Ethanol does freeze, but only at extremely low temperatures. Pure ethanol (100% alcohol) freezes at -114°C (-173°F), far colder than any household freezer can reach. A standard home freezer runs at about 0°F (-18°C), which means pure ethanol will stay liquid in your kitchen indefinitely.
Why Ethanol Has Such a Low Freezing Point
Ethanol molecules form hydrogen bonds with each other, similar to water. But ethanol’s molecular structure makes it harder for those molecules to lock into an organized crystal pattern. Water molecules are small and symmetrical, so they snap into a rigid ice lattice relatively easily at 0°C. Ethanol molecules are bulkier and less symmetrical, so they need to lose far more energy before they slow down enough to crystallize. That’s why you need to cool ethanol all the way to -114°C before it solidifies.
Interestingly, ethanol doesn’t always freeze into a simple crystal. Depending on how quickly it’s cooled, it can form a standard crystalline solid, a “plastic crystal” with molecules that still rotate in place, or even a glass-like solid where molecules are frozen in a disordered arrangement. This only matters in laboratory settings, but it highlights just how reluctant ethanol is to settle into a solid state.
How Alcohol Content Changes the Freezing Point
Most people asking this question are really wondering about alcoholic beverages, not lab-grade ethanol. The answer depends entirely on the alcohol-by-volume (ABV) percentage, because the water in the drink freezes at a much higher temperature than the alcohol does. The more water in the mix, the closer the freezing point sits to 0°C.
Here’s how different ethanol concentrations behave:
- 10% ABV (like wine or strong beer): freezes at about -4°C (25°F)
- 20% ABV (like fortified wine): freezes at about -9°C (15°F)
- 30% ABV (like some liqueurs): freezes at about -15°C (5°F)
- 40% ABV (like vodka or whiskey): freezes at about -23°C (-10°F)
- 60% ABV (like high-proof rum): freezes at about -37°C (-35°F)
Your home freezer sits at roughly -18°C (0°F). That means beer, wine, and most liqueurs will freeze solid in a home freezer. Spirits at 40% ABV and above generally won’t, since their freezing point is below what the freezer can reach.
What Happens to Beer and Wine in the Freezer
Beer (typically 4-8% ABV) and wine (typically 12-15% ABV) are mostly water. Their freezing points hover between -2°C and -9°C, well within your freezer’s range. If you forget a bottle of wine or a can of beer in the freezer, the water in it will begin to crystallize within a few hours.
This creates a real problem: water expands when it freezes. As ice crystals form inside a sealed bottle or can, the pressure builds until the container cracks, shatters, or pops open. Glass bottles are especially dangerous because they can explode, leaving a mess of frozen wine shards and broken glass. Cans tend to split at the seams. If you’re chilling beer or wine quickly in the freezer, set a timer for 30 to 45 minutes and take it out before it starts to freeze.
Why Vodka Stays Liquid in the Freezer
Vodka, gin, whiskey, and tequila at 40% ABV freeze at around -23°C to -27°C (-10°F to -17°F). Since your freezer only gets to about -18°C, these spirits stay liquid. That’s why many people store vodka in the freezer on purpose. It comes out thick, slightly syrupy, and very cold, which can mellow the burn and make it smoother to drink straight.
There’s an important caveat with lower-proof spirits. A 60-proof (30% ABV) flavored vodka or cream liqueur has a freezing point of around -15°C (5°F), which is warmer than your freezer’s temperature. These bottles can partially or fully freeze. If you’re unsure about a bottle, check the proof on the label. Anything below 50 proof (25% ABV) will likely freeze in a standard home freezer.
Why Ethanol Is Used as a Coolant
That remarkably low freezing point makes ethanol useful well beyond the bar. In laboratories, researchers mix ethanol with dry ice to create cooling baths that can reach temperatures far below what ice water can achieve. These baths keep chemical reactions at precisely controlled sub-zero temperatures without the ethanol itself turning solid.
Ethanol also shows up in industrial cooling systems as a refrigerant. It’s non-toxic, thermally stable, and stays liquid across a wide temperature range, making it a safer alternative to ammonia-based systems that can produce toxic fumes. Some cooling systems using ethanol can bring temperatures down to -15°C, useful for food refrigeration and industrial processes where conventional coolants fall short.
Ethanol-water mixtures also serve as antifreeze in some applications for the same reason they resist freezing in your freezer. A 40% ethanol solution won’t freeze until -23°C, protecting pipes and equipment in cold environments without the toxicity concerns of traditional antifreeze chemicals.