Great
"I bought these to use when I use my cooler as a freezer, but I’m sure that they will work out great"
A single Cryo Block measures 8" x 8" x 1"(20.5cm x 20.5cm x 2.4cm), weighs around 29oz (830g) and contains around 22 fl oz (650ml) of active ingredients.
When we talk about coolers and ice cubes, it’s usually a question of how long until they melt — but with our new Cryo Blocks, your Oyster can actually freeze water, meaning you can now store anything from ice cream, food, medicine etc at below freezing point for hours.
Just to be clear, we're not recommending using the Oyster to make ice cubes, we're simply showcasing how incredibly cold this cooler gets when using these new blocks. How you choose to use them is up to you!
Overall rating: 4.425532 / 5 from 47 reviews.
Cryo Blocks offer a powerful cooling solution, reaching temperatures as low as 10°F (-12°C). Customers praise the effectiveness and portability of this non-electric cooler, which can store items below freezing for hours. The synergy with DLTA™ technology enhances the Oyster's capabilities, making it more than just a standard cooler.
Review topics: ["size","performance","packs","cooler","ice","blocks"].
"I bought these to use when I use my cooler as a freezer, but I’m sure that they will work out great"
"Awesome BUT, if you dont have a deep freezer or some kind of seriously cold freezer, this will not freeze these blocks."
"These ice kept frozen food solidly frozen for a trip lasting about 10 hours."
"Best ever made. Please buy more so they have the capital to make a larger taller size"
"THese are amazing. NOw can you make a cooler with these a little larger?"
"One of the two crypto blocks will not freeze completely. Despite sharing my information with support. They can’t find my order to resolve my situation. But I got this email to review the recent purchase of these blocks. Maybe I can get support through this review."
"Worked poorly. Froze Cyro blocks (4) for 48 hrs -1degree start. Held frozen state (to 5 degrees) only 4 hrs. That's poor performance!"
"This is the second set of cryo block I have received and they do not freeze entire in a normal house refrigerator. The blocks were in the freezer for 5 day and never freeze completely. I would not recommend this item."
"Cryo Blocks work great in the Oyster cooler, but just be aware that they do need to be frozen in a deep freezer that is colder than -10 degrees Fahrenheit (-24 degrees Celsius) or they won't freeze solid. Otherwise they are a great product!"
"I have not used the cooler yet. However, I’ve seen multiple users of it on YouTube. I feel like it will be a game changer, compared to my old cooler, which was bigger, bulkier and much heavier. I am looking for ways to save space in my trunk when I go camping, and the oyster is one of the best ways to save space. I bought multiple ice packs. I have six total. Four are the standard packs, and two are the icier packs. I wanted to experiment with the ice air ones to see when they’re most applicable. Thank you oyster for making such a great product. Thanks, Mark."