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Do you blow on your containers before closing them?

Puffin3 Apr 27, 2012 06:40 AM

Many moons ago I watched some 'expert' on TV, demonstrate how they blow air from their lungs into/onto the contents of a jar they had opened and were then quickly closing the lid on to but back in the fridge. The reason they said was if you do that you are briefly blowing away the oxygen in the jar and replacing it with carbon dioxide. This would then slow down the rate of spoilage. Does anyone do this? I admit I did do it for a week of so but it then occurred that maybe the carbon dioxide coming out of my lungs might contain some viruses etc. Is this so?

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  1. b
    beevod RE: Puffin3 Apr 27, 2012 07:45 AM

    I use a bicycle pump. Far more efficient.

    1 Reply
    1. re: beevod
      FarFar RE: beevod Apr 27, 2012 12:01 PM

      How do you get carbon dioxide from a bicycle pump? Doesn't that just replace the oxygen with new oxygen?

    2. s
      sparrowgrass RE: Puffin3 Apr 27, 2012 12:05 PM

      Goofy. There is plenty of oxygen left in the air that comes out of your lungs AND you take the chance of filling your jar with bacteria/viruses.

      1 Reply
      1. re: sparrowgrass
        MrsJonesey RE: sparrowgrass Apr 27, 2012 12:34 PM

        Yes. I would not want to eat something that someone else had blown on.

      2. j
        jaykayen RE: Puffin3 Apr 27, 2012 12:44 PM

        Aspirated air doesn't contain much more carbon dioxide than ambient air.

        1. babette feasts RE: Puffin3 Apr 27, 2012 07:50 PM

          No. Sometimes I suck the air out of a ziploc, but that's different.

          1. chicgail RE: Puffin3 Apr 28, 2012 04:49 AM

            That may be the weirdest, possibly most useless thing I ever read.

            2 Replies
            1. re: chicgail
              hill food RE: chicgail Apr 28, 2012 06:01 PM

              ah but a challenge to find something even dumber! yes I aspirate a protective layer of spittle before storing my leftovers - it's that personal touch.

              1. re: hill food
                chicgail RE: hill food Apr 28, 2012 08:06 PM


            2. Bacardi1 RE: Puffin3 Apr 28, 2012 05:05 PM

              You're doing nothing but contaminating your food.

              1. r
                ricepad RE: Puffin3 Apr 28, 2012 07:10 PM

                I'm dying to know what else this 'expert' advocated!

                1. w
                  wyogal RE: Puffin3 Apr 28, 2012 07:19 PM


                  1. s
                    sueatmo RE: Puffin3 Apr 28, 2012 07:55 PM

                    You're serious? You saw that? I've heard of sucking the air out of baggies with a straw, but blowing on the food before sealing it sounds just wrong.

                    1 Reply
                    1. re: sueatmo
                      hill food RE: sueatmo Apr 28, 2012 11:08 PM

                      well yes babette's idea and yours are possibly understandable. but maybe it it's a dense-minded hoax.

                    2. John E. RE: Puffin3 Apr 28, 2012 08:15 PM

                      If you wish to keep food fresher longer in a container you have to replace the air with carbon monoxide. The meat packers have done this to keep the meat red in those plastic containers with the plastic wrap tightly over the top. The best way to do this at home is to take a hose, attach it to the tailpipe of your car, start the engine and squirt carbon monoxide into the jar and then quickly close the lid. This should help the contents to stay fresh for at least three days.

                      2 Replies
                      1. re: John E.
                        hill food RE: John E. Apr 28, 2012 11:12 PM

                        John - if I'm gonna go to those extremes I have far different goals.

                        1. re: John E.
                          sunshine842 RE: John E. Apr 29, 2012 12:40 AM

                          Oh.....I choked on my coffee....ROFL

                        2. c
                          cacruden RE: Puffin3 Apr 28, 2012 10:47 PM

                          If you want to preserve ingredients... Just invest in vacuum seal lids and use a vacuum sealer to suck most of the air out.... When you open a jar and you hear a sound - it is air rushing into a vacuum that was created during the jarring process.

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