Beverage bottle child may drink into the container sealed proposal

News Playback frequency exposure safety issues bottled beverages
As temperatures gradually warming , bottled drinks ushered in the year of the sales season. At the same time , some information about the safety of bottled beverages reports but can often be seen .
Ms. Wang Hefei Parkson supermarket bought in Jasmine Tea Master of bottled beverages. Open only to find that the cap wall covered with black mold substances . After Ms. Wang found a manufacturer, factory explanation is " previously encountered such a problem may be caused by moisture on the supermarket warehouse ."
In recent years , with regard to beverage bottle moldy , breeding eggs , frequent reports of excessive bacteria . These problems involve many well-known brands , showing not the case. The brand is also more for such quality issues attributed to warehousing, transportation and other circulation . Well, we almost daily consumption of bottled drinks, they are not fully sealed bottle in the end it ? Please enter the living laboratory period , the facts to give you the answer.
Sample: 4 bottles of mineral water , label 1,2,3,4 , 1,2 for the same brand of mineral water, which is internally threaded cap double parallel lines, 3,4 for the same brand of mineral water , which internal thread for the screw cap double lines ; gentian violet
Experimental conditions: the fully sealed and then tighten unscrew bottle of mineral water upside down into the gentian violet solution
Experimental Target : gentian violet solution will soak into the inside of the cap
Experimental Procedure
1 The test samples 1,3 unscrew , pour a glass of water , then tighten. Open a bottle of drinking too mimic the situation .
2 gentian violet take about 5 ml was poured into water , the water level height is about 3 cm , can be completely off caps.
3 respectively 1,2 inverted water bottle into the gentian violet solution and let stand for 5 minutes . After removing the bottle with a paper towel and put up dry.
4 Take 3,4 mineral water bottles, repeat step 3.
7 Unscrew guinea pigs 3,4 . Among them, the whole of the 4th sealed bottle caps innermost colored spots appear below the threads 3 , on the outermost whorl coloring water droplets. The 4th bottle mouth with colored spots under the thread , the bottle at no obvious staining . And before the experiment was then tighten the screw to open the 3rd bottle , barrier seals staining slightly above the 4th bottle , the bottle at no obvious staining .
6 Unscrew guinea pigs 1,2 , which is the 2nd bottle sealed inside found no shading . And before the experiment was unscrew and tighten No. 1 bottle , the cap edge coloring inside of the case . Bottles at the bottle and bottle screw were no shading .
5 4 bottles of mineral water to be dried and observed . Bottle of mineral water bottle and cap of about 1 cm were staining .
The 4th bottle caps with colored water droplets inside
Experimental results : closed bottle of mineral water infiltration staining solution is still possible , but it will not penetrate the bottle at .
● Expert Interpretation
Secretary-General of the International Food Packaging Association , professor of environmental experts said threaded portion of beverage bottles only play the role of reinforcement , but not confined, " really play a role in the sealed bottle on a prominent cushion , tightening the cap while pressing close to the bottle, sealing function . "
Introduction, vendors can make through ultrasound and heat shrinkable plastic shrink technology , to enhance or replace the mold bottle seal. But for cost reasons , most companies will not use these technologies , while the domestic beverage bottle hygiene standards at a blank spiral also enable manufacturers failed to give sufficient attention.
Said that as the threaded mouth is not sealed ,security seals in the filling , warehousing, transportation and other aspects of secondary contamination may exist , it is recommended to drink bottled beverages , do not directly touch the bottle mouth . " The use of straw may still exist secondary pollution , advised consumers to pour the beverage in the container and then drink ."