Haldane Extra Large Ice Cube Molds — 4pc Giant Silicone Ice Blocks 6.3 lb Each, Reusable Food-Grade Thickened

Haldane's 4PC Extra Large Ice Cube Molds are thick, food-grade silicone forms that produce four giant 6.3 lb ice blocks for long-lasting cooling and multi-purpose use.

These reusable silicone molds make oversized ice blocks designed to replace multiple small cubes or expensive store-bought ice packs. Built from reinforced, thickened food-grade silicone, each cavity holds a substantial volume so you can chill plunges, coolers, beverages, or food for extended periods without frequent refills.

How much ice does one set produce and why does size matter?

A full 4-piece Haldane set yields four extra-large blocks, each around 6.3 pounds, letting you freeze up to about 25 pounds of ice at once when combining multiple sets. Bigger blocks melt much slower than many small cubes, keeping temperatures lower for longer and reducing freezer-to-use trips.

• Four cavities per set, each holding roughly 6.3 lb of water
• Slow surface-area-to-volume melt rate for extended cooling
• Large single blocks reduce frequency of refills or replacements

What makes these molds durable and easy to use?

Haldane molds are made from thickened, food-safe silicone with reinforced edges so they keep their shape when filled and during handling. The flexible silicone releases solid blocks easily after a short thaw at room temperature, eliminating prying or tapping that can crack cheaper trays.

• Thickened walls and reinforced corners resist collapse when pouring
• Flexible silicone allows simple release after 10–20 minutes at room temp
• Reusable design avoids single-use plastic and brittle alternatives

Where and how can I use these giant ice blocks?

These molds suit multiple situations: cold plunge tubs, large coolers, seafood or beverage displays, camping, and even decorative ice carving. The large blocks maintain lower temperatures in bigger volumes, making them useful for both recreational and practical chilling tasks.

• Cold plunge tubs and portable bathtubs to support long cooling sessions
• Coolers for camping, fishing, tailgates, and seafood transport
• Beverage service or whiskey presentation where slow melt is preferred

How do I prepare, freeze, and store the blocks safely?

Fill each cavity with potable water and level before freezing; depending on your freezer and block size, expect 12–24 hours to solidify. After freezing, briefly let molds sit at room temperature to loosen, then gently invert to release blocks; store them in a clean container or plastic sleeve if you’ll keep them in the freezer beforehand.

• Fill with clean drinking water; freeze 12–24 hours depending on freezer
• Stand 10–20 minutes at room temp for easy release; do not force
• Store blocks in sealed bags or bins to prevent freezer odor transfer

Who is this for? Haldane's extra-large silicone ice molds are aimed at anyone who needs prolonged cooling without constant replenishment: cold-plunge hobbyists, outdoor hosts, anglers, event caterers, and homeowners who prefer reusable, durable silicone tools over disposable ice packs or thin trays.