Bestheim is a long-established Alsace producer based at Bennwihr and Westhalten, with co-operative roots among local growers, and today draws on vineyards across the Alsace plain and the foothills of the Vosges. The Cremant d'Alsace Brut Premium is a Non-Vintage blend built for a consistent house style, sourced from varieties permitted in the appellation - typically Pinot Blanc and Auxerrois with other Alsace grapes. The region's continental climate, sheltered by the Vosges, gives a dry, sunny growing season, while varied soils of limestone, granite, clay and sandstone across the member vineyards contribute freshness and aromatic definition to the base wines.

The base wines are pressed gently and fermented cool to retain acidity, then blended before the wine is made sparkling by the methode traditionnelle, with a second fermentation in bottle as required for Cremant d'Alsace. The wine is aged on lees in bottle for at least the appellation minimum of nine months, building fine bubbles and a subtle bready character, before disgorgement and a brut dosage. The traditional method and lees ageing give the wine its citrus and orchard-fruit profile with a crisp, dry finish. Exact blend proportions and dosage are not publicly confirmed for this release.