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IS 13688 (1999): Packaged Pasteurized Milk

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Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. इंटरनेट मानक !ान $ एक न’ भारत का +नम-णSatyanarayan Gangaram Pitroda “Invent a New India Using Knowledge” प0रा1 को छोड न’ 5 तरफJawaharlal Nehru “Step Out From the Old to the New” जान1 का अ+धकार, जी1 का अ+धकारMazdoor Kisan Shakti Sangathan “The Right to Information, The Right to Live” !ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता ह Bharthari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 13688 (1999): Packaged Pasteurized Milk [FAD 19: Dairy Products and Equipment]
Transcript
Page 1: IS 13688 (1999): Packaged Pasteurized Milk

Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 13688 (1999): Packaged Pasteurized Milk [FAD 19: DairyProducts and Equipment]

Page 2: IS 13688 (1999): Packaged Pasteurized Milk
Page 3: IS 13688 (1999): Packaged Pasteurized Milk
Page 4: IS 13688 (1999): Packaged Pasteurized Milk

IS 13688 : 1999

mm

Indian Standmd

PACKAGED PASTEURIZED MILK - SPECIFICATION

(First Revision)

ICS 67.100.10

o-BIS 1999

BUREAU OF INDIAN STANDARDS MANAK BHAVAN,9 BAHADUR SHAHZAFAR MARG

NEW DELI-II 110002

Price Group 2

Page 5: IS 13688 (1999): Packaged Pasteurized Milk

Dairy Products and Equipment Sectional Committee, FAD 57

FOREWORD

This Indian Standard (First Revision) was adopted by the Bureau of~lndian Standards, after the draft finalized

by the Dairy Products and Equipment Sectional Committee had been approved by the Food and Agriculture Division Council.

Milk is one of the most important commodities that is required in every household as an article of food. Milk

contains many essential nutrients such as carbohydrates, proteins, lipids, minerals and vitamins. Therefore it

provides an ideal medium for rapid proliferation of most micro-organisms which degrade and alter its

composition thus reducing its keeping quality and making it un,fit for human consumption. Keeping the

public health and also economic consideration in view it is necessary that milk is pasteurized SO as to make it

safe for human consumption as well as increase its shelf life.

In order to ensure the quality of the pasteurized milk, this standard was first issued in 1992. However, certain

operational problems were faced in implementation of the standard, particularly with respect to the testing of

the microbiological requirements which require much longer time of testing. The Committee was of the view

that Methylene Blue Reduction (MBR) test is adequate for assessing the microbiological tests. In other

countries also this test is being used for this purpose. It was also brought out that traditional test methods for

plate count and coliform are time consuming and provide only retrospective data, therefore, waiting for

results would not be pragmatic. The dairy plants should be required to maintain test records of these

requirements for each lot/batch.

A need was therefore, felt to revise this standard to incorporate among others the following:

a) Separation of the microbiological requirements at plant level and for routine inspection.

b) Updating the various referred standards.

c) Deletion of the provision of distribution through vending booths and covering only packaged pasteurized

milk.

While formulating this standard, due consideration has been given to the relevant rules prescribed by the

Government of India under the Prevention qf' Food Ahltemtion Act, 1954 and Rules, I955 and Stmhrdv of Wrights trd Akw.~~~rv.s (fockcqcd Comrwu’ities) Rzdes, 1977. This standard is however, subject tothe restrictions

imposed under these wherever applicable.

For the purpose of decidin g whether a particular requirement of this standard is complied with, the final

value, observed or calculated. expressin g the result of a test or analysis. shall be rounded off in accordance

with IS 2 : 1960 ‘Rules for rounding off numerical values (revised)‘. The number of significant places

retained in the rounded off value should be the same as that of the specified value in this standard.

Page 6: IS 13688 (1999): Packaged Pasteurized Milk

IS 13688 : 1999

Indian Standard

PACKAGED PASTEURIZED MILK - SPECIFICATION

(First Revision)

1 SCOPE

This standard prescribes the requirements, methods

of test and sampling for packaged pasteurized milk.

2 REFERENCES

The Indian Standards listed in Annex A contain

provisions which through reference in this text,

constitute provision of this standard. At the time of

publication. the editions indicated were valid. All

standards are sub.ject to revision and parties to

agreements based on this standard are encouraged to

investigate the possibility of applying the most recent

editions of the standards indicated.

3 DEFUVITIONS

For the purpose of this standard the following

definitions shall apply.

3.1 Milk

Milk is the normal mammary secretion derived from

complete milking of healthy milch animal without

either addition of thereto or extraction therefrom. It

shall be free from colostrum. Milk shall include cow’s

or buffalo’s, or sheep’s or goat’s or a mixture thereof.

Standardized milk means milk or a combination of

any of- tile milk mentioned under 3.1 that has been

standardized to a lilt and solids-non-fat percentage

minimuni at 4.5 and 8.5 respectively by adjustment

or addition of milk solids. Standardized milk shall

be pasteurized.

3.1.2 Full ~.‘I.CYIIII A {ilk

Full cream milk means milk or a combination of any

of the milk mentioned undet 3.1 that has been

standardized to a fat and solids-not-fat percentage

minimum at 6.0 and 9.0 respectively by adjustment

of f?~~s/n~ilk solids. Full cream milk shall be

pasteurized.

3. I .3 Totwi hjlilk

Toned milk means milk or a combination of any of

the milk mentioned under 3.1 that has been

standardized to a f‘at and solids-not-fat percentage

minimum at 3.0 and 8.5 respectively by adjustment

or addition of milk solids. When fat or dry non-fat-

milk solids are used, it shall be ensured that the

product remains ~homogeneous and no deposition of

solids takes place on standing. Toned milk shall be

pasteurized.

3. I .4 Double Tend Milk

Double toned milk means the milk prepared by

admixture of milk mentioned under 3.1 with fresh

skimmed milk or milk solids that has been

standardized to a fat and solids-not-fat percentage

minimum at I .5 and 9.0 respectively by ad.justment

or addition of milk solids. When fat or dry non-fat-

milk solids are used. it shall be ensured that the

product remains homogeneous and no deposition of

solids takes place on standin g. It shall be pasteurized.

3.1.5 Skirnrned Milk

Skimmed milk means the milk prepared from milk

mentioned under 3.1 from which ahnost all the milk

fat has been removed mechanicalty. It shall not have

fat more that 0.5 percent and solids-not-fat should

not be less than 8.7 percent. It shall be pasteurized.

3. I .6 Recotnhined Milk

Recombined milk means the homogenized product

prepared from milk fat, milk solids-not-fat and water

that has been standardized to fat and solids-not-fat

percentage minimum at 3.0 and 8.5 respectively by

adjustment or addition of milk solids. It shall be

pasteurized.

3.2 Milk Plant or Dairy

It shall be taken to include the building. machinery.

equipment and appliances necessary for collection.

pasteurization, cooling, bottling or fillinly 3 in other

containers and storage of milk including those at

intermediate chilling centres.

3.3 Pasteurization

It shall

a)

b)

c)

I

refer to:

the process of heating every particle of milk

at a specified temperature;

holding the milk at such temperature conti-

nuously for a specified period in a standard

and properly operated equipment; and

immediate cooling in the same equipment

after heating.

Page 7: IS 13688 (1999): Packaged Pasteurized Milk

IS 13688 : 1999

4 DRAW MATERIAL

4.1 Milk

Milk intended for pasteurization shall be wholesome

and shall be free from any added extraneous matter.

It shall be tested for its freedom from preservatives,

neutralizers, adultearants [see IS 1479 (Part I)]. Milk

shall also be evaluated for acidity, bacterial load,

temperature and organoleptic requirements (see

IS 7768), so that these parameters can serve as

guidelines to the processors for continual improvement

in the quality. Milk shall satisfy the requirements

prescribe under the I’mzution qf’Food Adultetution

Rules. 19.55. As far as possible, milk with methylene

blue reduction time of not less than 30 minutes in

summer and 60 minutes in winter should be accepted

for pasteurization.

4.2 Milk Powder and Skimmed Milk Powder

Milk powder and skimmed milk powder if used in

liquid milk shall conform to IS 1165, IS 13334

(Part I) and IS I3334 (Part 2) respectively.

4.3 Butter and Butter Oil

Butter or butter oil if used for adjustment of fat content

in the milk shall conform to IS 13690 and IS 13689

respectively.

4.4 Water conforming to the tolerances specified fol

water for dairies (SCL IS 4251) shall be used.

5 PASTEURIZATION

All classes of the milk defined under 3.1.1 to 3.1.6

shall be pasteurized by the method given in

Annex B.

6 HYGIENIC CONDITION

Milk shall be processed. pasteurized, packed and

handled under strict hygienic conditions as prescribed

in various clauses of IS 7005.

6.1 Milk Plant

The building where the milk is received, processed,

bottled or filled in other containers, stored and where

the equipment and containers are cleaned and

sterilized. shall be such that it satisfied the

requirements laid down in IS 7005. The floors, walls

and ceilings, doors and windows, lighting

arrangement. ventilation, toilet and hand washing

facilities should also comply with the requirement of

IS 7005.

6.2 Water Supply

The water supply shall conform to the tolerances

specified for water for dairies (see IS 4251) and shall

be easily accessible and adequate.

6.3 Sanitary Piping

All pipings and fittings which come in content with

milk shall be of sanitary types which can be easily

cleaned and sanitized (see IS 3382).

6.4 Equipment and Containers

Milk receiving equipment, storage tanks, pasteurizing

and cooling equipment, cans bottles, aluminum foils

and other packing materials with which milk comes

into contact shall be of smooth, impervious, non-

corrosive, non-toxic material and so constructed as

to be easily cleaned and sanitized. Milk bottles, cans

tanks and other items of equipment shall conform to

relevant Indian Standards prescribed for this purpose.

6.5 Cleaning and Sanitization of Plant Equipment

and Containers

The pasteurization plant and other equipment used

for receiving, processing, storage and bottling, and

milk cans and bottles used for filling milk, shall be

cleaned and sanitized according to the method

prescribed in IS 5253.

6.5.1 After sanitization and during usage or storage,

the equipment and containers shall be protected from

contamination.

6.6 Surroundings and Waste Disposal

The immediate surroundings shall be kept neat and

clean and proper arrangement made for the disposal

of waste.

6.7 Personnel Health and Cleanliness

All employees and other persons handling milk or

equipment in the plant shall be medically examined

every six months by a competent authority and

certified to be physically fit and free from infections

or other communicable diseases. All persons working

in the plant shall wear clean garments, preferably

white suits and caps, and strictly adhere to rules of

personal hygiene (EC’ IS 7005).

7 REQUIREMENTS

7.1 The product shall be white or white with creamish/

greenish tinge. It shall be clean, wholesome and rich

in taste. It shall be free from the defects given in

Table I.

7.2 Sensory evaluation, selection of panel&t and

training of the panelist shall be done in accordance

with IS 7768. Number of trained panelist should be

five to seven and should be checked for their

consistency and acuity, once in three months.

Page 8: IS 13688 (1999): Packaged Pasteurized Milk

Table 1 Defects in Milk

(C/L7l/.W 7. I)

SI No. Characteristics Defects

i) Colour and appearance Suspended particles. filth, foreign

matter. bloodcell, sediments

Ii) Odour Stale, acidic. abnormal

iii) Flavour Cooked. oxidized. rancid,

metallic. neutralizer, feed. bamey. cow): tlavour defect due to

adulteration

iv) Body Watery. ropy, curd)

7.3 The pasteurized milk at plant level shall comply

with the following microbiological requirements:

a) Total plate count per ml, MUX 30 000 when

tested in accordance with the IS 5402.

b) Coliforms, in I: IO dilution shall be absent

when tested in accordance with the IS 5401.

c) Methylene blue reduction test shall not

decolourize in 5 hours when tested in

accordance with the IS 1479 (Part I).

7.4 The product shall also meet with the requirements

given in Table 2.

8 STORAGE

8.1 Pasteurized milk shall be stored before packing

in such a way that temperature of milk shall not

exceed 8’C.

9 PACKING AND MARKING

9.1 Packing

Pasteurized milk shall be packed in clean, sound and

sanitary containers made of glass (see IS 1392),

polyethylene pouches (conforming to IS I ISOS),

properly sealed so as to prevent contamination.

9.2 Marking

The following information shall be marked legibly

IS I3688 : 1999

and indelibly on each container/pouch:

a)

b)

c> 4

e)

f)

S>

h)

j>

k)

Name of the material ‘Pasteurized milk’;

Type of milk ‘full cream’ ‘toned’, standar-

dized’, skimmed,‘double-toned’, ‘recombined’

as applicable;

Batch or Code number;

Date of packing and/or time;

Name of the processor;

Net volume in ml or litre;

Best before ~-

Fat ~ percent, Solid-not-fat -percent;

If stored in such a way that temperature of

milk shall not exceed 8YI; and

Any other requirements under the Standor& qf Weights and Me~~.s~~res (Packaged Commodities) Rules, 1977 the Prevention qf Food Adulteration Act, 1954 and Rules

framed thereunder.

9.2. I BIS Certifjcation Marking

The product may also be marked with the Standard

Mark.

9.2.1.1 The use of the Standard Mark is governed by

the provisions of Burem of Indian Standards Act, 1986 and the Rules and Regulations made thereunder.

The details of conditions under which the licence for

the use of Standard Mark may be granted to

manufacturers or producers may be obtained from

the Bureau of Indian Standards.

10 SAMPLING

10.1 Representative samples of pasteurize milk shall

be drawn, handled, stored and tested for conformity

to this standard by the method prescribed in IS I 1546.

Table 2 Requirements for Pasteurized Milk

(Clause 7.4)

SI Characteristics Requirements Method of Test, No.

/ Y Ref to

Full Stand- ‘lhnned Double Skim- Recom- Cream ardized Milk Toned med bined

Milk Milk Mik Milk Milk

(I) (2) (3) (4) (5) (6) (7) (8) (9)

i) Milk fat, percent

by mass. Afin 6.0 4.5 3.0 I.5 3.0 IS 1479 (Pert 2)

Alus - - - - 0.S -

ii) Milk solids-not- 9.0 8.5 8.5 9.8 8.7 8.5 IS 12333 fat (S

T F). percent IS 1479 (Part 2)

by ma, 6, Mu

iii) Phosp’wtase test < I

Negative ) IS 8479 (Parts I & 2)

iv) Neutrjlizer f Absent > IS 1479 (Part I)

Page 9: IS 13688 (1999): Packaged Pasteurized Milk

IS 13688 : 1999

IS No.

1165 : 1992

1392 : 1983

1479

(Part 1) : 1960

(Part 2) : 1960

4251 : 1967

5401 : 1969

5402 : 1969

7005 : 1973

7768 : 1975

8479

ANNEX A (Chse 2)

LIST OF REFERRED INDIAN STANDARDS

Title

Milk powder yburth revision)

Glass milk bottles (third revision)

Methods of test for dairy industry :

Rapid examination of milk

Chemical analysis of milk

Quality tolerances for water for processed food industry

Method for detection an estimation of coliform bacteria in foodstuffs

Method for standard plate count of bacteria in foodstuffs

Code for hygienic conditions for

IS No.

(Part 1) : 1977

(Part 2) : 1977

10083: 1982

11546 : 1985

11805 : 1986

12333 : 1997

13334 production, processing, trans- portation and’distribution of milk

(Part 1) : 1998

Sensory evaluation of milk (Part 2) : 1992

Method for determination of 13689 : 1992

phosphatase activity in milk and 13690: 1992

milk products: 14542 : 1998

ANNEX B (Clause 5)

PASTEURIZATION

B-l GENERAL

The pasteurization of milk shall be performed according to any of the procedure specified under B-2, The pasteurizing vat or pasteurizer shall be equipped with accurate temperature indicating and recording devices (thermograph). High Temperature Short Time (HTST) plants should be provided with automatic flow diversion valve. The output of the recording devices shall be available for inspection for at least six months.

Title

Routine method

Reference method

Method of test for determination of SNP (solids-not-fat) in milk by the use of lactometer

Methods of sampling for milk and milk products

Polyethylene pouches for liquid milk

Methods for determination of total solids content in milk, cream and evaporated milk (Reference method) (first revision)

Skimmed milk powder :

Standard grade yirst revision)

Extra grade

Butter oil (butter fat)

Pasteurized butter

Partly skimmed milk powder

B-2 METHOD

B-2.1 Holder Method

Milk is heated to at least 63% and held continuously at that temperature for at least 30 minutes and then immediately cooled in the same equipment to 5oC or less.

B-2.2 High Temperature Short Time Method (HTST)

In this method milk is heated at least to 71.5V and held continuously at that temperature for at least 15 seconds and then immediately cooled in the same equipment to 5% or less.

4

Page 10: IS 13688 (1999): Packaged Pasteurized Milk

--.._ . -._ -.,______ _... ---____ -.-L-L ._

Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote harmonious development of the activities of stardardization, marking and quality certification of goods and attending to connected matters in the countr,~.

Copyright

BIS has the copyright of all its publications. No part of these publications may be reproduced in any form without the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publication), BIS

Review of Indian Standards

Amendments are issued to standards as the need~arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken,,up for revision. Us+rs of Indian Standards should ascertain that they are in possession of the latest amendments or edition by refe/rring to the latest issue of ‘BIS Handbook’ and ‘Standards: Monthly Additions’.

This Indian Standard has been developed from Dot: No. FAD 57 (899).

Amendments~Issued Since Publication

Amend No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDS Headquarters:

Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002 Telephones: 323 01 3 1,323 3375,323 94 02

Regional Offices:

Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg NEW DELHI 110002

Eastern : l/14 C.I.T. Scheme VII M, V.I.P. Road, Kankurgachi CALCUTTA 700054

Northern : SC0 33 5-336, Sector 34-A, CHANDIGARH 160022

Southern : C.I.T. Campus, IV Cross Road, CHENNAI 600113

Western : Manakalaya, E9 MIDC, Marol, Andheri (East) MUMBAI 400093

Bran&es : AHMADABAD. BANGALORE. BHOPAL. BHUBANESHWAR. COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI. VYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR. I!ATNA. PUNE. RAJKOT. THIRUVANANTHAPURAM.

,

Telegrams: Manaksanstha (Common to all offices)

Telephone

323 76 17,323 38 41

t

337 84 99,337 85 61 3378626,33791 20

{ 60 38 43 60-20 25

{ 235 02 16,235 04 42 235 15 19,23523 15

832 92 95, 832 78 58 832 78 91, 832 78 92

Printed at Simco Printing Press, Delhi


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