Will Apples Freeze and Spoil If Left in a Car?

Leaving apples in a vehicle during cold weather poses a risk of freeze damage, particularly when ambient temperatures drop below 28°F (–2°C). Apples have a relatively high water content—approximately 85%—and their cellular structure is vulnerable to ice crystal formation when frozen and subsequently thawed. If exposed to subfreezing temperatures for an extended period, the fruit’s flesh may become mealy, mushy, or waterlogged upon thawing due to ruptured cell walls.

Freeze injury typically begins at the apple’s surface and progresses inward. The severity depends on both temperature and duration of exposure: brief exposure to just-below-freezing conditions may cause minimal harm, whereas sustained temperatures below 24°F (–4°C) often result in irreversible tissue damage. Varieties with higher sugar content—such as Fuji or Honeycrisp—may exhibit slightly greater freeze tolerance due to natural cryoprotective effects of solutes, but they remain susceptible under prolonged cold stress.

It’s important to note that freezing does not render apples unsafe to eat; however, texture and flavor quality deteriorate significantly. For optimal storage, apples should be kept at 30–32°F (–1 to 0°C) with 90–95% relative humidity—conditions best achieved in a refrigerator crisper drawer, not an unregulated vehicle interior. Drivers and commuters are advised to avoid storing fresh produce in cars overnight during winter months, especially in regions prone to subfreezing temperatures.