can i put hot soup in mason jar for travel

i ran out of glass containers (people haven't returned them) and i want to give my boyfriend hot soup for work. Is it safe to put it in a mason jar and put the lid on while hot? And how long might the soup stay hot in it?
Best Answer
I have had mason jars break when filling with hot items. It is best to warm the jar first, just by running hot water into it. A someone else pointed out, a mason jar is, of course, not insulated. You mention this is to take to work, I assume for lunch or dinner. I also want to point out that you need to consider food safety, as your soup will soon be in the "danger zone." You should read this. It is much safer to chill the soup to refrigeration temperature, pack it in a cooler, or refrigerate at work, then reheat at meal time.
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Quick Answer about "can i put hot soup in mason jar for travel"
For the first part, about pouring hot soup in mason jars, it should be safe, but there's always a risk of shattering if the liquid is too hot. There are many somewhat related topics regarding putting hot liquid in mason jars.How long does soup stay good in a mason jar?
A general rule of thumb is that soup can be stored in the refrigerator for about three days, but you should always taste your dish before deciding to reheat. A clear, vegetable-based soup with some acidity, such as tomatoes, may last longer. Chicken soup usually lasts three to five days.Can hot food go in mason jars?
If you were to put piping hot foods or liquids into a room-temperature mason jar, you could risk thermal shock to the glass, and the container would shatter due to the extreme temperature differences. Newell Brands' team doesn't endorse using Ball or Kerr canning jars in ovens or for baking projects.Can you put hot soup in a mason jar?
Allow the Soup, Stew, or Main Dish to CoolAvoid adding steaming hot liquid to the mason jar. Instead, allow the soup or stew to cool slightly before adding to the jar.5 Easy Instant Soup Cups
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Answer 2
For the first part, about pouring hot soup in mason jars, it should be safe, but there's always a risk of shattering if the liquid is too hot.
There are many somewhat related topics regarding putting hot liquid in mason jars.
Is it safe to put fresh hot soup in a glass mason jar?
https://www.quora.com/Will-a-mason-jar-shatter-if-I-pour-hot-water-in-it ...
For the second part, It will not keep the soup hot/warm for a long time, it is not a "thermos" container.
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