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    Robolabs USA
    About us
    • About company
    • Hystory international
    • Patents & Certificates
    • Dealers
    • Our Team
    • Feedbacks
    • Career Opportunities
    • Payment details
    • Privacy Policy
    • General Condition of Use
    Catalog
    • Vortex Popcorn™ machine Robopop®
      Vortex Popcorn™ machine Robopop®
    • Caramelizer RoboSugar and SugarLips
      Caramelizer RoboSugar and SugarLips
    • Cotton candy machines
      Cotton candy machines
    • Popcorn Display Warmers
      Popcorn Display Warmers
    • Additional equipment
      Additional equipment
    • Doughnut & Crepe
      Doughnut & Crepe
    • Industrial Popcorn Production Line
      Industrial Popcorn Production Line
    • Professional restaurant kitchen
      Professional restaurant kitchen
    Services
    • Finansing
      • Fill the application form
      • Vendor validation
    • Rent
    • Service and buyback
      • Some general questions of the Robolabs service
    • Showroom trial
      • Showroom
    Projects
    • All projects
    Tecnical support
    • Grand Robopop 220 Sifter
      • Documents
    • Grand Robopop220
      • Documents
    • RoboJetFloss 120V
      • Documents
    • RoboMix Mini
      • wiring diagram
      • manual mix mini
    • Robopop 75
      • Documents
    • Robopop25
      • Documents
    • Robopop60
      • Documents
    • RoboSugar 10
      • Documents
    • RoboSugar 20
      • Documents
    • SugarLips 10
      • Documents
    • SugarLips 20
      • Documents
    • Twister-M2, Monster
      • wiring diagram ACB-07
      • wiring diagram ACB-02U
      • wiring diagram ACB-02E
      • manual
    Resources
    • News
    • Articles
    • FAQ
    • Reviews
    Contacts
    Equipment assistance
    How to buy
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      • Why popcorn becomes chewy?

      Why popcorn becomes chewy?

      Popcorn is generally very hygroscopic.
      Therefore, often in popcorn factories or in gourmet popcorn stores, businessmen ask: "Why does popcorn become chewy?" It is necessary to conditioning the room, and control the temperature and humidity. Then the popcorn will remain crispy and delicious!
      Here are the questions a factory owner should answer:
      What is the indoor humidity?
      What is their indoor temperature?
      Are there doors that often open to the outside?
      Are there exhaust hoods that remove excess heat and moisture outside?

      There is an interesting feature of the behavior of popcorn when cooling. At the end of the process of popping in the Robopop, the humidity of the popcorn is usually excessive. As it cools, popcorn loses moisture - the target percentage is 2%. It usually takes a few minutes for the popcorn to cool and become crispier. Sometimes customers take popcorn for further action right after the Robopop, so it's still didn't lose moisture.


      However, as soon as the difference between the temperature of the popcorn and the ambient temperature becomes less than 11 °C, the popcorn begins to take moisture from the air.
      Those it must be ensured that the popcorn has enough time to cool down, but after that, it must be isolated from the open air - closed in containers or further processed.

      During the operation of the popcorn machine, a lot of warm and humid air comes out of it, which must be removed immediately. Therefore, the instruction requires the installation of exhaust ventilation above the sifter outlet. In the appendix, there is a visual material on how the hood affects the air humidity.

      You can, of course, use a popcorn warmer (and this is generally its main function - to warm popcorn, reduce its moisture and make it crispy). But with large production volumes (hundreds of pounds an hour), this may not be very convenient. It is necessary to provide an indoor climate, especially in the tropics area or near the sea, lakes, oceans.

      3456476.PNG


      Relative humidity (RH) value is important for popcorn production. Exhausting ventilation helps to keep RH value on optimal level, even if the production room is being affected by outdoor humid air. For example, exhausting ventilation has been installed in a production room with three Grand Robopop 220 machines and a caramel coating line (up to 500 kg/h production rate). Accordingly to the Grand Robopop operation manual, it is required to arrange a ventilation hood rated not less than 2500 m 3 /h per each machine. Relative humidity measurements were being taken each day, twice a day, morning and evening for few weeks. The results are represented on the picture below. Despite of RH variations caused by natural outdoor air, average RH rate has been reduced once exhausting hood is installed:

      42342564576.PNG


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