Will Milk Spoil If Left in the Trunk for a Day in Summer?

[DiGeorge]

Milk left in the trunk for a day in summer will spoil. Items Not Suitable for Storage in Cars: Sealed bottle products: High temperatures can cause the gas inside the bottle to expand without being able to escape, making explosions highly likely. Especially for perfume bottles made of crystal or glass, if exposed to direct sunlight, they can create a magnifying glass-like focusing effect, which can be very dangerous if focused on flammable items. Lighters: Ordinary lighters mainly contain liquid butane, which is flammable and explosive. High concentrations of butane can explode at just 20°C under normal conditions. If the ambient temperature exceeds 55°C, the lighter will expand. Fire departments have conducted experiments showing that a lighter left in a car under direct sunlight can explode in just 12 minutes, posing a significant hazard. Power Banks: Battery products like power banks, if left in a high-temperature car for an extended period, can swell and are highly prone to explosions. This is especially true for low-quality power banks that use substandard lithium batteries or modified batteries, which have even poorer stability.