The Ukulork silicone mold is a specialized tool designed to create large cylindrical ice specifically for 30oz and 40oz insulated tumblers. The use of platinum-cured silicone provides superior elasticity, which is essential for breaking the suction that can occur between the ice and the mold walls during release. These large cylinders are engineered to minimize melting rates, helping to keep drinks cold for up to 18 hours in high-quality tumblers.
Specifications show that the system includes a polypropylene bin and a friction-fit lid. Because water expands by about 9% when freezing, it is important to avoid overfilling the molds, as the expanding ice can pop the lid off and expose the ice to freezer odors. While the silicone is BPA-free and high-quality, the outer bin should be handled with care in very crowded freezers to avoid impact damage when the plastic is cold.
The extraction of these large cylinders can require more grip strength than smaller cubes; some users may find it helpful to use a small amount of warm water on the outside of the mold to assist with release. This product is a practical choice for those who want to maximize the performance of their travel cups without the rapid dilution caused by standard ice. The diameter is verified to fit popular brands like Stanley, Yeti, and Simple Modern.
For those looking for high-volume nugget ice to complement their tumbler drinks, the Wibimen pebble ice trays offer a different chilling experience.
Check out our full collection of beverage-focused storage in the ice cube trays section.
