The best ice for whiskey starts with a mold that suits your glass and the number of drinks you make. For an easy everyday choice, the OXO Covered Silicone Ice Cube Tray, Large Cube makes six manageable cubes. Choose Tovolo Sphere Ice Molds for two large round pieces, or True Cubes when clear presentation matters enough to justify a bulkier tray and more planning.
These picks compare documented size, capacity, construction and care requirements. A large piece of ice can be convenient for sipping whiskey or serving an Old Fashioned, but it still melts and adds water. None of these molds guarantees a particular drink temperature, melt time or flavor.
Best ice molds for whiskey at a glance
| Pick | Best use | Output per batch | Main tradeoff |
|---|---|---|---|
| OXO Large Cube, 11154200 | Everyday cubes and several drinks | Six 1¾-inch cubes | Conventional tray; no clear-ice guarantee |
| Tovolo Sphere Molds, 80-9697 | Round ice for wide rocks glasses | Two large spheres | Only two drinks per batch if using one sphere each |
| True Cubes original tray | Clear square ice for presentation | Four 2-inch cubes | 7 × 7 × 6-inch footprint; hand washing |
1. OXO Covered Silicone Ice Cube Tray: best everyday choice
The Large Cube version, SKU 11154200, is the most straightforward starting point here. Its six 1¾-inch cavities offer more pieces per batch than either alternative. A supporting frame helps carry the flexible insert, while the cover allows stacking and helps shield the ice from freezer odors. OXO lists the tray as dishwasher safe.
Why choose it: You want a covered tray for a few evening drinks and would rather refill one tray than assemble separate sphere molds. The listed overall dimensions are 5.125 × 7.25 × 2.5 inches, useful when checking freezer clearance.
Know the limit: This is the Large Cube model, not OXO’s smaller Cocktail Cube tray. It is not an insulated clear-ice system. Although the manufacturer uses “won’t dilute” wording, ice does melt; buy this for its format and handling, not a promise of zero dilution. See OXO’s exact model specifications.
OXO Good Grips Covered Ice Cube Tray, Large Cube, Dark Blue, One Tray
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2. Tovolo Sphere Ice Molds: best for a round presentation
Tovolo’s 80-9697 set contains two separate molds with silicone caps. The stackable design is useful when a wide tray is awkward to fit. Each mold has a marked fill line; the cap itself instructs the user to run it under warm water for 30 seconds before opening. Follow those markings rather than filling beyond the line.
Why choose it: You prefer a single round piece in a wide rocks glass and usually prepare one or two drinks. Tovolo’s product page permits dishwasher cleaning or washing with soap and water.
Know the limit: This is the standard Sphere Ice Molds set, not Tovolo’s separately sold Sphere Clear Ice Mold. Round does not mean transparent: the manufacturer’s own product photograph shows a cloudy center. Check the mold and the narrowest inside width of your glass before buying, especially with tapered tumblers. The set offers only two spheres per freeze, so parties require extra batches. See Tovolo’s exact two-mold set.
3. True Cubes: best for clear square ice
The original True Cubes tray produces four 2 × 2 × 2-inch cubes in an insulated container. Its lower reservoir supports directional freezing; the cloudy ice left below the usable tray is separate from the four presentation cubes. Choose it for the clear-ice process rather than expecting ordinary silicone molds to provide the same result.
Why choose it: Clear ice is part of the presentation you want, and you can reserve a level 7 × 7-inch area with 6 inches of height. The maker’s detailed instructions recommend an 18–20-hour freeze, with the lower section still slushy for easier separation. That is a planning guide, not a guarantee for every freezer.
Know the limit: The system is bulky and needs hand washing. The maker says not to put any part in a dishwasher or fully submerge the insulating box. If overfrozen, let it loosen and follow the release instructions; do not pry with a knife or hit the tray. The product page and manufacturer’s use and cleaning instructions explain the system.
How to choose ice for your whiskey
Start with the glass. Measure the usable inside width, including any narrower section below the rim. A cube’s stated side length is not a promise that it will fit every round or tapered glass. Leave room to lower the ice gently and to drink comfortably. Never force a frozen piece into glassware.
Choose shape and clarity separately. Squares and spheres are presentation choices. The OXO tray and standard Tovolo molds shape water; True Cubes adds an insulated freezing process. A clear cube is not evidence that unsafe water has become safe. Use drinking water and clean food-contact equipment.
Count finished pieces. Six OXO cubes, two Tovolo spheres and four True Cubes cubes represent very different preparation needs. For guests, make batches ahead and keep finished ice in a clean covered freezer container. A countertop bullet-ice machine addresses a different need: frequent small ice production rather than these large presentation pieces.
Match the drink to your preference. You do not need special ice to enjoy whiskey. If you like how your existing ice changes the drink, there may be no reason to replace it. If you want cold whiskey with precisely controlled added water, consider chilling the glass or drink separately and adding measured water instead of expecting ice to stop melting.
Which one should you buy?
Choose OXO for a practical covered six-cube tray, Tovolo for two round servings, and True Cubes for an intentional clear-ice routine. Check glass fit and freezer space first; those two measurements matter more than a claim that one shape makes every whiskey taste better.
Frequently asked questions
What is the best ice for whiskey on the rocks?
A clean piece that fits your glass is the best starting point. OXO’s six-cube tray suits everyday serving, Tovolo offers a round presentation, and True Cubes suits people who want clear square ice. The right choice depends on your glass, batch size and preferred amount of dilution.
Do large cubes or ice spheres stop whiskey becoming diluted?
No. Any melting ice adds water. Shape alone cannot guarantee a melt time because the amount of ice, starting temperatures, room conditions and stirring also matter. Choose large ice for the serving format you enjoy, not a zero-dilution promise.
Will a normal sphere mold make completely clear ice?
Do not assume it will. The standard Tovolo Sphere Ice Molds shape the ice but are different from the brand’s clear-ice system. If clarity is your priority, the original True Cubes tray is the dedicated option in this shortlist.
Can these whiskey ice molds go in the dishwasher?
OXO lists the Large Cube tray as dishwasher safe, and Tovolo permits dishwasher cleaning for its 80-9697 set. True Cubes says to hand wash all parts and avoid fully submerging the insulating box. Follow the instructions supplied with your exact product.
How far ahead should I make clear ice with True Cubes?
The maker’s detailed instructions recommend an 18–20-hour freeze for easier removal while the lower reservoir remains slushy. Freezer conditions can change the result, so make a trial batch before hosting and leave time to loosen the mold if it freezes solid.
