高端冰块已成为一个高利润利基，主要由“来源故事”驱动。酒吧会进口日本、挪威及格陵兰冰川冰块，甚至运到迪拜有 9,000 海里（16,668 公里），即使这类冰在饮品中稀释口感上的功能上并不更优。纽约的 Hundredweight Ice 报称每年采购超过 3 百万磅（约 1,360,800 公斤）的冰，并于 2025 年创造 300 万美元收入。价格差异很大：Disco Cubes 为 9 块卖 75 美元，而 Arctic Ice 为 6 块卖 100 美元（每块约高 2 倍）。Mike Berners-Lee 批评这种模式是浪费式消费，称其价值主要来自叙事而非实际功能。

Christoph Salzmann（UCL）指出，实验室可透过方向性凝固（在 2024 年研究后）达到同等或更高纯度。冰从下向上缓慢生长时，会将盐分和气体排出，形成比自然冰川冰更清晰的单晶结构；而天然冰川冰因雪晶界和微孔仍会有杂质。冰的年龄与产地被当作品质讯号被行销，但它仍含有包气。Clinebell 机（1983 年设计）将此原理放大到商业规模，生产 25–300 磅（11.3–136 公斤）单块，再供接待业切割使用。

文章指出家庭也可制作透明冰。Klaris Mini 现价 300 美元（较先前 550 美元下降），用隔热容器让冰块自上而下结晶并去除底部混浊区，在约 20.3 公分边长的机箱中一次产生 2 块 5.1 公分冰。建议流程是先用过滤或去离子水、先煮沸排气再冷冻，并在从更低温度回升到接近融点（-1 到 -2 摄氏度）后再切割。水质案例提及，拉斯维加斯溶解固形物约 450 ppm，而科罗拉多为 45–48 ppm；在反渗透条件下，Crystal Geyser 瓶装水效果最佳。普通调酒量下，极纯冰块的健康风险极低，只有大量饮用才可能引发渗透压问题。

Luxury ice has become a high-margin niche driven by provenance branding. Bars import Japanese, Norwegian, and Greenland glacier ice, including 9,000 nautical miles (16,668 km) to Dubai, even though such ice is not functionally superior for taste dilution. New York’s Hundredweight Ice reports over 3 million pounds (≈1,360,800 kg) harvested annually and $3 million in revenue in 2025. Price bands are highly stretched: Disco Cubes sells 9 cubes for $75, while Arctic Ice sells 6 cubes for $100 (about 2x higher per-cube cost). Mike Berners-Lee criticizes this pattern as wasteful consumption, arguing value is mostly narrative rather than practical function.

Christoph Salzmann (UCL) says similar or better purity can be achieved in the lab, with his post-2024 directional-freezing approach. Ice grown slowly from bottom to top expels salts and gases, producing clearer single-crystal structure than natural glacier ice, which still retains grain-boundary haze and inclusions. Age and source are sold as quality signals, but not always technical superiority. Clinebell machines, introduced in 1983, scale the method commercially, producing 25–300 lb (11.3–136 kg) blocks that are later cut for hospitality use.

The article presents home clear ice as a practical alternative. Klaris Mini now sells for $300 (down from $550), using an insulated container setup to freeze from top down and remove cloudy lower fractions; its approximately 20.3 cm box can make two 5.1 cm cubes at once. Recommended workflow is filtered or deionized water, boil to degas, freeze quickly, then cut only after warming near melting point (−1 to −2°C). Water quality examples cite 450 ppm dissolved solids in Las Vegas versus 45–48 ppm in Colorado, with Crystal Geyser performing best under reverse osmosis. For normal cocktail serving, very pure ice is considered low health risk unless consumed in large volumes, where osmotic imbalance becomes a concern.