Tovolo Large 2" King Cube Ice Tray (Stratus Blue), Silicone Big Square Ice Cube Mold for Whiskey & Cocktails
Yes — a single 2-inch cube is the right ice for spirit-forward cocktails. A bigger cube has a lower surface-area-to-volume ratio, so it chills your drink just as cold but melts (and dilutes) more slowly than a glass full of small cubes. The Tovolo King Cube makes six true 2" cubes in food-grade, BPA-free silicone that releases cleanly. Honest caveat: big ice does not stop dilution, it slows the rate — the cube still melts as you sip, and this tray makes cloudy ice, not the crystal-clear ice of a directional-freeze maker.
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What have experts found about the Tovolo Large 2" King Cube Ice Tray?
Every claim below is tied to a source you can open, quoted verbatim — how we research picks.
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“in terms of melting and cooling, the difference between a ball or a diamond or a cube isn't anything. The number that matters is the ratio of surface area to volume—the lower the better.”
Melting and dilution are driven by surface-area-to-volume ratio, not cube shape per se — so a big cube dilutes slowest.
SevenFifty Daily (quoting Francis Schott) · 2021 ↗ -
“There is no chilling without dilution, and there is no dilution without chilling.”
You cannot chill a drink with ice without also diluting it — big ice manages the rate, it does not eliminate dilution.
SevenFifty Daily (quoting Dave Arnold, Liquid Intelligence) · 2021 ↗ -
“The consumption of contaminated ice can be a direct or indirect route for the transmission of pathogenic bacteria to humans. This can lead to outbreaks of gastrointestinal disease”
Ice is a food and can carry pathogens if handled or frozen dirty — keep molds and water clean.
State of the Art in Hygienic Quality of Food Ice Worldwide: A Ten-Year Review (Microorganisms, 2024, via PMC) · 2024 ↗
How does the Tovolo Large 2" King Cube Ice Tray compare?
| Tovolo 2" King Cube (big ice) | Standard small ice cubes | Crushed/pebble ice | |
|---|---|---|---|
| Surface area to volume | Lowest | Higher | Highest |
| Melt / dilution rate | Slowest | Moderate | Fastest |
| Best drink type | Spirit-forward on the rocks | Highballs, everyday | Juleps, tiki, swizzles |
| Chilling speed | Slow, sustained | Quick | Near-instant |
| Presentation in glass | Single showpiece cube | Fills the glass | Frosty, slushy |
Buy it if
- Whiskey, Negroni, and Old Fashioned drinkers who sip slowly and want minimal dilution
- Home bartenders who want one showpiece cube per rocks glass
- Anyone wanting a cheap, durable, freezer-friendly upgrade over standard ice trays
- People who prize easy cube release from flexible food-grade silicone
Skip it if
- Anyone who specifically wants crystal-clear ice — this tray freezes cloudy; get a directional-freeze clear-ice maker
- Sphere fans — this makes cubes only, not spheres
- High-volume entertainers who need lots of ice fast (only six cubes per tray, per freeze cycle)
Is the Tovolo Large 2" King Cube Ice Tray worth it?
The Tovolo 2" King Cube is the no-fuss flagship for big cocktail ice: real 2-inch cubes, food-grade BPA-free silicone that releases cleanly, and the lowest surface-area-to-volume ratio you'll get from a home tray — which is what genuinely slows melt and dilution on spirit-forward drinks. It won't give you clear ice or spheres, and big ice slows dilution rather than stopping it, but for the price it's the easiest upgrade a home bartender can make.
Check price on Amazon Live price & reviews on AmazonQuestions, answered
- Why big ice — does ice size actually matter?
- Yes. A 2-inch cube has a much lower surface-area-to-volume ratio than several small cubes, and surface area is what drives heat transfer and melting. The big cube still chills your drink to cold, but it melts slower, so the drink dilutes more slowly and holds the flavor you built for longer. This matters most for spirit-forward drinks (Old Fashioned, Negroni) where you don't want the base spirit watered down. Source SevenFifty Daily — Science of Ice ↗Difford's Guide — Ice and cocktails ↗
- Big cube vs. small cubes vs. crushed ice — when do I use each?
- One big cube = slowest melt, slowest dilution, best for stirred/spirit-forward drinks sipped slowly on the rocks. A glass of standard small cubes chills fast and is fine for highballs and everyday pours. Crushed/pebble ice has the most surface area, melts fastest, and is meant to dilute and aerate — perfect for juleps, swizzles, and tiki drinks, wrong for a neat whiskey. Match the ice to the drink, not the other way around. Source Difford's Guide — Ice and cocktails ↗SevenFifty Daily — Science of Ice ↗
- Will a big cube keep my drink from getting watery?
- No — and any brand claiming that is overselling. As Dave Arnold puts it, "There is no chilling without dilution." The cube is still melting the whole time you sip; a 2-inch cube just slows the rate versus small ice. It buys you time, it doesn't stop the clock. If you nurse a drink for an hour, it will still dilute. Source SevenFifty Daily — Science of Ice ↗
- Is silicone ice safe, and does the ice pick up flavors?
- Use a food-grade, BPA-free silicone tray (the King Cube is) and keep it clean — ice counts as a food and can carry bacteria if the mold or water is dirty. Store the tray covered or in a clean freezer, since ice readily absorbs odors; Tovolo recommends a periodic water-and-vinegar rinse, especially with hard water. The material itself doesn't leach flavor into the ice when it's food-grade silicone. Source PMC — Hygienic Quality of Food Ice review ↗Tovolo — King Cube product page ↗