Can you boil ascorbic acid

In this brief guide, we will address the query, “Can you boil ascorbic acid?” We will also discuss what ascorbic acid is and how it is related to vitamin C,  its nutritional health benefits and recommended daily intake and how it is affected by boiling, and much more so read carefully till the end.

Can you boil ascorbic acid?

Yes, you can boil ascorbic acid, but note that boiling will reduce its concentration by up to 50% or more compared to other cooking methods. 

It is known that ascorbic acid is water-soluble and sensitive to heat, so it is easily degraded when boiled for a long period. 

What is ascorbic acid and how is it related to vitamin C?

Ascorbic acid is considered to be the purest form of vitamin C. 

This organic compound is a vital nutrient that must be obtained through an alimentary diet or supplements to prevent or treat low levels of vitamin C in people who do not get enough of the vitamin from their diets.  because it cannot be synthesised by the body.

What are the nutritional benefits of ascorbic acid?

Ascorbic acid or vitamin C is naturally found in citrus fruits, berries, and fresh vegetables such as fresh pepper, broccoli, lettuce, and spinach. The low levels of this vitamin in your body will cause a medical condition known as scurvy.

Vitamin C is a water-soluble vitamin that is needed in small amounts by our bodies to maintain normal physiological functions and collagen production which is essential to healthy cartilage and bone.

However, the insufficient intake of vitamins will lead to gums bleeding, which is a symptom of scurvy exhaustion and leg pain.

The vitamin C content of foods can be reduced by exposure to extreme cold, heat, light, lengthy storage, and water. 

Boiling ascorbic acid will destroy a great amount of it compared to other cooking methods such as stir-frying, microwaving, and steaming.

What is the recommended daily amount of ascorbic acid?

The minimum daily requirement of vitamin C recommended for adults is 90 milligrams if nonsmokers, however, if you are a smoker you need 35 milligrams more than the recommended value.

Always keep in mind that if you boil your vegetables or if you don’t routinely consume fresh fruits and vegetables rich in ascorbic acid, you are at risk of an adequate intake of vitamin C.

 Therefore you should consult with your health-care provider to recommend taking vitamin C supplements.

How is ascorbic acid affected by boiling?

Boiling of fresh vegetables from 5 to 20 minutes will reduce the ascorbic acid level by about 25 percent through leaching out into the water. It’s just in the water rather than the vegetable. 

If you consume the liquid you cooked in, you’ll reclaim some of the “lost” vitamins.

and rapid degradation due to its nature as a water-soluble vitamin. 

Therefore boiling will alter the vegetable’s nutritional value and accurate estimated intake of vitamin c needed for a healthy diet.

For more detailed guidance, please click the link here

How can you preserve ascorbic acid lost through boiling?

As we have seen, boiling vegetables rich in ascorbic acid will lead to depriving our bodies of this essential element found in a healthy diet that is unstable in heat.

Therefore to maintain adequate levels of ascorbic acid, this water-soluble vitamin certain steps should be taken to minimise the vitamins that are lost through boiling as follows:

  • Avoid soaking fresh vegetables in water for too long before boiling them
  • Try as much as possible to boil your vegetables in their whole form
  • Boil your ascorbic acid-rich vegetable in a small amount of water and don’t boil them for too long
  • Try to serve your boiled vegetables immediately after removing them from the boiling water
  • Try using the remaining water after boiling vegetables to prepare soups because ascorbic acid will still be present in the water 


In this brief guide, we have addressed the query, “Can you boil ascorbic acid?” We have also discussed what is ascorbic acid and how it is related to vitamin C,  its nutritional health benefits and recommended daily intake and how it is affected by boiling

Hope you found this blog useful. If you have any questions, please let us know.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.