Segmentation by type classifies duty‑free liquor into four core categories—Spirits, Wine, Beer, and Liqueurs—each with sub‑type variations that influence shelf‑space optimization and revenue contribution. Spirits (approximately 45 % of sales) encompass whiskey, vodka, rum, gin, and tequila, with premium single‑malt whiskies and aged rums driving higher margin segments. Wine (about 25 % of sales) includes red, white, and sparkling varieties; the rise of boutique vineyards and organic certifications fuels growth in the premium wine niche. Beer (roughly 20 % of sales) covers lager, ale, and craft‑brew offerings, where limited‑edition releases and local brand exclusivity attract younger travelers. Liqueurs (around 10 % of sales) consist of herbal, fruit, and cream‑based products, often positioned as gift‑ready items due to their distinctive packaging. Understanding these type‑level subcategories enables precise market taxonomy, supporting targeted merchandising and pricing strategies across the duty‑free landscape.