What is the shelf life of vacuum packed flour in mason jars?

  • What is the shelf life of vacuum packed flour in mason jars?

    Posted by MartHale7 on May 3, 2023 at 7:12 pm

    I am considering using the flour I have packed in the jars only for emergency, and have a main rotation from a 5 gal bucket. But in my planning I am thinking I would like to rotate the flour like every 5 years, while using a main rotation from a 5 gal bucket, so that I don’t have to keep packing and re packing the jars….. I did a quick check and I am seeing 5 years from what I am hearing from people out there in the pepper community.

    Lorri-hilltop replied 10 months ago 9 Members · 14 Replies
  • 14 Replies
  • PackersRboss

    May 3, 2023 at 8:11 pm

    I have been trying to “block” you but your profile/name won’t pop up. I didn’t want to publicly embarrass you but I don’t want to see your posts. Can you please “block” me so your posts no longer appear in my news feed? Thanks.

    • Hanidu-Farms

      May 3, 2023 at 9:43 pm


    • skainsgirl

      May 3, 2023 at 10:31 pm

      You don’t have to block anyone! When you are in the activity feed, listed just above, are the choices for what you want to see. Choose connections to see only those you are friends with or groups to whom you belong. Or you can just choose to scroll on by.

      • Hanidu-Farms

        May 3, 2023 at 11:41 pm

        What she said.

    • GeorgiaGrandy

      May 3, 2023 at 11:13 pm

      I clicked on your profile and saw someone explain to you, how to “block” someone. Good to know! 😀 (Comments for Packers R Boss…not Marthale. 😊 )

  • KenJr

    May 4, 2023 at 2:21 am

    I’d like to hear the answer to this myself. But I’ve got another question to add with it. If I were to get a grain mill to grind my own corn flour. Would it be better to vacuum seal whole corn in Mylar bags than to store flour in jars? I figure if you grind something down you speed up the degradation process. Plus I’m betting freshly ground 5 year old corn isn’t as stale as 5 year old flour. Thanks Marthale for the question

    • This reply was modified 10 months ago by  KenJr.
    • MartHale7

      May 4, 2023 at 11:02 am

      And this is why I have both. The best bread I have made so far comes from a mixture of King Arthur flour 3 cups with 1 cup ground wheat berries. It is for this reason I store king Arthur flour, as it rises so well. For long term storage having grain in the berries does last longer. If the grain is kept dry away from humidity it has an extraordinary long shelf life.

      • MartHale7

        May 4, 2023 at 11:06 am

        The reason I would go with mylar bags is they are cheaper than jars.

        The reason I would go with jars, would be micro plastics in the bags.

        I have been using plastic food saver bags I get in bulk from Ebay, but I have been moving over to 1/2 gal mason jars because I feel better about food stored in jars to avoid the micro plastic….. The jars also out last the plastic bags so in the long term they can pay for themselves in not needing to replace the bags or if an event happened, you may not be able to get plastic bags.

  • Mepmo

    May 4, 2023 at 3:51 am

    i feel like someone needs to find Jesus

  • Junebugg77

    May 4, 2023 at 12:16 pm

    I am using both. I feel the jars are best option, but both are vacuum sealed.

    • MartHale7

      May 4, 2023 at 12:39 pm

      It would be interesting to do a test and see how much pressure is lost over time with plastic verses mason jars….

      Another question I have is how much vacuum is enough?…..

      Or what benefit would we get if we increased the vacuum?

      What is the strongest vacuum a mason jar can stand and be safe?

      • Hanidu-Farms

        May 4, 2023 at 1:24 pm

        Great questions!

  • MartHale7

    May 4, 2023 at 2:17 pm

    It seems that the amount of vacuum you need is related to how high you are compared to sea level. The high you are the less air pressure will be trying to rush into the jar.

    Discussion here -> https://www.northwestfirearms.com/threads/anyone-know-how-much-vacuum-a-mason-jar-can-handle.82886/

    • Lorri-hilltop

      May 8, 2023 at 11:46 pm

      I store mine in 1/2 gallon, gallon jars and 5 gallon food grade buckets.

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