In the cold winter, a cup of warm orange juice or coffee will bring us a little warmth, and in this season, the vacuum flask is very popular. So do you know how long the beverages in the thermos can last and will they deteriorate? With this question in mind, experts from relevant departments have conducted experiments on the vacuum flask to reveal the secret of the vacuum flask for you.
Experts choose 4 kinds of drinks: baby milk powder, coffee, orange juice and boiled water. At the same time, he chose a relatively expensive brand thermos cup, and put the boiled boiled water and orange juice into the thermos cup separately; put the baby milk powder brewed with boiling water and The coffee was put into the thermos cup separately, and the experimental results showed that no E. coli/coliforms were detected in the four drinks just filled or the beverages placed in the thermos cup for 6 hours. Experts pointed out that since heating and boiling is itself a sterilization process, and the thermos cup has better sealing and heat preservation effects, the four beverages are kept in a high-temperature sealed state for a long time. Under these conditions, E. coli/coliforms cannot grow and survive. With the triple protection of boiling, heat preservation, and sealing, the water in the thermos can still be drinkable even if it is left for 6 hours. However, it needs to be reminded that the first container that wants to keep the drink from being contaminated must be sterilized and airtight. Therefore, choosing a good quality vacuum flask is the key.