Innovative Ways to Use a Vacuum Flask


You probably know what a vacuum flask is. Most people know it as a bottle or a jar that can maintain the temperature of the hot and cold drinks – at the same temperature they were in when they were packed for 8 hours or more. These flasks are commonly used when carrying cold water or juice for the day when going to school or work. When going for a picnic, the thermos bottle is used for storing hot tea or coffee as well, especially when there is no facility to make a fresh cup.

But is that all you can do with a vacuum flask? Of course, not. There is so much more that you can do with it. You can even store much more in a vacuum flask, provided it has some liquid content in it. Generally, the sauces have a chance of leaking out when carried in a lunch box, but with a vacuum bottle, that problem is also taken care of and you can get a piping hot meal even when you are out. You can also store soups and take along when going out.

Caution When Using a Vacuum Flask

You can pack hot or cold fluids in a vacuum flask, but for each, some precautions are necessary:

  • Always pack beverages in a clean thermos.
  • Chilling the inside of the thermos bottle before adding chilled drinks is a good idea. Similarly, it should be warmed before adding hot beverages. This can be done by storing ice or hot water for a few minutes prior to the addition of drinks.
  • When packing hot drinks, they will remain safe to drink only if you pack them when they are very hot (74°C and above). For cold drinks, the ideal temperature is 4°C and below. 
  • You must finish the drinks once the vacuum flask has been opened. Any leftovers are best thrown away.
  • Any drink that has not been maintained at the original temperature can be harmful to eat.
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Interesting Menu for Use with a Vacuum Flask

Below are some suggestions for tasty drinks that you can carry to a picnic or an outing with friends and your place of work.  

Cold Drinks Suitable for a Vacuum Flask

  • Cold Water
  • Cold Milk
  • Chilled Lassi
  • Chilled Juice
  • Iced Tea
  • Plain Yoghurt
  • Milk Shakes 
  • Yummy Smoothies

Here are a couple of innovativechilled recipes for you to try:

  • Apple Pie Oatmeal Chilled Overnight– Whisk together some plain yoghurt (3/4th cup), milk (1/4th cup), 1 tsp of maple syrup, ½ tsp of vanilla extract and some cinnamon powder. Stir in a grated apple and ½ a cup of oats, cover and refrigerate. Add it to the vacuum flask after chilling it and enjoy it later.
  • Blueberry and Apple Smoothie – Blend ½ cup of plain yoghurt with a ripe banana, a chopped apple, ½ a cup of blueberries and 60 ml orange juice. Blend till you get a smooth consistency.

Hot Foods Suitable for a Vacuum Flask

  • Hot Tea
  • Hot Coffee
  • Hot Chocolate
  • Hot Soups
  • Stews/curries
  • Hot Oatmeal porridge

Some innovative hot recipes that you can try and storein your vacuum flask are:

  • Spiced Hot Chocolate– Warm 1 litre of milk over medium-low heat. Now, whisk in 60ml of sugar and cocoa powder each and ¼ tsp of cinnamon. Heat until hot but do not boil. Stir with a cinnamon stick dipped in melted dark chocolate. Carry it in your preheated thermos bottle and enjoy it outdoors.
  • Carrot and Tomato Soup– Pressure cook chopped carrots (2), tomatoes (2), onions (1) and garlic (3-4 cloves) with 2 cups of water. Let them cool, then blend till smooth. In a pan, heat some butter, add ½ tsp cumin powder and salt to taste. Stir for a few seconds and add the prepared puree. Let it simmer for 2-3 minutes. Add water or cook some more to get the right consistency. Hot soup is ready to be carried for your picnic.
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There are several such recipes that can be enjoyed anywhere with the help of a thermos bottle. They come in different sizes, so you can choose a personal one to carry just enough food for yourself or carry sufficient amount for a group of friends. Just open up the flask, serve and enjoy the same taste that you would have enjoyed at home several hours ago. 


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