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Hand Washing

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					 Protecting Your Food Supply
  From the Farm to the Fork




A proper hand washing protects our
      fruits and vegetables from
             contamination
    Hand Washing
Food and Drug Protection Division/ NC
   Department of Agriculture and
         Consumer Service

 Training Material for Proper
        Hand Washing
              Is this true?




 Itis said that bacteria multiply themselves
  by thousands of times on our hands…
           Can we probe this?
      Test for Bacteria Touching an
           Ordinary Door knob




   In one of the NC Department of Agriculture and
    Consumer Service/ Food and Drug Protection
    Division laboratories we did two tests for bacteria
    after touching an ordinary door knob. The first test
    was done before hand washing and the second
    test was done after hand washing.
      Test for Bacteria Touching an
           Ordinary Door knob




   We did two tests for bacteria after touching an
    ordinary door.
      Touching a door knob




 This person handled this ordinary door knob; it
  could be in any house, office, etc.
 Then we conducted a test for the amount of
  bacteria the person picked up on their hands.
Test for bacteria on hand before
          hand washing
                                       Agar


                                      Petri Dish




 Inside the Petri Dish there is Agar
 Agar is a jelly like substance use for growing
  bacteria
 Bacteria transferred to the agar will grow in 48
  hours
Results of test for bacteria
                Each of these shapes
                 is a different type of
                 bacteria that was on
                 the hand
                Viruses, bacteria,
                 fungi multiply
                 themselves by
                 thousands of times on
                 our hands, and they
                 do it in a few minutes
Big Question
         If we get bacteria on
          our hands by just
          touching a door, what
          would happen to food
          if we touch it without
          first properly washing
          our hands?
Big Answer

         Yes!
      You got it right. If we
         touch food without
      first properly washing
         our hands, we will
      certainly contaminate
      produce and anything
             else we eat
             Same Door Knob




   The next test for bacteria was done after
    handling the door knob and then washing the
    hands.
    Before doing the second test
 She washed her
  hands with warm
  water and soap.
 She only washed her
  hands for only 15
  seconds. We will see
  if this was enough
  time to remove all
  bacteria.
 Drying hands should
  always be done with
  disposable paper
  towel.
 Bacteria can grow in
  cloth towels.
    Test for Bacteria on Hands after
             Hand Washing

                               Agar

                                      Petri
                                      Dish


   This test for bacteria on hand was done after
    she washed her hands

   She again put her hand on the agar, inside the
    petri dish
After Hand Washing
            After 15 seconds of
             hand washing, one
             bacteria was
             missed.

            It is important to
             wash your hands 20
             seconds
                  Toilet Paper
   We just learned how our hands get
    contaminated after touching an ordinary door
    knob; and it could be anything else like: tools,
    keys, money, etc.

   Is it the same true for toilet paper?
    Toilet Paper Is Never Wide or
            Strong Enough




   Light can easily pass through toilet paper
Big Question


    Iflight can pass
     through a piece of toilet
     paper, what else could
     pass through a piece of
     toilet paper?
Big Answer

     Yes!
      You got it right.
       Bacteria can easily
       pass through a piece
       of toilet paper and
       contaminate your
       hands.
      It is essential to
       always wash your
       hands after going to
       the restroom
Most Common Bacteria




        Staphylococcus
         Aureus
Most Common Bacteria




        Salmonella
Most Common Bacteria
           E.   Coli
Most Common Bacteria




         Listeria
  Most Common Food Viruses
 Viruses are much smaller than bacteria.
 Some of the common food viruses include:
 Hepatitis A, Norovirus, and Rotavirus.
 Some diseases, like Hepatitis A, can be
 caused when an infected worker directly
 contaminates the food they are handling
 with their hands.
Most Common Food Viruses
       Hepatitis A
Most Common Food Viruses
        Norovirus
Most Common Food Viruses
        Rotavirus
 Most Common Food Parasites
 Parasites can be transmitted to people by
 water, food, or from another person. Some
 of the common food parasites are
 Cryptosporidium, Cyclospora, Giardia,
 Trichinella, and various worms.
Most Common Food Parasites
      Cryptosporidium
Most Common Food Parasites
        Cyclospora
Most Common Food Parasites
         Giardia
Most Common Food Parasites
        Trichinella
Common Symptoms for
 Food borne Diseases

      Diarrhea
      Vomiting
       Fever
     Muscle pain
   Stomach cramps
     Dehydration
      Severe Risk for food borne
               Illness




•   Pregnant women can lose their babies because
    of contaminated food
     Severe Risk for food borne
              Illness




   Babies can be born with physical or brain
    problems
Severe Risk for food borne
         Illness

                Bacteria can harbor in
                 some joints and
                 cause Septic Arthritis
Severe Risk for food borne
         Illness

                 Many people have
                  died or become
                  seriously sick
                  because of
                  contaminated food
  When to Wash Your Hands?
 After going to the
  restroom
 Before snacking
 Before eating
 Before cooking
 After sneezing
 Every time your
  hands are dirty
      How to Wash Your Hands?




   Use warm water
   Use soap
   Wash your hands back and forth
   Don’t forget to wash your thumbs, under your nails and
    in between your fingers
   Wash your hands for 20 seconds, or sing Happy
    Birthday twice
   Fully dry out your hands with paper towel
Who Can Tell Me What You Have
 Learned with this Presentation?
         Materials are Available
   The NC Department of Agriculture and
    Consumer Services, Food and Drug Protection
    Division, has available free materials about
    proper hand washing in English and in Spanish.

   Contact: Maria Noriega 919-733-7366 (x237)

				
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posted:12/7/2011
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