話題沸騰中の What Temperature Does Bourbon Freezeについて、詳しいまとめを分かりやすく掲載しています。

Bourbon freezes at roughly -10 degrees Fahrenheit, which is a whopping 42 degrees colder than your freezer’s usual 0°F. Why? It’s all about the alcohol content, or proof. Most bourbon is 80 to 100 proof (40-50% alcohol), and alcohol has a much lower freezing point than water.

Think of it this way: water freezes at 32°F, but pure ethanol freezes at -173°F. Bourbon sits in the happy middle, thanks to its water-and-whiskey blend. The higher the proof, the lower the freezing temperature. So that 100-proof, cask-strength bottle? It’ll resist freezing longer than a standard 80-proof sipper.

Fun fact: Your home freezer can’t legally get that cold (most max out at -10°F, but rarely hit it consistently). So your bourbon is safe in the freezer door—for now.

What Actually Happens When Bourbon Freezes?

First, it doesn’t turn into a solid ice cube like water. It gets slushy. The water content starts freezing first, creating icy crystals while the alcohol stays liquid. This is called “fractional crystallization,” and it’s why a frozen bourbon slushie is totally a thing you can make on purpose.

Imagine pouring a perfectly chilled, slightly syrupy bourbon—that’s the texture. It’s deliciously dangerous because the cold numbs the alcohol burn. Pro tip: If you leave a bottle in a car in North Dakota in January, you might come back to a slushy, separated mess. But hey, now you know how to fix it: just shake and enjoy your ice-cream-whiskey hybrid.

Oh, and don’t panic if your bottle gets cloudy—that’s just the fatty acids and oils congealing. It’s called “louching,” and it’s totally drinkable. Your bourbon isn’t ruined; it’s just having a frosty moment.