How we tested clear ice making
To find the best way to make clear ice, we tested different methods side-by-side in the Good Housekeeping Institute Kitchen Appliances and Innovation Lab. We began by comparing how different types of water (spring water, distilled water, tap and boiled tap water) performed in standard ice cube trays after being frozen overnight.
None of these options yielded perfectly clear results, though we found that all types of water produced clear edges and cloudy centers (instead of being cloudy throughout). We then followed up by freezing the same waters in a directional freezing ice cube tray, filling each column with a different type of water. We left these to freeze overnight as well, then compared them immediately after removing from the mold, five minutes after removing, ten minutes after removing and finally, 15 minutes after removing.
We found that spring water produced the clearest results, though both tap or boiled tap water were fairly clear (aside from a few bubbles and cracks). Only distilled water failed to come out perfectly clear. Instead, it appeared to be filled with cracks running down the middle of the cube.
After all that, we refilled both the directional freezing tray and a standard ice tray with spring water, froze them overnight and served each with a tablespoon of whiskey to see if there was a difference in taste. Our testers did not notice a discernible difference in quality, though they did report that the drinks with the directional freezing tray cubes tasted stronger.
Why make clear ice?
The benefits of clear ice are mostly aesthetic, though some bartenders and whiskey enthusiasts say clear ice melts more slowly, so your drink stays stronger for longer. (Though we think it's important to note that the slower melting could be due to the difference in surface area between the different shapes of ice.) Some pros also say that ice becomes cloudy when there are "impurities" present and that in turn can affect the taste of your drink, though in our testing we found any taste difference between clear and cloudy ice to be negligible.
What is directional freezing?
In our testing, we found the easiest method of obtaining crystal-clear ice is through a process called directional freezing. That basically means the water freezes from top to bottom — not unlike how a lake freezes over in cold weather. As the water freezes, anything that would make the ice cloudy settles to the bottom, leaving the top clear. A directional freezing ice cube tray has excess space under the mold that allows for any sediment to settle, so you can pop perfectly clear ice out of the upper silicone mold.
Why trust Good Housekeeping?
During her time working at the Good Housekeeping Institute, Abigail Bailey has tested, researched and written about everything from Japanese knives to hammocks. For this story, she spent several days conducting side-by-side testing of various clear ice freezing methods. She loves the look and taste of an expertly crafted cocktail, and often entertains her whiskey enthusiast father and brother.
Facts Only
The Good Housekeeping Institute tested methods for making clear ice in their Kitchen Appliances and Innovation Lab.
Different water types (spring, distilled, tap, and boiled tap) were frozen overnight in standard ice cube trays.
All water types produced ice with clear edges and cloudy centers in standard trays.
A directional freezing ice cube tray was used to freeze the same water types overnight.
Spring water produced the clearest ice in directional freezing trays.
Tap and boiled tap water resulted in fairly clear ice with some bubbles and cracks.
Distilled water produced ice with visible cracks running down the middle.
A taste test compared whiskey served with ice from directional freezing trays and standard trays using spring water.
Testers reported no noticeable taste difference but perceived drinks with directional freezing ice as stronger.
Directional freezing involves water freezing from top to bottom, allowing impurities to settle at the bottom.
The directional freezing tray has excess space under the mold to collect sediment.
Abigail Bailey, a researcher at the Good Housekeeping Institute, conducted the testing over several days.
Executive Summary
The Good Housekeeping Institute conducted tests to determine the best method for making clear ice, comparing different water types (spring, distilled, tap, and boiled tap) in both standard and directional freezing ice trays. Initial tests with standard trays showed all water types produced ice with clear edges but cloudy centers. Directional freezing trays, which freeze water from top to bottom, yielded clearer results, with spring water performing best. Distilled water produced ice with visible cracks, while tap and boiled tap water were fairly clear but had minor imperfections. A taste test with whiskey revealed no significant difference in flavor between clear and cloudy ice, though drinks with directionally frozen ice were perceived as stronger. The benefits of clear ice are primarily aesthetic, though some claim it melts more slowly and has fewer impurities. The directional freezing method works by allowing impurities to settle at the bottom, leaving the top portion clear.
The testing was conducted by Abigail Bailey, who has experience evaluating various products at the Good Housekeeping Institute. The process involved multiple rounds of freezing, observation, and taste comparisons to assess clarity, durability, and impact on drink quality. While the aesthetic appeal of clear ice is widely acknowledged, the practical benefits, such as slower melting and taste differences, remain debated. The study suggests that while directional freezing is effective, the choice of water type also plays a significant role in achieving clarity.
Full Take
The narrative presents a straightforward, evidence-based exploration of clear ice production, grounded in empirical testing rather than speculative claims. The strongest version of this analysis is its methodological rigor—comparing multiple variables (water types, freezing methods) and acknowledging limitations (e.g., negligible taste differences). It resists overhyping the practical benefits of clear ice, noting that aesthetic appeal is the primary advantage while cautiously addressing claims about melting rates and impurities.
Pattern scan: The piece avoids manipulation tactics, focusing on transparent methodology and balanced conclusions. No emotional exploitation, distortion, or bad faith arguments are detected. The only potential framing bias is the subtle emphasis on directional freezing as the "easiest" method, which could align with commercial interests in specialized ice trays, but this is presented as a tested finding rather than an unsupported claim.
Root cause: The paradigm here is consumer-oriented problem-solving, where scientific curiosity meets practical application. The unstated assumption is that clarity in ice equates to quality, a notion borrowed from high-end mixology culture. Historically, this echoes the broader trend of elevating everyday experiences (like drinking whiskey) through perceived refinement—similar to the rise of artisanal coffee or craft cocktails.
Implications: For human agency, this democratizes a technique once reserved for professionals, empowering home enthusiasts. The cost is minimal (specialized trays are affordable), but the benefit is largely psychological—pride in craftsmanship. Second-order consequences might include increased demand for premium ice-making tools or heightened expectations in home bartending.
Bridge questions: How much of the perceived "strength" in drinks with clear ice is placebo? Would blind taste tests with larger samples yield different results? What environmental impact does the pursuit of "perfect" ice have, given energy use in freezing and water waste?
Counterstrike scan: A bad actor pushing this narrative might exaggerate the taste or health benefits of clear ice, leveraging authority (e.g., "bartenders say...") to sell overpriced products. The actual content doesn’t match this pattern—it’s transparent about limitations and avoids hyperbole. The closest alignment is the subtle endorsement of directional trays, but this is supported by testing.
Patterns detected: none
Sentinel — Human
The article shows strong signs of human authorship, with natural language variation, personal voice, and detailed experimental methodology. No significant indicators of synthetic generation were detected.