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Apr 28, 2003 06:55 PM

Tomato sauce in a jar: How long does it last?

  • s

I have a jar of tomato sauce that I bought over a year ago - maybe longer. (unopened) How long does it keep? There's no "best if used by" date or anything like that on the jar.


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  1. If it's unopened, it's good for 2-3 years at least. I speak from vast experience of the "oh that looks good I just know I'll find a use for it sometime" variety. ;->

    4 Replies
    1. re: C. Fox

      How long would you keep after its opened?

      1. re: Shaebones
        Allie D'Augustine

        Until it grows mold?

        Seriously, it completely depends from brand to brand -- I used to buy Classico tomato and basil sauce and it'd grow mold on the top in less than a week. Now, when I use bottled sauce, I get Trader Joe's and it stays good until I use it up. (Three weeks? I don't know, I don't keep track.)


        1. re: Allie D'Augustine

          I would really worry about keeping tomato sauce safely for three weeks, even if you were not my daughter. The government tends to be overcautious and most likely says 2 or 3 days, but I would say a week would be max. And you CAN freeze it in small portions. A ziploc bag dosesn't take up very much freezer space.

          1. re: Marcia

            BTW, things do not have to grow mold or even smell "off" to be bad. If you do not change your ways, I'll miss you a lot.

    2. Just added an open jar of tomato sauce and poured into my soup, noticed mold growing on lid, can I still use it?

      3 Replies
      1. re: Justwondering

        I think you might be fine because the tomato sauce itself is acidic, thus inhibiting bacterial growth. Plus, if your cooking or heating at high temps, you should be ok.

        1. re: monavano

          No, he won't be fine. He poured tomato sauce into soup.

          1. re: sebastos156

            Assuming he/she is still with us since posting this three months ago.

      2. I'm marketing my own italian sauce... once cooked and in the mason/ball jars... does anyone know how long I can keep these jars in the fridge if they are sealed and unopened. And can I take frozen jars out of the freezer and store for however long... if unopened?? My e-mail address for welcome expert advice (haha) is thanks for your advice.