World Grain - September 2019 - 54

MILLING OPERATIONS

54

Common laboratory milling systems

Figure 2

Flours
Break Reduction Feed Adjust
Quad. Jr.

1

1 or 2

1

Adjustment Mode

No

Manual non-operating

Quad. Sr.

1

1

1

No

Manual non-operating

Chopin

1

1

2

No

Pre-set

Bühler

3

3

2

Yes Linked 3 Operations (L and R)

Ross/Allis

5

8

4

Yes

Independent (L and R)

Miag
Bühler
Tandem

3

5

4 or 5

Yes

Independent (In/out)

5

7

5

Yes Linked 3 Operations (L and R)

Source: Jeff Gwirtz

Figure 3 Cumulative ash curves for laboratory mills
.60

Ash %-(0% m.b.).

sifter cloth selection, sifting times and loads, duster and
duster screen selection and operating rate as well as the
general wear of all laboratory milling equipment.
The purpose of any laboratory procedure is to identify
test factors and separate those that are to be held constant
and those that are to become the variable(s) of interest. In
the case of laboratory milling, the wheat performance is
the variable of interest. The laboratory milling procedures
identify those factors the evaluator would like to control
as parameters of the evaluation procedure. It is known that
conditioning moisture, tempering time, roll gaps setting,
IHHG UDWH DQG WHPSHUDWXUH LQÀXHQFH WKH PLOOLQJ SHUIRUmance of wheat.
The goal of laboratory milling is to learn how this wheat
responds relative to other wheat samples given the same
treatment. In order to maintain reliability, it is important to
instruct laboratory mill operators to follow established procedures to the letter and constantly challenge themselves to
eliminate extraneous sources of variation in order to minimize "noise" in the procedure.
Blind controls and check samples may be used to evaluDWHWKHLQÀXHQFHRIWKHRSHUDWRURQWHVWUHVXOWV,IODERUDWRU\PLOORSHUDWRUVDUHLQÀXHQFLQJWHVWUHVXOWVFDXVHVIRUWKH
GLVFUHSDQFLHVPXVWEHLGHQWL¿HGDQGFRUUHFWHG$UHYLHZRI
the operators written log where observations and changes
have been recorded might provide clues to the source of the
SUREOHP(YHU\H൵RUWPXVWEHPDGHWRPDNHWKHODERUDWRU\
PLOOLQJSURFHVVFRQVLVWHQWWRWKHSRLQWWKDWLVGRHVQRWLQÀXence test results.
7KH¿JXUHVWRWKHULJKWLQFOXGHVHYHUDOW\SHVRIODERUDWRry mills used in wheat crop analysis. They vary in complexLW\DQGDELOLW\WRIDFLOLWDWHÀRXUUHFRYHU\ZKLOHSURGXFLQJ
D ORZ DVK EULJKWO\ FRORUHG ÀRXU /DERUDWRU\ PLOOV DUH QRW
HTXLSSHGZLWKSXUL¿HUVGXVWHUVDQGGXVWFROOHFWRUVLQPRVW
LQVWDQFHV KRZHYHU ODERUDWRU\ VL]H SXUL¿HUV ODERUDWRU\
dusters and dust collection can be added to some laboraWRU\PLOOLQJV\VWHPV$VWKHQXPEHURIJULQGLQJDQGVLIWLQJ
RSHUDWLRQVLQFUHDVHVRGRHVWKH\LHOGDQGÀRXUTXDOLW\
Figure 2 shows the most common laboratory milling sysWHPV WKDW PD\ EH IXUWKHU PRGL¿HG DQG GHYHORSHG E\ WKH
end user.
/DERUDWRU\PLOOVGRQRWSURGXFHLGHQWLFDOUHVXOWVRUÀRXUV
)LJXUHVKRZVWKHFXPXODWLYHDVKFXUYHVIRUÀRXUSURGXFHG
IURP WKH VDPH ZKHDW VDPSOH PLOOHG LQ  RQ GL൵HUHQW
laboratory mills, including the Kansas State University Pilot
Flour Mill and an undisclosed commercial mill in addition to
a Bühler Tandem Milling of a current (2019) hard red winter
ZKHDWÀRXU7KHODERUDWRU\PLOOKDYLQJWKHIHZHVWJULQGLQJ
DQGVLIWLQJRSHUDWLRQVSURGXFHVOHVVÀRXUKLJKDVKÀRXU$V
the complexity of the laboratory milling system increases,
WKH ÀRXU H[WUDFWLRQ DVK LPSURYHV 7KH DVK DQG H[WUDFWLRQ
RIÀRXULVEHWWHUIRUWKH.DQVDV6WDWH8QLYHUVLW\3LORW0LOO
than the commercial mill because of the extensive amounts
RIUROOVLIWHUDQGSXUL¿HUVXUIDFHSHUXQLWRIÀRXUSURGXFHG
than what was available in the commercial mill.

.50

.40

.30

.20
0

10

20

Quad Sr.
Commercial Mill

30
Buhler
Quad Jr.

40

50

60

70

80

Allis Mill
Pilot Mill
Multomat
Tandem Mill

% of total products
Source: Jeff Gwirtz

When using laboratory milling techniques for production
RIÀRXUVIRUUHVHDUFKRUGHYHORSPHQWSXUSRVHVLWLVLPSRUtant to document and record information about the laboratory milling process used to allow complete repetition of
the work accomplished as well as for commercial scale-up.
+RZZHOOGRHVODERUDWRU\PLOOUHVXOWVUHÀHFWZKHDWSXUchased or your mill performance? Perhaps looking into
laboratory milling procedures and setup will improve laboratory mill utility in operation management and quality
control.
Part 2 of this series will present results of varying roll
settings on the same wheat and impact on mill balance and
ÀRXUDQDO\VLV
Jeff Gwirtz, a milling industry consultant, is president of JAG Services Inc.
He may be reached at jgwirtz@att.net.
We want to hear from you - Send comments and inquiries
to worldgrain@sosland.com. For reprints of WG articles,
e-mail reprints@sosland.com.

September 2019 / World Grain / www.World-Grain.com


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World Grain - September 2019

Table of Contents for the Digital Edition of World Grain - September 2019

World Grain - September 2019
Contents
FROM THE EDITOR - Embracing technology paramount for sustainability
CALENDAR OF EVENTS
Organic & Non-GMO Forum covers opportunities in the market
News Review - Four sentenced to federal prison for organic fraud
Bunge to relocate global headquarters
Ceres completes acquisition of Delmar Commodities
Kraft, Mondelez Global penalized in wheat manipulation case
ASF takes toll on Wilmar earnings
VTB purchases stake in Russian grain trader
Nibulon begins construction on new grain facility
Viterra to acquire Ilta Grain’s Belle Plain facility
CBH completes first storage expansion project
GRAIN MARKET REVIEW - COARSE GRAINS
COUNTRY FOCUS - ETHIOPIA
FEATURE: PASTA GAINING POPULARITY IN ETHIOPIA
FEATURE: IRAQ’S WHEAT MILLING CONUNDRUM
Recent developments
FEATURE: LMOI BRINGS FLOUR MILLING BACK TO MADAGASCAR
FEATURE: MILLERS FOCUSING ON FLOUR SAFETY
MILLING OPERATIONS - ACCESSING milling potential
FEATURE: LATEST MILLING TECHNOLOGY
FEATURE: U.S. MILLERS EXPANDING INTO ORGANIC FLOUR
FEATURE: GROWTH ON IRAN FEED INDUSTRY’S HORIZON
FEATURE: Q&A WITH GAFTA’S SWITHUN STILL
FEATURE: WILD WEATHER FAILS TO DRIVE PRICES HIGHER
TECHNICAL PROFILE: MILL OF THE FUTURE
SUPPLIER NEWS
PRODUCT SHOWCASE
WORLD GRAIN ARCHIVE
ADVERTISER INDEX
World Grain - September 2019 - World Grain - September 2019
World Grain - September 2019 - World Grain - September 2019
World Grain - September 2019 - 2
World Grain - September 2019 - 3
World Grain - September 2019 - 4
World Grain - September 2019 - Contents
World Grain - September 2019 - FROM THE EDITOR - Embracing technology paramount for sustainability
World Grain - September 2019 - 7
World Grain - September 2019 - Organic & Non-GMO Forum covers opportunities in the market
World Grain - September 2019 - 9
World Grain - September 2019 - Bunge to relocate global headquarters
World Grain - September 2019 - Ceres completes acquisition of Delmar Commodities
World Grain - September 2019 - Kraft, Mondelez Global penalized in wheat manipulation case
World Grain - September 2019 - ASF takes toll on Wilmar earnings
World Grain - September 2019 - Viterra to acquire Ilta Grain’s Belle Plain facility
World Grain - September 2019 - CBH completes first storage expansion project
World Grain - September 2019 - GRAIN MARKET REVIEW - COARSE GRAINS
World Grain - September 2019 - COUNTRY FOCUS - ETHIOPIA
World Grain - September 2019 - 18
World Grain - September 2019 - 19
World Grain - September 2019 - 20
World Grain - September 2019 - 21
World Grain - September 2019 - FEATURE: PASTA GAINING POPULARITY IN ETHIOPIA
World Grain - September 2019 - 23
World Grain - September 2019 - 24
World Grain - September 2019 - 25
World Grain - September 2019 - FEATURE: IRAQ’S WHEAT MILLING CONUNDRUM
World Grain - September 2019 - 27
World Grain - September 2019 - 28
World Grain - September 2019 - 29
World Grain - September 2019 - 30
World Grain - September 2019 - Recent developments
World Grain - September 2019 - FEATURE: LMOI BRINGS FLOUR MILLING BACK TO MADAGASCAR
World Grain - September 2019 - 33
World Grain - September 2019 - 34
World Grain - September 2019 - 35
World Grain - September 2019 - 36
World Grain - September 2019 - 37
World Grain - September 2019 - FEATURE: MILLERS FOCUSING ON FLOUR SAFETY
World Grain - September 2019 - 39
World Grain - September 2019 - 40
World Grain - September 2019 - 41
World Grain - September 2019 - 42
World Grain - September 2019 - 43
World Grain - September 2019 - 44
World Grain - September 2019 - 45
World Grain - September 2019 - 46
World Grain - September 2019 - 47
World Grain - September 2019 - 48
World Grain - September 2019 - 49
World Grain - September 2019 - MILLING OPERATIONS - ACCESSING milling potential
World Grain - September 2019 - 51
World Grain - September 2019 - 52
World Grain - September 2019 - 53
World Grain - September 2019 - 54
World Grain - September 2019 - 55
World Grain - September 2019 - FEATURE: LATEST MILLING TECHNOLOGY
World Grain - September 2019 - 57
World Grain - September 2019 - 58
World Grain - September 2019 - 59
World Grain - September 2019 - FEATURE: U.S. MILLERS EXPANDING INTO ORGANIC FLOUR
World Grain - September 2019 - 61
World Grain - September 2019 - 62
World Grain - September 2019 - 63
World Grain - September 2019 - FEATURE: GROWTH ON IRAN FEED INDUSTRY’S HORIZON
World Grain - September 2019 - 65
World Grain - September 2019 - 66
World Grain - September 2019 - 67
World Grain - September 2019 - FEATURE: Q&A WITH GAFTA’S SWITHUN STILL
World Grain - September 2019 - 69
World Grain - September 2019 - 70
World Grain - September 2019 - 71
World Grain - September 2019 - FEATURE: WILD WEATHER FAILS TO DRIVE PRICES HIGHER
World Grain - September 2019 - 73
World Grain - September 2019 - 74
World Grain - September 2019 - 75
World Grain - September 2019 - TECHNICAL PROFILE: MILL OF THE FUTURE
World Grain - September 2019 - 77
World Grain - September 2019 - 78
World Grain - September 2019 - 79
World Grain - September 2019 - SUPPLIER NEWS
World Grain - September 2019 - 81
World Grain - September 2019 - 82
World Grain - September 2019 - 83
World Grain - September 2019 - 84
World Grain - September 2019 - 85
World Grain - September 2019 - 86
World Grain - September 2019 - 87
World Grain - September 2019 - PRODUCT SHOWCASE
World Grain - September 2019 - WORLD GRAIN ARCHIVE
World Grain - September 2019 - ADVERTISER INDEX
World Grain - September 2019 - 91
World Grain - September 2019 - 92
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https://www.nxtbook.com/sosland/wg/2017_08_01
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http://digital.world-grain.com/sosland/wg/2009_06_01
http://digital.world-grain.com/sosland/wg/2009_05_01
http://digital.world-grain.com/sosland/wg/2009_04_01
http://digital.world-grain.com/sosland/wg/2009_03_01
http://digital.world-grain.com/sosland/wg/2009_02_01
http://digital.world-grain.com/sosland/wg/2009_01_01
http://digital.world-grain.com/sosland/wg/2008_12_01
http://digital.world-grain.com/sosland/wg/2008_11_01
http://digital.world-grain.com/sosland/wg/2008_10_01
http://digital.world-grain.com/sosland/wg/2008_09_01
http://digital.world-grain.com/sosland/wg/2008_08_01
http://digital.world-grain.com/sosland/wg/2008_07_01
http://digital.world-grain.com/sosland/wg/2008_06_01
http://digital.world-grain.com/sosland/wg/2008_05_01
http://digital.world-grain.com/sosland/wg/2008_04_01
http://digital.world-grain.com/sosland/wg/2008_03_01
http://digital.world-grain.com/sosland/wg/2008_02_01
http://digital.world-grain.com/sosland/wg/2008_01_01
http://digital.world-grain.com/sosland/wg/2007_12_01
http://digital.world-grain.com/sosland/wg/2007_11_01
http://digital.world-grain.com/sosland/wg/2007_10_01
http://digital.world-grain.com/sosland/wg/2007_09_01
http://digital.world-grain.com/sosland/wg/2007_08_01
http://digital.world-grain.com/sosland/wg/2007_07_01
http://digital.world-grain.com/sosland/wg/2007_06_01
http://digital.world-grain.com/sosland/wg/2007_05_01
http://digital.world-grain.com/sosland/wg/2007_04_01
http://digital.world-grain.com/sosland/wg/2007_03_01
http://digital.world-grain.com/sosland/wg/2007_02_01
http://digital.world-grain.com/sosland/wg/2007_01_01
http://digital.world-grain.com/sosland/wg/2006_12_01
http://digital.world-grain.com/sosland/wg/2006_11_01
http://digital.world-grain.com/sosland/wg/2006_10_01
http://digital.world-grain.com/sosland/wg/2006_09_01
http://digital.world-grain.com/sosland/wg/2006_08_01
http://digital.world-grain.com/sosland/wg/2006_07_01
http://digital.world-grain.com/sosland/wg/2006_06_01
http://digital.world-grain.com/sosland/wg/2006_05_01
http://digital.world-grain.com/sosland/wg/2006_04_01
http://digital.world-grain.com/sosland/wg/2006_03_01
http://digital.world-grain.com/sosland/wg/2006_02_01
http://digital.world-grain.com/sosland/wg/2006_01_01
http://digital.world-grain.com/sosland/wg/2005_12_01
http://digital.world-grain.com/sosland/wg/2005_11_01
http://digital.world-grain.com/sosland/wg/2005_10_01
http://digital.world-grain.com/sosland/wg/2005_09_01
http://digital.world-grain.com/sosland/wg/2005_08_01
http://digital.world-grain.com/sosland/wg/2005_07_01
http://digital.world-grain.com/sosland/wg/2005_06_01
http://digital.world-grain.com/sosland/wg/2005_05_01
http://digital.world-grain.com/sosland/wg/2005_04_01
http://digital.world-grain.com/sosland/wg/2005_03_01
http://digital.world-grain.com/sosland/wg/2005_02_01
http://digital.world-grain.com/sosland/wg/2005_01_01
http://digital.world-grain.com/sosland/wg/2004_12_01
http://digital.world-grain.com/sosland/wg/2004_11_01
http://digital.world-grain.com/sosland/wg/2004_10_02
http://digital.world-grain.com/sosland/wg/2004_10_02
http://digital.world-grain.com/sosland/wg/2004_10_01
http://digital.world-grain.com/sosland/wg/2004_09_01
http://digital.world-grain.com/sosland/wg/2004_08_01
https://www.nxtbookmedia.com