California Code of Regulations › Title 3 - Food and Agriculture › Division 2 - Animal Industry › Chapter 1 - Dairies › Article 19 - Operators of Pasteurization Equipment › Section 584 - Holding Method

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
				  Where holding method of pasteurization is used and the product heated above 161
				  degrees F., the holding time may be reduced by one minute for each degree of
				  temperature above 145 degrees F., provided the product so treated will
				  successfully pass the phosphatase test for pasteurization as prescribed in the
				  current edition of Standard Methods for the Examination of Dairy
				  Products.
(b) Each holder vat must
				  be equipped and operated with a satisfactory means of keeping the atmosphere in
				  the vat above the milk or milk products at a temperature of t least 5 degrees
				  F. higher than the required pasteurization temperature of the product during
				  the heating and holding period. If steam is admitted into the vat, the steam
				  line must be provided with a trap properly designed to avoid the discharge of
				  water into the product. An approved sanitary type air temperature indicating
				  thermometer must be installed on each vat. The air temperature thermometer must
				  have a scale range of 130 degrees F. to 210 degrees F. Temperature ranges above
				  or below are permissible. It must be accurate within 1 degree F. plus or minus,
				  through the specified scale range; the smallest scale division must not be more
				  than 2 degrees F. and not more than 16 degrees per inch of scale.
(c) Recording thermometer charts made for
				  products pasteurized by the holding method must show the end point of the
				  holding period by some distinguishing mark which must be made before any of the
				  product is removed from the vat. A notation must be placed on the recording
				  chart showing the temperature of the air space as indicated by the air space
				  thermometer for each vat of product pasteurized.
(d) Flush-type outlet valves are required on
				  pasteurizing vats.
(e)
				  Installations made after the effective date of this provision shall comply with
				  the following: If the interior lining of the vat is flared at the valve
				  opening, then the diameter at the large end of the flare shall be at least
				  equal to the depth of the flare, plus the diameter of the opening. The distance
				  from the small end of the flare to the valve shutoff point or the distance from
				  the interior lining to valve shutoff point if no flare is used shall not exceed
				  the diameter of the opening.
(f)
				  Indicating thermometers shall be accurate within 0.5 degrees F., plus or minus,
				  within the pasteurization temperature range, and shall have a scale range of
				  130 degrees to 212 degrees F., extension either side permissive, protected
				  against damage at 220 degrees F. The smallest scale division shall not be more
				  than 1 degree F. between 130 degrees and 150 degrees F. The magnification of
				  the mercury column shall be to apparent width of not less than one-sixteenth
				  inch ( 
				  1/16 ). Spuds
				  of indicating thermometers shall be at the level of the spud of the recording
				  thermometer.
(g) Recording
				  thermometers and charts not exempt by subsection (e) of Section
				  583 of the Administrative Code must
				  comply with the following specifications:
Temperature Accuracy
. Within 1 degree F.,
					 plus or minus, between 142 degrees and 145 degrees.
Time Accuracy
. The recorded elapsed time
					 as indicated by the chart rotation must not exceed the time elapsed as
					 indicated by a correct timepiece over a period of at last 30 minutes.
The smallest temperature scale division must not be greater
					 than one degree between 140 degrees and 145 degrees F.
The width of the scale division between 142 degrees and 145
					 degrees F. must not be less than one-sixteenth of an inch.
The radial lines that indicate the time must not be closer
					 than one-fourth inch between 142 degrees and 145 degrees F. and represent not
					 more than 10 minutes.
1. New
					 section filed 8-31-51 designated to be effective 10-1-51 (Register 25, No.
					 4).
2. Amendment filed 9-21-56; effective thirtieth day thereafter
					 (Register 56, No. 18).
3. Amendment filed 2-23-62; effective
					 thirtieth day thereafter (Register 62, No. 4).