Is bottled water in a car exposed to the sun still drinkable? Here are the test results!
2024-08-15
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This article is transferred from [Hangzhou Release];
In order to replenish water in time in summer, many car owners will prepare some bottled drinking water in the car.Will the water go bad after being in the car for such a long time? Will the plasticizer migrate due to exposure to the sun? Can I still drink the half-finished bottle of water?Let’s find out together!
Choose the common ones in supermarkets
10 brands of bottled drinking water were used as experimental subjects
Unopened and half-drunk bottles of water
Conduct inspection↓↓
Keep in the car for a long time
Can bottled water go bad?
Place unopened bottles of water in the trunk and on the front seat of the car. The main difference is thatThe former is in a high temperature and dark environment, while the latter is in a high temperature and direct sunlight environment.。
After 10 consecutive days of sampling and testing, the results showed that the quality of drinking water in various mines wasNo plasticizer detected, the microbiological results also meet the national food safety standard limits.
Half a bottle of water left in the car
Can I still drink it?
Each of the seven healthy experimental participants chose a bottle of drinking water, drank about half of it in several times, and then put it in the front drain gutter of the car. Samples were taken at intervals of 12 hours, 24 hours, and 48 hours and sent to the laboratory for testing and comparison.
From the experimental results,Pseudomonas aeruginosa and nitrite were not detected, plasticizers (DEHP, DBP), coliform bacteriaAll were less than the limit of quantification.
The only thing detected isTotal colony count, this is due toThere are a large number of microorganisms in the human oral cavity.After 24 hours of storage, the total number of colonies in most samples showed a decreasing trend or even no detection. This may be because the nutrients in drinking water are not enough to sustain the growth of microorganisms, and the continuous high temperature environment makes it difficult for microorganisms in bottled water to survive.
Experiments show that
Bottled water in the car during summer
Generally no deterioration
But I still recommend everyone
Don't drink the half-empty water in your car
It is best to drink up newly opened bottled water at once
Avoid waste
Source: Nanjing Market Supervision and Administration Bureau, China Quality News, Nanjing Market Supervision Bureau, Hangzhou Consumer Protection Committee
