Can you freeze tomato sauce?

In this article, we will answer the question “Can you freeze tomato sauce?”, and how to freeze tomato sauce?

Can you freeze tomato sauce?

Yes, you can freeze tomato sauce. Freezing is a great way to preserve sauces as it extends the shelf-life of tomato sauce to about a year. But it is best consumed within 3-6 months of storage. 

The longer you freeze the tomato sauce, the higher are the chances for freezer burn. Besides, prolonged storage significantly impacts the quality of the tomato sauce.

How to freeze tomato sauce?

First of all, divide the tomato sauce into portions. This way you can thaw just the right amount of tomato sauce at a time. Each portion should not exceed the limit of 1 or ½ cups. You can use freezer bags, air-tight containers, or mason jars for storing your tomato sauce.

Whatever storage medium you choose, make sure the tomato sauce is tightly sealed. If you opt for a glass jar or air-tight container, make sure to leave 1-2 inches of headspace. This is because the liquid expands during freezing. 

The glass may crack or even shatter if there is not sufficient space for the tomato sauce to expand. When using a freezer bag, squeeze out as much air as possible from the bag.

Last but not the least, put a clear label on the storage container. This will allow you to identify the frozen product and keep a track of its shelf-life. 

How to reheat frozen tomato sauce?

The best way to defrost your tomato sauce is to leave it overnight in the fridge. If you failed to plan the night before, you can use some other quick thawing methods for tomato sauce. 

These methods are not the safest but they work when you are pressed for time. You can simply skip the thawing step if you intend to use the tomato sauce in cooking.

Method 1: Fill a bowl with cold water and submerge the tomato sauce container in it. Make sure the container is tightly sealed and there are no holes or tears in the freezer bag. 

Just to be on the safe side, it is best to repackage the frozen tomato sauce bag in another freezer bag before submerging it in water.

Method 2: Take out the frozen tomato sauce onto a freezer-safe plate or bowl and nuke it on the defrost setting or low setting. 

It takes about 4-7 minutes for the tomato sauce to thaw completely depending upon the amount of sauce and the power of the microwave. Keep checking the sauce after regular intervals to prevent burning it.

How to make tomato sauce?


  • 1 medium-sized onion (peeled and quartered)
  • 2 stalks of celery (cleaned, cut into chunks)
  • 2 medium-sized carrots (peeled, cut into chunks)
  • 3 Tbsp olive oil
  • 3 cloves of garlic (finely chopped)
  • 56 oz. crushed tomatoes (four 14oz/400g cans or two 28oz cans)
  • A handful of fresh flatleaf parsley chopped
  • A handful of fresh basil (chopped)
  • Salt and Pepper to taste


  1. Then finely chop the onions, carrots, and celery in a food processor. 
  1. In a large saucepan, add some olive oil. On medium heat, saute the onion, carrot, and celery mixture. Heat until dry completely dry and soft.
  1. Poke a hole in the center of the softened vegetables, add the rest of the olive oil followed by garlic. Heat the garlic until fragrant.
  1. Then add tomatoes and all the herbs followed by seasoning.
  1. Let the tomatoes come to a rolling boil. Then lower the heat and let the tomatoes simmer on low heat for about 30 minutes.
  1. If you like your sauce to have a thinner or runny consistency, blend the tomatoes in a food processor before adding them to the saucepan. If you like it to be thick and chunky, skip this step.

How to tell If tomato sauce is bad?

Check for the following signs to check If your tomato sauce has gone bad or not. If you are unsure about any of the following signs, you should consider discarding the sauce because safety comes first.

  1. If the surface of the tomato sauce looks cloudy or foamy, it is a sure sign of spoilage, throw it away. Green patches over the surface also indicate mold growth.
  1. If the sauce smells foul, discard the sauce.
  1. If an unopened can of tomato sauce shows signs of bulging, toss it in the bin because it is the gas produced by the clostridium bacteria.
  1. If the can is leaking, do not consume it.


In this article, we answered the question “Can you freeze tomato sauce?”, and how to freeze tomato sauce?


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.