categorisation of foodgrains

CATEGORISATION OF FOODGRAINS
1.
RICE (RAW/PARBOILED RICE)
CATEGORY
DAMAGED GRAIN
DISCOLOURED GRAIN
A
Upto 3%
Upto 3%
B
Above 3% upto 4%
Above 3% upto 5%
C
Above 4% upto 5%
Above 5% upto 7%
D
2.
3.
Lot showing appreciable quantity of loose bran (more
than 0.5%) and giving unpleasant smell in respect of
raw and parboiled rice.
„D‟ category rice should be issued after cleaning
where necessary.
WHEAT
CATEGORY
Percentage of weevilled grains
A
Upto 1%
B
Above 1% and upto 4%
C
Above 4% and upto 7%
D
Above 7% and upto 10%
PADDY
The basis of categorization of paddy is the same as the case of wheat except for
incorporating the “designation” to indicate the intensity of slightly damaged/ dicoloured kernels.
Designation
Percentage of slightly damaged/ discoloured besides
touched/ damaged and discoloured grains.
1.
Upto 5
2.
Above 5 upto 10
3.
Above 10 upto 15
4.
Above 15 upto 20
Example:
Paddy grains with 1% of weevilled and 3% of slightly damaged/discoloured and
damaged/ discoloured grains will be categorized as A1.
CLASSIFICATION OF FOODGRAINS
Foodgrains in storage shall be classified as „Clear‟, „Few‟ and „Heavy‟ based on the
presence of insect population as indicted below:
a.
Clear
Lot completely free from any living infestation.
b.
Few
Lot having upto two living insects per 1 kg. of
representative sample.
c.
Heavy
Lot having more than two living insects per 1 kg. of
representative sample
GUIDELINES FOR SAFE STORAGE OF FOODGRAINS
 Grain should be „Clean‟ & „Dry‟.
 Godown should be storage worthy. Proper dunnage be used to avoid damage to bottom
layer due to seepage.
 Godown should be properly cleaned and sprayed before storage of grain.
 Periodical inspection of stock should be conducted every fortnight & regular prophylactic
measurers should be undertaken.
 Immediate curative treatment should be given in case of infestation and rodent control
measures should be adopted, if needed.
 Regular aeration of foodgrains is necessary for control of moisture, temperature and
infestation.
 Liquidation of stock should be done on “first-in-first out” (FIFO) basis so as to avoid
damage to stock due to prolonged storage.
UNIFORM SPECIFICATION OF RICE
(KMS 2014-15)
Rice shall be in sound merchantable condition, sweet, dry, clean, wholesome, of good
food value, uniform in colour and size of grains and free from moulds, weevils, obnoxious smell,
admixture of unwholesome poisonous substances, Argemone mexicana and Lathyrus sativus
(Khesari) in any form, or colouring agents and all impurities except to the extent in the schedule
below. It shall also conform to PFA Standards.
SCHEDULE OF SPECIFICATION
Sl.
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Refractions
Broken*
Raw
Parboiled/ single parboiled
rice
Foreign Matter**
Raw/ Parboiled/ single
parboiled rice
Damaged #/ Slightly Raw
damaged
Parboiled/ single parboiled
rice
Discoloured grain
Raw
Parboiled/ single parboiled
rice
Chalky Grains
Raw
Red Grains
Raw/ Parboiled/ single
parboiled rice
Admixture of lower Raw/ Parboiled/ single
classes
parboiled rice
Dehusked Grains
Raw/ Parboiled/ single
parboiled rice
Moisture content
Raw/ Parboiled/ single
parboiled rice
Maximum Limit (%)
Grade ‘A’
Common
Raw
25.0
25.0
16.0
16.0
0.5
0.5
3.0
4.0
3.0
4.0
3.0
5.0
3.0
5.0
5.0
3.0
5.0
3.0
6.0
-
13.0
13.0
14.0
14.0
* Not more than 1% by weight shall be small broken.
** Not more than 0.25% by weight shall be mineral matter and not more than 0.10% by
weight shall be impurities of animal origin.
# Including pin point damaged grains
UNIFORM SPECIFICATION OF ALL VARIETIES OF PADDY
(KMS 2014-15)
Paddy shall be in sound merchantable condition, dry, clean, wholesome of good food
value, uniform in colour and size of grains and free from moulds, weevils, obnoxious smell,
Argemone mexicana, Lathyrus sativus (Khesari) and admixture of deleterious substances.
Paddy will be classified into Grade „A‟ and Common groups.
SCHEDULE OF SPECIFICATION
Sl.No.
1.
2.
Refractions
Foreign matter
a) Inorganic
b) Organic
Damaged, discoloured,
sprouted and weevilled
grains
Maximum Limit (%)
1.0
1.0
5.0*
3.
Immature, Shrunken and
shrivelled grains
3.0
4.
Admixture of lower class
6.0
5.
Moisture content
17.0
*Damaged, sprouted and weevilled grains should not exceed 4%
N.B : Within the overall limit of 1.0% for organic foreign matter, poisonous seeds
shall not exceed 0.5% of which Dhatura and Akra seeds (Vicia species) not to
exceed 0.025% and 0.2% respectively.
TERMINOLOGY FOR FOODGRAINS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
Foodgrains include cereals, millets and pulses meant for human
consumption.
All components in foodgrains which differ from sound grains.
Refractions
Foreign matter Includes organic and inorganic matters. The organic matter includes
husk, chaff, straw, weed-seeds and other inedible grains. The
inorganic matters includes sand, gravel, dirt, pebbles, stones, glass,
metallic pieces, lumps of earth, clay and mud. Paddy shall be
considered as foreign matter in commodities other than paddy.
Foodgrains other than the grain under consideration.
Other
foodgrains
The presence of a variety of the same grain other than the variety in
Varietal
consideration.
Admixture
Kernels or pieces of grain kernels that are not fully developed.
Immature
Pieces of sound kernels that are less than 3/4th size of the full kernels.
Brokens
Those pieces of rice kernels which are equal to or smaller than 3/4th
Big-brokens
but bigger than ½ of the average length of the unbroken grain.
Those pieces of rice kernels which are equal to or smaller than ½ but
Medium
bigger than 1/4th of the average length of the unbroken kernel.
brokens
Small brokens Those pieces of rice kernels which are between 1/4th to 1/8th of the
average length of the unbroken rice, retained in the 1.10 mm sieve.
Broken less than 1/8th is organic foreign matter and called fragments.
Kernels or pieces of kernels that are sprouted or internally damaged as
Damaged
a result of heat, moisture, weather or microbes.
Kernels or pieces of kernels that are damaged or discoloured,
Slightly
superficially so as not to affect the quality of the material.
damaged or
Touched
Kernels or pieces of kernels that have changed the colour as a result of
Discoloured
deteriorative changes.
Weevilled grains are grain kernels that are partially or wholly bored
Weevilled
by insect injurious to grain but do not include germ-eaten grains and
Grains
egg-spotted grains.
Kernels, whole or broken which have more than 1/4th of the surface
Dehusked
area of the kernel covered with bran.
Grains
Rice kernels or pieces of kernels of which at least half of the portion is
Chalky Grain
opaque, milky white in colour and brittle in nature.
Rice kernels or pieces of kernels having more than 1/4th of the surface
Red grain
covered with red cuticle.
It is the content of water in grain. Amount of water present in grain
Moisture
which can be removed without having alternation in chemical
composition of the grain. It can be measured through „Digital
Moisture Testing Meter’
Foodgrains