In the summer, many people have the habit of putting ice in drinks to cool down. However, frozen ice will lose its natural flavor and dilute the drink. However, on the market today there is a type of permanent ice that is being used by many people. In addition to not losing the flavor of the drink, it can also be used many times, even forever. So what is permanent ice, what is it made of and is it safe? Let's find out through the article below.
Table of Contents
Eternal ice or unmelting ice, also known by other names such as Cooling Cubes, Scotch Rochs or Whiskey Stones, was invented in 2007 by Dave Laituri, a designer living in Massachusetts, USA. After its announcement, eternal ice quickly became widely used in the US and European countries.
The non-melting ice cubes have the same shape and size as regular ice cubes, each weighing 70 grams and measuring 25mm x 19mm.
The shell of the non-melting ice cube is made of 304 stainless steel, safe for human health, inside is a cooling gel compound.
|
Eternal Stone |
Common stone |
|
|
Aesthetics |
Brings uniqueness to drinks. |
Not much attention. |
|
Keep the flavor |
Keeps the flavor well as it does not dilute and lose the flavor of the drink. |
Watering down dilutes and spoils the flavor of the drink. |
|
Reuse |
Reusable many times. |
Are not. |
|
Safety level |
Made of 304 stainless steel, safe for health. |
Depends on the quality of the water source used to make ice. |
|
Cold retention time |
Average 3 - 4 hours. |
Depending on size and outside temperature but usually only a few minutes. |
|
Other benefits |
Does not create frost in the freezer compartment, helping to prolong the durability of the refrigerator. |
Often causes frost inside the refrigerator, which can affect the durability of the refrigerator. |
Put the unmelted ice cubes in the freezer for about 2 to 4 hours before use.
The amount of ice used depends on different cooling requirements. But with 2 - 4 permanent ice cubes can cool 1 liter of drink after 5 minutes.
The cooling time of permanent ice varies depending on the brand and conditions, but ranges from 40 to 60 minutes. There are some unmelted ice cubes of unknown origin that can only stay cold for about 10 minutes, but products from reputable Japanese and American brands can extend the cooling time to several hours.
After use, simply rinse the permanent stone with clean water for reuse next time.
Tired of the frustrating Microsoft Teams Vcruntime140.dll missing error crashing your meetings? Discover proven, step-by-step fixes to resolve it fast and restore smooth teamwork. No tech skills needed!
Struggling with Microsoft Teams 'Undefined Error' (2026)? Discover proven, step-by-step fixes like clearing cache, updating the app, and more. Get back to seamless collaboration fast!
Discover simple, step-by-step methods to disable Microsoft Teams at startup and unlock better PC performance. Faster boot times, less resource drain—perfect for Windows users seeking smooth operation.
Stuck with Microsoft Teams "Network Error" offline? Discover proven, step-by-step solutions to fix Microsoft Teams network error offline quickly. Get back online fast—no tech skills needed!
Struggling with Microsoft Teams Error 4oggx? Discover proven fixes to resolve sign-in failures, crashes, and connectivity issues fast. Get back to productive calls without frustration!
Encountering the frustrating Microsoft Teams "Remove Account" Data Error? Discover quick, reliable fixes like clearing cache, resetting the app, and more to get back to seamless collaboration without losing data. Updated with the latest solutions.
Tired of the frustrating Microsoft Teams "Layout Error" Sidebar? Follow our proven, step-by-step troubleshooting guide with the latest fixes to get your Teams sidebar working smoothly again. No tech skills needed!
Stuck with Microsoft Teams offline error in 2026? Discover proven troubleshooting steps, common causes, and quick fixes to restore your connection fast. No tech skills required!
Tired of Microsoft Teams crashing with "Error M" memory issues? Follow our step-by-step guide to fix Error M in Teams, clear cache, update software, and boost performance—no tech skills required!
Discover the easiest step-by-step guide to setting up Microsoft Teams Town Hall events. Host massive virtual gatherings effortlessly with pro tips for seamless execution. Perfect for leaders and organizers!
Struggling with Microsoft Teams "Download Error" on PC? Discover proven, step-by-step fixes to resolve download failed issues quickly. Get back to seamless collaboration in minutes—no tech skills needed!
Stuck with Microsoft Teams "Error L" License error? Follow this step-by-step troubleshooting guide to resolve licensing issues quickly, restore access, and boost productivity without IT hassle. Updated with latest fixes.
Tired of Microsoft Teams video call freezing mid-meeting? Follow this proven troubleshooting Microsoft Teams video call freezing guide with quick fixes, advanced tips, and real solutions to restore smooth video instantly.
Frustrated by Microsoft Teams 'Download Failed Due to Unexpected Error'? Discover proven, step-by-step solutions to fix this common issue quickly and get back to seamless collaboration. Updated with the latest fixes for peak performance.
Frustrated because your Microsoft Teams recording failed? Uncover the top common reasons like permissions issues, storage limits, and network glitches, plus step-by-step fixes to prevent future failures and record flawlessly every time.
