extend the shelf- life of your flour - iaom · pdf fileextend the shelf life of your flour ......

1 | © Bühler |

Extend the shelf-

life of your flour

Herman Roux

2 | © Bühler |

Extend the shelf life of your flour

Factors which can influence the shelf-life of flour

High amount of bacteria and molds

Infested flour

High content of moisture levels

Micro-organisms

Micro-organisms includes bacteria, yeasts and molds

High amount of bacteria in lighter particles for grain impurities

Conditions for bacteria to grow

IAOM 2014 " Extend the self life of your flour"

3 | © Bühler |

How can millers extend the shelf life of flour

In order to reduce contamination, one must know in which stage of

the process it can be done most efficiently.

During the milling process, millers can achieve a substantial reduction of

impurities

Well designed cleaning flow diagram

Pre selection of equipment

Optimized process from an engineering approach

Sound knowledge of sanitation


4 | © Bühler |

How can millers change the shelf life

How can the miller extend the shelf-life of flour

Reduce the bacteria and molds

Control the moisture level of grain

Remove live infestation

Reduction of bacteria count during the milling process

First cleaning reduce : 70%

Dampening increase : 20-30%

Second cleaning reduce : 30-50%

Finish product : 2-20%


5 | © Bühler |

Extend the shelf life of your flour

100%

30%

60%

20% 20%

0%

20%

40%

60%

80%

100%

120%

Raw Wheat After 1ste Cleaning

After Tempering After 2nd Cleaning

Flour

Reduction of bacteria count during milling process.


6 | © Bühler |

Modern Wheat

Cleaning

Concepts

7 | © Bühler |

MagnetMMUA

Raw

Wheat

Bins

Screw

Conveyor

NFAS

Autom.Moisture Controller

MYFD

Outlet HopperMFAK

Flow

Balancer

MZAH

High-Level

Indicator

ScaleMSDL

Dampener „Turbolizer“MOZL

Screw Conveyor

NFAS

Tempering Bins

High-Level Indicator

Elevator

MGEL

Elevator

MGELLiquid Flow Controller

MOZG

S

Elevator

MGEL

Optical Sorter SORTEX B

Depot

Low-Level

Indicator

Intermediate Separator

MANB

High-Performance Grain Aspirator

MTVA

High-Performance Grain Classifier

MTVA

CombistonerMTCG

FanMHTP

Capacity up to 28 t/h

Removal of

impurities

Separate

light from

heavy grain

Removal of

impurities

Continuously

measure

moisture and

dosing water


1

1

2

2

3

3

4

4

4

8 | © Bühler |

High-Performance

Grain Classifier

Vega MTVA

9 | © Bühler |

High-Performance Grain Classifier Vega MTVA Precise classification of grains. Removal of impurities

Coarse impurities

Cob

Straws

Maize

Light impurities

Dust

Chaff

Shriveled grain

Fine impurities

Sand

Weed seeds

Broken kernels

Raw Grain

Option: Grain classification

Large grain Small grain


10 | © Bühler |

Combistoner

MTCG-150/150 MTCG- 85/150

11 | © Bühler |

Destoner/Grader Combistoner MTCG Layout & Functional Principle

Raw material

High-density

impurities e.g.

stones

~1/3

Light product ~2/3

Heavy Product


12 | © Bühler |

New SORTEX

Technology

13 | © Bühler |

Input

Accept Reject

Discoloured grains

Spelt, Straw

Semi-transparent

Stones, Glas, Plastics

Mycotoxin damaged

Diseased kernels

Ergot

Foreign grain +

seeds

Dark defects

Light defects

Foreign material, unhealthy wheat

Optical Sorter SORTEX

Monochromatic inspection


14 | © Bühler |

Automatic

Moisture Control

for Grain

MYFD / MOZG

15 | © Bühler |

Automatic Moisture Control for Grain What is expected from a moisture control system

■ Reliable system

■ Consistency important

■ High accuracy important

■ Hygiene / Food safety


16 | © Bühler |

Automatic Moisture Control for Grain Moisture Controller MYFD / MOZG Summary

■ Higher sanitation

■ Reliable and accurate operation

■ No compressed air required

■ Easy replace of MYFA/C


17 | © Bühler |

Modern 2nd

Cleaning

Concepts

Scouring / Light Peeling / Peeling

18 | © Bühler |

Modern 2nd Cleaning Concepts Surface cleaning with Scourer MHXS

ElevatorMGEL

Flow Balancer MZAH

Multiple Bin Outlet MAKA

Screw Conveyor

NFAS

Tempering Bins

1.Bk

Differential Dosing Scale MSDG

Depot

Recirculating-Air Aspirator MVSQ

Scourer MHXS

Dampening Screw NFAS

Magnet MMUA

Magnet MMUA


Scouring : Minimuim reduction of bacteria

counts

Removing 0.05 up to 0.1% of the outer layer

19 | © Bühler |

MagnetMMUA

Aspiration ChannelMVSG

B1

High-Level

Indicator

ScaleMSDL

Depot

Light PeelerMHXM-WL

Screw

Conveyor

NFAS

Flow Balancer

MZAH

Elevator

MGEL

Tempering

Bins

Outlet HopperMAKA

Modern 2nd Cleaning Concepts Surface cleaning with Light Peeling Process MHXM-WL

After light peeling


Light Peeling : Reduction of bacteria counts


20 | © Bühler |

Modern 2nd Cleaning Concepts Surface Cleaning with Peeling Process MHXM-W

After peeling

Elevator

Flow

Balancer

MZAH

Te

mp

erin

g B

in

Screw Conveyor

NFAS

Recirculating-Air

Aspirator MVSQ

Peeler MHXM-W

1.Bk Scale

MSDG

Aspiration

Channel

MVSG

1.Bk

Magnet MMUA

Dampener „Turbolizer“

MOZL

Multiple Bin Outlet MAKA

Liquid Flow Controller MOZF

1.Bk Depot


Peeling : Maximum reduction of bacteria counts


22 | © Bühler |

MJZH Impact Machine MATADOR Market demand

Improve product quality → increase shelf-life


Eggs of the flour moth Larvae of the flour moth

23 | © Bühler |

MJZH Impact Machine MATADOR Customer benefit / Key features


Mortality rate ≥ 99% (confirmed by biological institute)

Energy savings compared with MJZG: up to 30%

Throughput 1 to …45 t/h

Inline conveying up to 1bar

Temperature and vibration monitoring

New operation

principle: Cross flow

24 | © Bühler |

How to extend the shelf-life of your flour Summary

Micro-organisms

Bacteria comes naturally in grain

It is a challenge to remove bacteria 100% but it

lays in the milling companies interest to control

these amounts.

New modern cleaning concepts

When designing a new cleaning concept, hygiene

need to be a focus point.


extend the shelf- life of your flour - iaom · pdf fileextend the shelf life of your flour ......

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