Announcement

Collapse
No announcement yet.

Non-Electrical means for Dehydratation of Potatoes

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Non-Electrical means for Dehydratation of Potatoes

    Salutations to all and an Happy New Year to all of you whom I have not answered all your PM's.

    We have a request from Africa,

    How to dehydrate potatoes on a small scale ??

    Please create a thread for your answers in the african forum and we will forward your answered.

    Remember, Africa electrification is not yet wall to wall, natural ways for dehydratation is looked upon here.

    Sincere thanks.

    Snowy

  • #2
    Re: Some help needed please

    May you can get some leads from these links:




    There is a lot of knowledge in Africa about drying potatoes and other food.
    Some links here. There is much more.

    On Solar Dryers in Africa:



    PDF: http://www.areed.org/training/techno...er/dryer_0.pdf





    How to make a simple solar dryer:

    Peace Corps Online | January 1, 2003 - Countryside Magazine: Homesteading in Malawi, the Warm Heart of Africa by Peace Corps Volunteer Laina Poon



    Comparing Solar Drying and Charcoal Drying:

    ?Addressing chronic disease is an issue of human rights ? that must be our call to arms"
    Richard Horton, Editor-in-Chief The Lancet

    ~~~~ Twitter:@GertvanderHoek ~~~ GertvanderHoek@gmail.com ~~~

    Comment


    • #3
      Re: Some help needed please

      Thank you very much Dutchy,

      You just have create with your post a data base that difficult access to the internet in conjunction with low speed and short time access to the internet.

      You have gathered in just few minutes what could have take weeks and in some places months, yes months, to gathered from Africa.

      Thank you for taking the Time.

      Snowy

      PS this is now being forwarded to whom it concern.

      If someone has the time to post Dutchy references integraly on this thread it would be appreciated.

      Snowy still enthousiasts and confident on the Flu Trackers Team.

      Comment


      • #4
        Re: Some help needed please

        I read some of Dutchy's links and in
        Peace Corps Online | January 1, 2003 - Countryside Magazine: Homesteading in Malawi, the Warm Heart of Africa by Peace Corps Volunteer Laina Poon

        found the following, written by a Peace Core Worker in Malawi:

        To make a simple solar dryer, start by obtaining a split bamboo basket (the ones we use in the village are about 2-1/2' long, 1-1/2' wide, and 1-1/2' deep) or other medium-sized wooden box. Cut ventilation holes towards the bottom edge of one side of the box, and towards the top edge of the opposite side to allow heated air to escape and cooler air to enter from below. This removes moisture from the fruits or vegetables placed on a rack suspended inside the box. Screen your ventilation holes with mosquito netting to prevent flies from entering.

        Next, poke two sets of holes across from each other to hold the sticks that will support the removable interior drying rack. Cut four more straight sticks to size and lash them together with twine or the inner bark of the Mombo tree to make a rectangular frame. Carefully bind stretched mosquito netting over the frame you have just built to construct a mesh rack upon which you will lay the items you want to dry. Or, if you are lucky enough to have old galvanized steel window screens lying around, use one of those for your drying rack.

        Cut and sew a black plastic liner for your box so that it fits neatly inside, and secure it around your ventilation holes and two interior struts. Now the inside of the box is a black hole that will soak up energy from the sun to dry your produce. Instead of using plastic, you can simply paint the interior black, using only paint which will not fumigate your fruits and vegetables with noxious chemicals. Black paint in the village is made from powdered charcoal and turpentine, which, when heated, gives off gasses undesirable to combine with food.

        Finally, cut a piece of clear plastic a bit larger than the top of the box to serve as a lid. The plastic can be tightly fixed to the box by means of a thin strip of old tire, or a bungie cord if you have one. Slice your fruits or vegetables and soak them in a solution of half lemon juice, half water, for five to ten minutes depending on the size of the pieces. This reduces unsightly browning. Place the slices on your mesh rack so they are not touching each other. You can dry anything that doesn't have too high a moisture content, like pumpkins, sweet potatoes, onions, leafy vegetables, herbs, tomatoes, and almost all fruits. If the remaining moisture content is too high after you have dried the foods, they will mold when stored. If you have dried them thoroughly, however, they will keep for years when stored in an airtight plastic bag.

        Comment


        • #5
          Re: Some help needed please

          Thank you very much Nancy,

          In facts, I thank both of you and Dutchy from quite a lot of people hardly working in Africa and of course a hearth felt thanks for the people that will be able to have access to these techniques.

          These informations will help recurrantly.

          Snowy

          Comment

          Working...
          X