Altbier style — a top-fermented beer with a clean, malt-forward profile and restrained bitterness, typical of the Düsseldorf brewing tradition. With its move to Bolten Privatbrauerei, the brand is positioned to continue honoring this regional German brewing heritage.