The key difference between premium and ultra-premium liquors primarily lies in quality, production methods, aging processes, and pricing, impacting your choice depending on the occasion, taste preferences, and budget.

1. **Quality and Ingredients**: Ultra-premium liquors are often made with higher quality ingredients compared to premium versions. The selection of raw materials is stringent, aiming for the best possible flavor and purity.

2. **Production Process**: Ultra-premium spirits may use more artisanal or traditional methods, often handcrafted in smaller batches. This attention to detail in the distillation process can lead to a smoother and more refined taste.

3. **Aging and Storage**: For liquors where aging is relevant, such as whiskey or rum, ultra-premium brands often have longer aging processes in superior quality barrels, which enhances the depth, complexity, and smoothness of the flavor.

4. **Pricing**: Naturally, with higher quality, the price of ultra-premium liquors is significantly higher than premium ones. This reflects not only the cost of better ingredients and methods but also the branding and market positioning.

5. **Intended Use**: Premium liquors are generally suitable for cocktails and mixed drinks, where subtle nuances of the spirit can be overshadowed by other ingredients. Ultra-premium spirits are often enjoyed neat or with minimal additions, to fully appreciate their complex flavors and craftsmanship.

Understanding these differences can help you make more informed decisions when selecting spirits for personal enjoyment or special occasions.