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Canned Tomatoes Have a Metallic Taste

I make salsa using store-bought tomatoes in a can. The salsa has a "can" taste that I don't like. Does anyone know of a trick to cut that taste out? Thanks.

By Sarah B. from Cleveland, TN


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September 17, 20090 found this helpful

I don't know a trick for that. Why not just use the equivalent amount of fresh tomatoes instead? Most likely will cost less money and no preservatives ;-)

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September 18, 20090 found this helpful

That is the acid chemical change with the tin/aluminum. Not much you can do, maybe add some lemon or lime juice? I process my own and occ have to buy from the store. That is the difference. I use jars.

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September 19, 20090 found this helpful

My experience with canned tomatoes is they should be used soon after purchase while they still taste good, and the metallic taste becomes more pronounced the longer they are stored. I personally wouldn't use them, as we are already getting enough harmful metals in our bodies from other sources. Especially in your good salsa, which is so labor intensive!

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September 21, 20090 found this helpful

Try a pinch of sugar to regulate the amount of acidity in the tomatoes and mask the "canned" taste. I've always used canned tomatoes in my recipes since its not always convenient to have fresh tomatoes on hand, especially if you don't use them up quickly.

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April 10, 20100 found this helpful

Be careful of any cans that have that new plastic lining. some times it is clear or white. the danger here is bisphenol-A. there is a lot on the net about the danger. Your grocer should know what cans have it. Hunts, all kinds veggie cans, paste tomatoes. There's more, check it out folks. Grow enough to can your own tomatoes. Check out the book Seeds of Destruction.

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April 10, 20100 found this helpful

Oh yes to neutralize the metallic, a teaspoon of baking soda, yes!! does the job every time. In the morning I use one teaspoon of soda in cup of tepid water mix and drink. this helps to alkalize your body, if your body's ph is off this opens you up to illness.

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August 29, 20140 found this helpful

The last thing you want to add to a tomato sauce that has that tinny/metallic taste is another acid! NEVER add vinegar, lemon, or lime juice. The metallic taste is caused by a chemical reaction between the acidity of the tomatoes and the tin cans they were in.

It is the acid of the tomatoes itself that carries the metallic taste, so to neutralize this, you need to think kitchen chemistry: You need a base. You need a bit of baking soda. First, turn down the heat of the burner on your cooking sauce or you might end up with a volcano from the chemical reaction. Then, add a teaspoon of baking soda... stir well... then wait a second or two. Then taste. You will be shocked as to how much this masks the metallic taste.


Also, a teaspoon or two of sugar will also help neutralize the acidity of the tomatoes. It won't rid the sauce of it 100%, but it will certainly make it far more edible.

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September 29, 20140 found this helpful

Olivia: Just for the record- NOTHING you eat changes the pH of your body. Drinking baking soda does nothing. Your body's pH is finely tuned and regulates with no help from you. Eating healthy does matter- but if you did change your pH- you would be dead...rather quickly.

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