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M-I-12-14: Farm Bulk Milk Tank/Silo Manufacturing Dates Related to Item 18r-Raw Milk Cooling of the Grade “A” Pasteurized Milk Ordinance (PMO)

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HHS:PHS:FDA:CFSAN:OFS:DPDFS:DEB:MST

5100 Paint Branch Parkway
College Park, MD 20740-3835

M-I-12-14

December 7, 2012

TO: All Regional Food and Drug Directors
Attn: Regional Milk Specialists

FROM: Dairy and Egg Branch (HFS-316)

SUBJECT: Farm Bulk Milk Tank/Silo Manufacturing Dates Related to Item 18r-Raw Milk Cooling of the Grade “A” Pasteurized Milk Ordinance (PMO)

Item 18r-Raw Milk Cooling, ADMINISTRATIVE PROCEDURES, of the PMO states:

  1. All farm bulk milk tanks manufactured after January 1, 2000 shall be equipped with an approved temperature-recording device.
    1. The recording device shall be operated continuously and be maintained in a properly functioning manner. Circular charts shall not overlap.  Electronic records that comply with the applicable provisions of Appendix H., IV and V, with or without hard copy, may be used in place of temperature-recording records. 
    2. The temperature-recording device shall be verified every six (6) months and documented in a manner acceptable to the Regulatory Agency using an accurate (+/- 1oC (2oF)) thermometer that has been calibrated by atraceable standard thermometer, within the past six (6) months, with the results and date recorded and the thermometer being properly identified, or by using a traceable standard thermometer that has been calibrated within the last year.
    3. Temperature-recording records shall be maintained on the premises for a period of a minimum of six (6) months and are available for review by the Regulatory Agency.  Except that, the electronic storage of required temperature records, with or without hard copy, shall be acceptable, provided the computer and computer generated temperature records are readily available for review by the Regulatory Agency.
    4. The temperature-recording device should be installed in an area convenient to the milk storage tank and acceptable to the Regulatory Agency.
    5. The temperature-recording device sensor shall be located to permit the registering of the temperature of the contents when the tank contains no more than twenty percent (20%) of its calibrated capacity.
    6. The temperature-recording device shall comply with the current technical specifications for tank recording thermometers.
    7. A temperature-recording device and/or any other device that meets the intent of these Administrative Procedures and technical specifications and is acceptable to the Regulatory Agency can be used to monitor/record the bulk tank temperature.
    8. The temperature-recording records shall properly identify the producer, date installed, tank or silo identification, if more than one (1), and signature or initials of the person installing the record.”

How would a Sanitation Rating Officer (SRO) or a FDA Regional Milk Specialist (RMS) determine during a rating or check rating, respectively, that the farm bulk milk tank(s) located on the dairy farm was manufactured after January 1, 2000; therefore, requiring an approved temperature-recording device in accordance with Item 18r-Raw Milk Cooling of the PMO?

Neither the 3-A Sanitary Standard for Farm Milk Cooling and Holding Tanks (13-11) nor the 3-A Sanitary Standard for Farm Milk Storage Tanks (30-02) contain provisions that would require that the manufacturing date be noted on the information plate (cooler data tag), which is attached to the farm bulk milk tank.  

There are currently only four (4) farm bulk milk tank manufacturers who have 3-A Sanitary Standard 13-11 authorization (Bou Matic, GEA (Surge), Mueller and DeLaval (manufactured by Mueller since late 2004) and only one (1) manufacturer who has 3-A Sanitary Standard 30-02 authorization (Mueller).

  • Bou Matic does not identify the manufacturing date but does put a Serial Number on the information plate (cooler data tag). Serial Numbers are continuous and the first (1st) farm bulk milk tank manufactured in 2000 has a Serial Number of 35641G; therefore, any farm bulk milk tank having this Serial Number or a Serial Number higher than this number would be a farm bulk milk tank that was manufactured after January 1, 2000.

    For Example: 35666G would indicate a farm bulk milk tank that was manufactured after January 1, 2000 as it is a higher number than 35641G.

  • GEA (Surge) identifies the year and month of manufacturing within the farm bulk milk tank Serial Number identified on the information plate (cooler data tag) as cited below:

    From 1987 through 2000, GEA (Surge) farm bulk milk tanks were manufactured by Paul Mueller Co. and the Serial Numbers consisted of six (6) digits: XXXXXX.

    For Example: 000506; whereas, the first two (2) digits indicate the year of manufacture; the next two (2) digits indicate the month of manufacture; and the last two (2) digits indicate the number of farm bulk milk tanks built that month.  As displayed in this example “000506”, “00” would indicate that this farm bulk milk tank was manufactured in the year 2000, 05” would indicate the month of May and “06” would indicate this was the sixth (6th) farm bulk milk tank manufactured in May 2000.  The months January through December utilize the digits 01 through 12, respectively.   

    Beginning in 2001, GEA (Surge) manufactured their own farm bulk milk tanks in their Galesville, WI facility and the Serial Numbers since 2001 consist of 8 (eight) letters/digits: WSXXXXXX.

    For Example: WS020804; whereas, the first two (2) letters are WS, which designates that the farm bulk milk tank was manufactured in their own facility; the first two (2) digits indicate the year of manufacture; the next two (2) digits indicate the month of manufacture; and the final two (2) digits indicate the number of farm bulk milk tanks built that month.  As displayed in this example “WS020804”, “02” would indicate that this farm bulk milk tank was manufactured in the year 2002, “08” would indicate the month of August, and “04” would indicate this was the fourth (4th) farm bulk milk tank manufactured in August 2002.  The months January through December utilize the digits 01 through 12, respectively.   

  • Mueller identifies the manufacturing date by including a Serial Number on the information plate (cooler data tag) located on the rear head of the farm bulk milk tank and the Serial Number can also be found stamped on the outer flange beneath the man way (manhole) gasket in the man way (manhole) opening. 

     Mueller information plate on farm bulk milk  tank containing manufactured date, cooling performance, and serial number.

    Serial Numbers for farm bulk milk tanks manufactured from the 1990’s through 2009 were nine (9) letters/digits with a hyphen between the sixth (6th) and seventh (7th) letter/digit: XXXXXX-XXX.

    For Example: 42797A-00A; whereas, the first six (6) digits were computer generated serial numbers/letters. The two (2) digits after the hyphen were the year of manufacture and the third (3rd) digit (letter) indicated the month of manufacture. As displayed in this example “42797A-00A”, “00A” would indicate that this farm bulk milk tank was manufactured in the year 2000, and the “A” indicates the month of January.  The months January through December utilize the letters A through L, respectively.   

    Current Serial Numbers for farm bulk milk tanks manufactured beginning in 2010 are six (6) digits:  XXXXXX. 

    For Example: 122421; whereas, the first two (2) digits indicate the year of manufacture.  As displayed in this example “122421”, “12” would indicate that this farm bulk milk tank was manufactured in the year 2012.  The last four (4) digits are random from a computer generated serializing system.   

  • DeLaval, manufactured in Monterrey, Mexico: Farm bulk milk tanks were produced by DeLaval in their Monterrey, Mexico factory from 2000 through late 2004. The first shipments to the United States of farm bulk milk tanks manufactured in Mexico did not begin until 2001.

    Name plates for these farm bulk milk tanks should be located above the milk outlet valve on the front head of the farm bulk milk tank.  On some name plates the manufacturing year may be identified directly under “Manufacturing Year”.

    Serial Numbers for farm bulk milk tanks manufactured in Mexico and shipped into the Unites States by DeLaval from 2001 through late 2004 were four (4) letters, a space, plus 50000: XXXX 50000.  The four (4) letters are related to internal production.  Serial Numbers are continuous and the first (1st) farm bulk milk tank manufactured in 2000 and subsequently shipped in 2001 to the United States had a Serial Number of XXXX 50000; therefore, any farm bulk milk tank having this Serial Number or a Serial Number higher than this number would be a farm bulk milk tank that was manufactured after January 1, 2000 and shipped into the United States after January 1, 2001 until late 2004.  

    For Example: XXXX 50270As displayed in this example “XXXX 50270”, “50270” would indicate that this farm bulk milk tank was manufactured after January 1, 2000 as it is a higher number than XXXX 50000. 

    DeLaval, manufactured by Paul Mueller Company since late 2004, Mueller identifies the manufacturing date by including a Serial Number on the information plate (cooler data tag) located on the rear head of the farm bulk milk tank and the Serial Number can also be found stamped on the outer flange beneath the man way (manhole) gasket in the man way (manhole) opening. 

     DeLaval  information plate on farm bulk milk tank containing manufactured date, cooling performance, and serial number.

    Current Serial Numbers for farm bulk milk tanks manufactured since late 2004 are seven (7) letters/digits:  XXXXXXX.

    For Example: D120143; whereas, the first (1st) letter is always the letter “D” for DeLaval; the first (1st) two (2) digits following the letter “D” indicate the year of manufacture and the last four (4) digits are random from a computer generated serializing system.  As displayed in this example “D120143”, “12” would indicate that this farm bulk milk tank was manufactured in the year 2012

NOTE: The above information is specific to the four (4) manufacturers who participate in the 3-A Sanitary Standards program. This M-I does not provide any information on farm bulk milk tank manufacturers who do not participate in the 3-A Sanitary Standards program. We are requesting Regulatory Agency personnel, SROs and RMSs to look for such information from farm bulk milk tank manufacturers who do not participate in the 3-A Sanitary Standards program when they are conducting farm inspections, ratings, and check ratings, respectively, and provide that information back to your RMS or MST, respectively, for any other farm bulk milk tank manufacturers.

Based on discussion with all four (4) of the above identified farm bulk milk tank manufactures, it appears that all would be in favor of revising the applicable 3-A Sanitary Standards so that the date of manufacture would be required to be included on the information plate (cooler data tag).  FDA will be working with the manufacturers to begin this 3-A Sanitary Standards amendment process.

An electronic version of this memorandum is available for distribution to Regional Milk Specialists, State Milk Regulatory Agencies and State Rating Officers in your region. The electronic version should be widely distributed to representatives of the dairy industry and other interested parties and will also be available on the FDA Web Site at http://www.fda.gov at a later date.

If you would like an electronic version of this document prior to it being available on the FDA Web Site, please e-mail your request to robert.hennes@fda.hhs.gov.
 

/s/

Randy Elsberry,
FDA Regional Dairy Specialist 
Pacific Region

/s/

Robert F. Hennes, RS, MPH
CAPT U.S. Public Health Service
Dairy and Egg Branch