Dec. 1952 with Cleanecl-In-Place PYREX ®Brand
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VOLUME 15 NO. 6 r~ .... ,, .. ,4- o.J:~t-., Nov. - Dec. 1952 with cleanecl-in-place PYREX ®brand QO [!)@QDIT)[1[3 Q l1®l!J@~~~ Glass Pipe Eliminates corrosion problems-No sanitary piping material has the corretsi~n resistance of PYREX brand glass No. 7740. Clean ing with add, alkaline or chlorine solutions cannot corrode this glass pipe, discolor or impart off-flavors to the milk. In fact, this is the recommended method of cleaning glass pipe. Cuts cleaning time in half-Dairies using PYREX pipe' find that it cuts cleaning time by at least 50%. That's because you can clean it in place ••. requires no costly takedown and hand scrubbing. Bacterial counts consistently run lower than with takedown pipe. i Lets you see that the lines are clean-The transparency of glass i enables you to visually inspect the lines-see for yourself that they are clean. You can also keep an eye on milk flow. And trans J~ parent glass pipe dresses up your plant-impresses visitors. What's more, PYREX brand "Double-Tough" glass pipe is cl~ exceptionally resistant to both physical and thermal shock. .. ! Easy to install and requiring no maintenance other than clean ing, PYREX pipe and PYREX holding tubes are available in sizes from lY:z" to 6". For full information, contact your nearest Cherry-Burrell or Creamery Package representative. TRANSPARENT PYREX brand glass holding tubes let you visually check far underholding ••• and see the results of timing adjustments while they are being made. Now ap· proved by milk sanitarians. CORNING GLASS WORKS, CORNING, N.Y. ~ ~ ~Ve (j'.&<J<I Visit the new Corning Glass Center (!) i RAPIO·FLO TRADE MARK OF JOHNSON & JOHNSON *;td.u-8tJ.ded FILTER DISKS The safest, most retentive single-service milk filter disks ob tainable, preferred by most dairy farmers coast-to-coast. Available either without gauze or gauze--faced (to fit the needs of strainers in general use). All Rapid-Flo Filter Disks are FIBRE-BONDED, the exclusive Johnson & Johnson process that makes Rapid Flo Filter Disks safer, more retentive and efficient, provid ing an even more reliable Farm Sediment Check-Up. THE RAPID·FLO FARM SEDIMENT CHECK-UP Your daily safeguard for Better Milk Quality and protec tion against possible loss of milk, endorsed by leading dairy authorities. 1 • After filtering each can of milk (I 0 gallons or less) carefully re move the used filter disk from the strainer and place it on a card board to dry. 2. When it is dry, examine the disk closely. Identify the sediment or extraneous matter, in order to determine where it I came from, so you I, ~ can prevent any more getting into milk in the future. I !~ ' WHEN YOUR BUSINESS IS IN ~~;pte ••. • ... why not let Cherry-Burrell help you keep it that way? With Cherry-Burrell sanitary pumps, tubing, valves and fittings handling your product, there's no chance to pick up undesirable flavors ... all the chance in the world to protect your product's purity; your customers; your business. ~ cHEcK:CifE~RY-BURRELL. 'V' FOR SANITARY PUMPS · Meet 3A Sanitary Standards Flexible design-discharge can be set at any angle Full suction and discharge size Easy to dismantle and clean Totally enclosed motors Removable sanitary rotary carbon Seal Available in portable models Flexfla Pump-six sizes to 240 G.P.M. Blowout-proof gasketing Motor sizes-1/4 h.p. to 10 h.p. FOR SANITARY TUBING, VALVES AND FITTINGS Complete Line-Available in stain less steel or famous DiaMonD Metal (Nickel-Alloy) Maximum Interchangeability Designed to meet National 3A Standards for Sanitary Fittings Ask your Cherry-Burrell Representative for complete informa- lion about sanitary stainless pumps, fittings and tubing. Or write your Cherry-Burrell Branch or Associate Distributor for l free bulletins. RRY-BtiRRELL CoRPORATION I 427 W. Randolph Street, Chicago 6, Ill. Equipment and Supplies lor Industrial and food Processing FACTORIES, WAREHOUSES, BRANCHES, OFF!CES IOR DISTRIBUTORS AT YOUR SERVICE IN 56 CITIES II OFFICERS Journal of President, H. J. BARNUM Denver, Colo. President-Elect, JoHN D. FAULKNER Washington, D. C. MILK and FOOD First Vice-President, I. E. PARKIN State College, Pa. Second Vice-Pres., IvAN VAN NoRTWICK Laurence, Kansas Secretary-Treasurer, H. H. WILKOWSKE TECHNOLOGYJ l Gainesville, Fla. Auditors: CLIFFORD J. GosLEE INCLUDING MILK AND FOOD SANITATION Hartford, Conn. CHARL'Es HoLCOMBE Official Publication Minneapolis, Minn. Executive-Secretary, H. · L. THoMAssoN Intematjonal Association of Milk and Food Sanitarians, -Inc. Shelbyville, Ind. Board of Directors VOL. 15 NOV.-DEC. NO.6 H. J, BARNUM H. H. WILKOWSKE JoHN FAULKNER H. L. THOMASSON I. E. PARKIN K. G. WECKEL Editorials CONTENTS Page IvAN VAN NoRTWICK Publication Board Status of Dur Association Past, Present, Future ................... 249 H. L. THOMASSON J, H. SHRADER Recognition and' A~ard ............................................................. .. 250 H. H,' WILKOWSKE ~ ~- t Editors Awards 251 H. L. THOMASSON, Managing Editor Box 286, Shelbyville, Ind. '39th Annual Meeting ............................................................................ .. 253 DR. J, H. SHRADER, Editor 23 East Elm Ave., Wollaston 70, Mass. Announcement on Award ..................................................................... 257 Associate Editors C. A. ABELE ..... .... .... .... .. ..... Chicago, Ill. Committee Reports ............................................................................. 258 F. W. BARBER ................ Oakdale, N. Y. F. C. BAsELT ................ New York, N. Y. A. E. BERRY ................ Toronto, Canada SA Sanitary Standard for Return Tubular Heat Exchangers for P. B. BnooKs ............ Montgomery, N. Y. Use with Milk and Milk Products ............................................ · 277 F. W. FABIAN ........ East Lansing, Mich. C. R. FELLERS .. .. .... .... .. Amherst, Mass. "Inhibition of Streptococcus lactis by a Quaternary Ammonium A. W. FucHs .......... Washington, D. C. J. G. HARDENBERGH ............ Chicllf'O, Ill. Compound in Cheese Milk R. W. HART ................ Kansas City, Mo. .. .................................... Janet C. Curry and Franklin Barber 278 M. D. HowLETT ........ Los Angeles, Cal. C. K. JoHNS .................. Ottawa, Canada J, A. KEENAN ................ New York, N. Y. The Effect of Time and Temperature after the Addition of Folin M. E. McDoNALD .... Sacramento, Calif. Reagent in the Determination of Phosphatase J. C. OLsoN, JR., ............ St. Paul, Minn. E. H: PARFITT .................... Chicago, Ill. .............................. Barbara C. Lang and Omer C. Sieverding 282 G. W. PuTNAM .................... Chicago, Ill. J, L. RowLAND ........ Jefferson City, Mo. Antibac-A New Type of Chlorine Sanitizer W. D. TIEDEMAN ........ Ann Arbor, Mich. .... ........... ............. ...... Lesl-ie R. Bacon and Alfred L. Sotier 285 K. G. WEcKEL ................ Madison, Wise. G. H. WILSTER ................ Corvallis, Ore. Farm Tank Holding of Milk with Tank Truck Pick-up The Journal of )1i!k and Food Technology .......................................................................... C. B. A. Bryant 294 (induding ::\Iilk and Food Sanitation) is issued bimonthly beginning with the January nnmber. Each volume comprises six numbers. Publishe<l Association Ne'rs 300 by the International Associaticm of :\!ilk and Food Sanitarians, Inc., with executive offices I of the Association at Ritz Building, 12% East Broadway, P. 0, Box 286, Shelbyville, Ind. Index to Volume 15 301 ~• Entered as second class matter at the Post Office at ShelbyYille, Ind., )!arch 1952, under the Act <>f )!arch 3, 1879. Index to Advertisers XI EDITORIAL OFFICES: J. H. Shrader, Editor, 23 E. Elm Ave., 'Vollaston 70,. :\Iass; H. L. Thom asson, Managimg Editor, P. 0. Box 286, Shelby ville, Ind. ders for single copi~s, etc., should be addreHMcd ::\IE~IBERSHIP DuEs: :\Iembership in the INTER to H. L. Tlwmasson (address above). NATIO~AL ASSOCIATION OF ~!ILK AND ·JroOD _ Manuscripts: ·Correspondence regarding manu- Subscription Rates: One Volume per year SANI1'AIUANs .. INc ... is $5.00 per year, which in scripts and other reading material should be clltdes annual subscription to the JoURNAL OF Iudiviclual non~members, Gove-rnmental and Com addressed t<> the Editor, J. H. Shrader (address l!JJ.I( A:XU l!'OOD l'ECHXUI,OGY, (in('}nding :\ln,K ab!1Ve). merciul Organization subscription, 1 yr ..... $ti.50 Public, Educational and Institutional AND FOOD SANITATION). All correspondence Bo<>klet entitled "JMFT Style-book" can be Libraries, 1 yr ............................................. *3.00 regarding membership, remittances for dues, obtained from the Editor for the use of con Single Copy ..................... ; .................................. 1.00 failure to receive copies of the JOURNAL .. changes 'trlbutors of papers. of address, and · other such matters should be Orders for Reprimts: All <>rders for reprints addressed t<> the Ewecutive Secretary <>f the Business Matters: Correspondence regarding sh<>uld be sent t<> the executive office <>f tho .Ass{)ciation, .ll. L. Thomasson, Box 286, Shelby business matters, advertising, subcriptions, or- Ass<>ciatlon, P. 0. Box 286, Shelbyville, Ind. ville, Indiana. CoPYRIGHT, 1952, INTERNATIONAL AssociATION oF MILK AND FooD SANITARIANs ~% "I like the ~ ' perfe(f ./"' re-seal it makes" \ I /. ·~ ~;, I ••• and they both-z3 Q tlike ~.l C{1~ the way DACRO P-38 protects ' the milk they buy! Hotisewives all over the country ·like the many advantages of Dacro Protected milk. Dairy operators, too, find that