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Can be, if the vacuum is good. In glass thermos if the glass is not broken it is okay. In steel thermos if the vacuum has not been lost it will be. You can test a steel thermos by simply filling it with boiling water, if the outside of the thermos becomes hot the vacuum has been lost and one will need a new thermos.
What else can I help you with?
What is the plural of thermos?
Thermoses is the plural of thermos.
Why some thermos bottles are good for 24 hours but others are for 48 hours?
A thermos is only good because of the material it is made with. A thicker material will keep whatever is inside cold or warm longer.
Where does the word thermos come from?
Thermos is from the Greek word 'thermos' meaning 'heat'.
Can you keep a thermos in the fridge?
I wouldn't see any reason why you couldn't keep a thermos in the refrigerator. Pre-chilling containers for cold beverages is a good idea anyway. ====== ======
Is a thermos flask also good for keeping water cold for several hours?
Yes. The thermos flask can reduce the amount of heat travelling from the surroundings to the cold water
How much does a thermos cost?
The cost of a thermos can vary greatly depending on the brand, size, and quality. On average, a basic thermos can cost around $10-$20, while higher-end models with advanced features can cost upwards of $50 or more.
What are some good insulators for a thermos?
spongespaper towelglassduck tapesawdustmetals...these are excellent insulators.....
What is a heat-resitant container?
it is a thermos. It stores heat and Coldness. That is if you get a good one.
What is a good slogan for a thermos called heat saver?
Save the heat in heat saver the only thermos that saves all the heat put into it Save heat with heat saver
What is the possessive form of thermos?
The possessive form for the noun thermos is thermos's.Example: I can't find the thermos's cap.
What is inside a thermos?
inside a thermos is flask steel materials, it keeps the thermos for about 1 - 2 days.
How do you make a thermos without a vacuum that prevents heat?
Insulate the thermos with a very low heat-conducting material. Low density objects such as ceramic or foam are typically good insulators.
