This Genius $20 Device Makes Iced Coffee in 1 Minute Without Watering It Down


When the warm weather hits, I turn into a full-blown iced coffee addict, making daily pilgrimages to my local cafe or drive-thru like it’s a religious obligation. Then I actually looked at my monthly spending, and let’s just say the numbers were humbling. I still don’t understand the economics of iced coffee costing three times as much as hot, but that’s a story for another day.

Making good iced coffee at home, without turning it into a watery disaster, takes planning — unless that is, you have my favorite summer caffeine gadget. The Hyperchiller is a little device that takes your freshly brewed, steaming-hot coffee and chills it to iced perfection in under 60 seconds — no dilution. Just fast, no-nonsense cooling that your caffeine-dependent self will absolutely love.

For those who’ve calculated exactly how much you’re hemorrhaging on daily iced coffee and then immediately tried to forget that number, this thing is basically a financial life raft disguised as a kitchen gadget.

Hyperchiller in freezer

The Hyperchiller in its natural habitat.

David Watsky/CNET

How the Hyperchiller works

The Hyperchiller is about the size of a large jar of pasta sauce. It has an inner cooling chamber with two layers of ice on either side. The ice layers are contained by internal stainless vessels so it chills the liquid when poured in without melting into it and diluting it. The hot liquid chamber is also thin so it spreads the hot beverage out, chilling it faster than a corksicle or a frozen whiskey sphere.

The Hyperchiller chambers on a table

Birds-eye view of the Hyperchiller chambers.

David Watsky/CNET

One thing to note is that you have to refreeze the device after each use (as you would with almost any other device in this category). After using the Hyperchiller for hot beverages, you’ll need to refreeze it for a few hours — ideally eight or more. For room-temperature tipples, including wine and whiskey, it won’t thaw as much and thus needs less time to refreeze. 

What’s nice is you don’t ever have to change or refill the water since the only chamber that gets dirty is the one in between. And even that only requires a quick rinse and then you can pop it back in. 

Read more: Here’s How Much You’ll Save Making Coffee at Home

How much chill does the Hyperchiller have?

Iced coffee chill test

The Hyperchiller is great for many things but iced coffee was my number one goal, so I hot-brewed a big pot of my favorite java. The freshly brewed coffee was 175 degrees F but when I ran 12 ounces through the Hyperchiller and left it in for one minute, what poured out was a full 100 degrees cooler, down to a room temperature 75 degrees. I left the rest of the hot coffee in for another minute (two total) and what emerged from the device had a chill, down to 59 degrees. I checked the inner chambers and there was still a good bit of ice, meaning I could chill the other half of the pot down — albeit not as well — or refreeze the Hyperchiller in just a few hours.

The Hyperchiller sits on a table with a chilly glass of coffee next to it

A minute after assembling, there was very little ice meltage in my Hyperchilled coffee.

David Watsky/CNET

This was good. Very good. 

Because tea brews at a similarly hot temperature and is often consumed at the same cold temperature as iced coffee, this coffee test applies pretty congruently to tea. 

The wine test

Experts say 48 to 55 F is optimal for drinking white wine. At room temperature, my wine measured in at a balmy 75, but one 45-second spin through the Hyperchiller and it was at a sip-perfect 45 degrees and ready to drink (so I did). With wine, the Hyperchiller didn’t have to do nearly as much work as with the hot coffee, and so the inner chambers were still mostly frozen. I could easily chill more wine (challenge accepted) or just another 25 minutes in the freezer, and it was back to solid.

The Hyperchiller chills with a glass of white wine

New happy-hour buds at home.

David Watsky/CNET

Much like the tea-to-coffee comparison, the Hyperchiller will do to whiskey what it does to room-temperature white wine, and so if you’re a chilled bourbon or Scotch drinker who doesn’t love the dilution effect, this will work wonderfully. Just make sure it’s washed out nice and clean so you don’t pick up unwanted Colombian dark roast flavors in your Pappy 20-year. Or maybe that would be good. Hmm…

Anyway, I love the thing. You can pick up a Hyperchiller in one of four colors for just $25 (or less if you nab it on sale) and have non-watered-down iced coffee in the time it takes to order at Starbucks. 

Watch this: How to clean your Keurig with distilled vinegar





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Researchers in South Korea developed a wearable system that uses seven smart rings to read finger and hand motions to translate American Sign Language and International Sign Language into text. The purpose is to make communicating easier between those who sign and nonsigners without needing a separate human interpreter. 

AI Atlas

According to the study, published Friday in the journal Science Advances, the system reliably recognized 100 ASL and ISL words during testing. It also performed well with users the system had not seen before, and it didn’t require recalibration for each person. Because the system detects words in sequence, it can produce sentence-level translations without extra training on grammar. 

ASL and ISL are the everyday languages of more than 72 million deaf and hard-of-hearing people. However, most hearing people do not know any words in these languages or have a very basic understanding. That gap makes certain tasks, like ordering at a restaurant or asking for help, much more difficult. 

A graphic shows two illustrated people talking in sign language, ASL and ISL. The graphic also shows the different components of the ring as well as pictures of hands modeling the rings.

A concept of how the rings work in the real world. 

American Association for the Advancement of Science (AAAS)

Existing sign language translator prototypes often rely on bulky gloves that can distract from or block natural hand movement or feel uncomfortable for the wearer, which limits real word adaption. Camera-based technologies can work well in controlled environments but are often limited to those places where a camera can be set up with a clear line of sight, the researchers wrote. 

To solve these problems, the researchers designed sensing rings for each finger that can capture precise motion and finger position while letting the hands move naturally. The rings can detect both signs that involve movement, like the words for “dance,” “fly” and “sun,” and signs that are held still, like “I” and “you.”

“These advances suggest that [the device could enable] barrier-free public translation systems for unseen users and unrestricted daily assistive interfaces,” the authors wrote in the study. 

The authors are affiliated with Yonsei University, Hankuk University of Foreign Studies and the Korea Institute of Science and Technology, among others. While the technology is still experimental, the authors wrote that the technology has the potential to ease communication difficulties. The underlying idea could also help improve controls for other systems, like virtual or augmented reality.

“Beyond sign language translation, the ring-type, wireless, and modular architecture of (wirelessly connected, ring-type sign language translators) may also be extended to other gesture-driven applications such as virtual or augmented reality control, touchless device interfaces, or rehabilitation monitoring systems where fine-grained hand movement tracking is essential,” they wrote.





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