ZOKU Instant Iced Coffee Maker, Reusable Beverage Chiller Cools Hot Beverages in Minutes Without Dilution, Portable 11-ounce Tumbler With Spill-resistant Lid and Straw, Purple

I hesitated about buying this because it's a bit pricy for a single-purpose, single-use coffee cup. But I really love iced coffee -- and hate diluted and muddy water. Even experienced baristas seem to have trouble making a cup of iced coffee that isn't so watered down by melted ice that it's worthless. So I tried it -- and guess what?! Perfect iced coffee. It even makes a thin layer of frosty ice in the edges. The inner cup is stainless steel and pretty much indestructible. (Zoku makes an all-plastic version of this cup for making slushies out of kool-ade or soda or whatever -- but it certainly would not work for piping hot liquids....) The lid has a silicone gasket that keeps it secure and sealed, and another on the lip where the straw fits -- the cup removes from the outer colored-plastic sleeve for freezing and so the sleeve can be washed. It's true that it makes a relatively small serving. If you're looking for a Big Gulp or a Super-Size-Me cup of iced coffee, this is not the cup for you. But if you drink your coffee one cup at a time, and like the idea of a treat-cup -- then this is an excellent choice. I usually make my cup of coffee (or chai) in a pyrex 1c measuring cup -- add my sweet and my milk/half-and-half -- and then pour it into the cup. That way, the "hot coffee" is already cooled down a bit and takes a shorter time to chill. Wonderful for a chilled matcha latte.

Great product!! I was using the Hyper Chiller which worked well but still had to add ice to keep it cold while drinking. Plus I went through 3 of them because the plastic of the threads on the internal container kept cracking and splitting causing leakage. The Zoku is fantastic. No need to add ice and it keeps my coffee cold for a long time. So cold that I often have frozen coffee in the bottom - a coffee slushy! Highly recommend. It only hold a little over 7 ozs., but I make my coffee with Nespresso which makes a 7.3 oz. Cup, so it’s perfect!!

Freezer part may lack durability. Don't drop it on a hard floor!

Doesn't hold enough fluid but works well. Should have checked the ounces

I had seen this coffee cup featured on a daytime TV show in one of their "gift guide" segments. I drink iced coffee every morning so I thought, "oh this coffee cup will be great for travel, or when on the go". I read the other reviews about the cup being really small so I made myself a cup of ice coffee, using ice, then poured out the liquid (coffee and creamer) into a measuring cup to see how the Zoku Cup compared to what I usually drink. It seemed pretty comparable so I went ahead and ordered the cup. when I opened the package the first thing I thought was, "wow this cup is really small LOL". I froze the cup all that day and all that night and when I used the cup the following morning it only made my coffee cool/room temperature-ish after more than the required time in the instructions. I ended up returning the cup.

This only holds 8oz and then if it’s full, you cannot use the lid because it suctions inside the cup vs screwing on. It works, great concept, awful execution and misleading info on holding 11oz. Makes the coffee cold, but way overpriced for its faults.

If I put my hot coffee in it and then swirl my coffee around, I have iced cold coffee in minutes. If I forget it and leave it for 15 min, my coffee turns into ice. lol. So this is great if you don't like to wait very long for iced coffee. Takes up a lot less space in the freezer than the coldwave or the hyperchiller. If you're looking to leave your coffee inside for a while before drinking it, it might be better to leave the cup in the fridge or maybe turn the temp down on your freezer so that your coffee cools down more slowly and doesn't turn to ice, but I personally love, love, LOVE that I can get nice iced cold coffee so soon after putting it in. When I've left it in too long, I've even discovered that iced slushy coffee is actually really yummy. If you have a long spoon you can also make your own home made ice creams in this. So it's really versatile. I haven't tried to use it as a hot drinks tumbler, but I imagine if you don't freeze it you could probably use it to keep hot drinks hot too? I love it. It's definitely heavier than most tumblers and only takes about 11 ounces of coffee at a time. That's a perfect amount for me, but ymmv.

It’s expensive for what this is. I would like a much larger size like that of a Starbucks frappacini. Also the bottom is so narrow it ices up too fast and the straw is useless. A wider straw like that for a milkshake. I’d say, keep looking.

Works great ! Worth it

used to drink coffee couple times a week. but ive been having iced coffee once a day with this cup! I use a doce gusto coffee machine to make the coffee. 5 mins later it is ice cold! Love it!

Cools well, but not to the point of "icy cold". It's cool enough so that if you add ice after it doesnt melt fast. The straw feels easy to break though.

Too small

Perfecto para tener fresquito el café recién hecho.