Berlinzo Premium Clear Ice Cube Maker with Conversation Ice Prints – 8 Large 2.1" Crystal Clear Ice Squares – Giftable Idea for Party, Game Night & Just for Fun – Includes Storage Bag (Non-Electric)

tl;dr: This unit makes excellent clear ice with low effort. It helps to know the science behind it to avoid pitfalls. It's worth the slightly higher price for the build quality. I couldn't be happier with the huge clear ice cubes it makes for my whiskey drinks. Basic science behind clear ice: As ice crystals form, contaminates are pushed away. Normal ice trays freeze from all directions so contaminates end up in the middle of the cube, making them cloudy. By surrounding the mold on 5 sides with insulation, the water directionally freezes (top-down in this case) leaving a cube of ice that has pushed all contaminates into the water below the mold. Stopping the freezing process before the reservoir of water freezes aids in mold removal. Fit and finish: I chose this model because it has a hard outer shell with dense insulation molded to an exact fit. Other models use that cheap layered white foam with no shell. Inside of the molded insulation is fitted the reservoir, which again is a high quality plastic and fits perfectly inside the insulation shell. Finally, the molds are a thick silicone that has a high-quality feel. 10 out of 10 for fit and finish. Functionality: Each cube has FOUR holes to push contaminates through verses only 1 in other models I looked at. It is easy to fill, easy to insert the molds, and just a pleasure to use. You will need freezer space for it, making clear ice takes space. Removing the molds can be frustrating. Be patient, follow instructions and let the thing sit for 10-15 minutes prior to attempting removal. Alternate sides, go slow and they eventually break free. It is easier if the freezing process is halted before the reservoir has frozen, but this takes trial and error to dial in. My freezer's optimum time ended up being 27 hours. After use, I found that I was able to simply pour the reservoir water out, then pull the thin bit of ice that did form straight out and restart the process immediately. Leave it too long in the freezer and you'll have blocks of ice to deal with. Tips: Fill the reservoir with WARM water up to the point the bottom of the molds will sit. Then insert the molds and fill with COLD water. After filling, tip slightly from side to side to allow any trapped air to escape. This will aid in the preventing reservoir from freezing too easily. Ice heaves happen. Sometimes as ice forms/expands, it pushes up. So some cubes may be larger than others. It's still clear and cool.

I sort of kind of had my doubts based on experiences from other reviews left here. They were mixed. Some people had great success while others complained it sucked right out of the box. I followed the instructions exactly. Cleaned it well with soap and water first. Rinsed it well and then filled with warm water - not hot, not cold but warm. Froze it for over 24 hours and checked on it. It was so clear that I thought perhaps it hadn't frozen all the way through yet. I took it out and moved it around and didn't notice any air bubbles moving inside of the cube. I went ahead and removed the mold and then pushed the ice cubes out. They were solid and they were crystal clear. The eyes left inside of the bottom of the mold had not Frozen all the way through but even it was clear after the water drained out. This is a quality item and I'm very impressed with how my ice cubes turned out. My only wish is that it included additional silicone stamps for decorating the ice other than just the two that it came with. I highly recommend this and if there is a four-cube version, go for that one as well

This truly makes perfectly clear Ice Spheres! Works well, although, you do have to melt a good bit of ice in the bottom of the container before refilling it for another round of ice spheres. Still a very nice product and for the price, it works very well.

The ice comes out completely clear if you go through the process very slowly and used high quality water. I boil my water, allow it to cool completely and then filter it in a Brita jug. You have to leave the ice sitting in the mold for 5-10minutes before attempting to remove it too.

Tried different ways to get crystal clear cubes for ricks glasses and nothing worked until I used this ice maker. The cubes are crystal clear perfection. Its compact and easy to use. Be sure to read the instructions first.

Funciona exactamente como dice Solo tarda más tiempo del mencionado pero no importa es una belleza, ojo te sirve para tus bebidas, si lo quieres para producción tarda mucho

Works exactly as advertised, Ice perfectly clear and left over ice Is perfect for extra mix ice.

Works very well but still a lot of effort to make clear ice. Not as simple as the description says. Lots of manipulation to get the ice out the mold.

I’ve never written a review in my life but I’m so impressed with this product I had to say something. Simply, this thing makes perfectly clear crisp square ice cubes. I read a lot of people complain, complaining that it’s hard to get the ice out of the mold, etc. etc. But if you just give it five minutes out of the freezer, everything comes apart super easily. I used to make ice in a shallow cooler and then cut it, but could never get it Perfectly square. This totally works and I highly recommend it. 10/10