Presto 7B-CA16 Installation instructions

1
How to Use and Care for Your Canner
(Models 7B-CA16, 21B-CA21,
01/CA16H-CA16H,
01/CA21H-CA21H, 01/CAA12H,
and 01/CAA20H)
This is a Listed appliance. The following Important Safeguards are recommended by most portable appliance manufacturers.
IMPORTANT SAFEGUARDS
To reduce the risk of personal injury or property damage, basic safety precautions should always be followed, including the following:
1. Read all instructions. Improper use may result in bodily injury or property damage.
2. Always check the vent pipe before use. Hold cover up to light and look through vent pipe to be certain it is clear.
3. Always check the automatic air vent to be sure it moves freely before use.
 4. DonotllPressureCannerover⅔fullwhenusingforpressurecooking.Forsoup,rice,anddriedvegetableswhichexpand
duringcooking,donotllcannerover½full.
 5. Donotpressurecookapplesauce,cranberries,rhubarb,pearlbarley,oatmealorothercereals,splitpeas,soupmixescontaining
dried vegetables, or foods such as noodles, macaroni, or spaghetti. These foods tend to foam, froth, and sputter and may block
the vent pipe and automatic air vent.
 6. Thisappliancecooksunderpressure.Improperusemayresultinscaldinginjury.MakecertainPressureCannerisproperly
closed before operating; cover handles must be directly above the body handles. See “How To Use” instructions.
 7. ExtremecautionmustbeusedwhenmovingaPressureCannercontaininghotliquids.Donottouchhotsurfaces.Usehandles
or knobs.
 8. DonotplacethePressureCannerorattempttopressurecaninaheatedoven.
 9. DonotopenCanneruntilinternalpressurehasbeencompletelyreduced,andtheautomaticairventhasdropped.See“HowTo
Use” instructions.
10. CAUTION: To ensure safe operation and satisfactory performance, replace the automatic air vent every time you replace the
sealingringorsoonerifitbecomeshardordeformed.UseonlygenuinePrestoreplacement parts.
 11. ClosesupervisionisnecessarywhenthePressureCannerisusednearchildren.Itisnotrecommendedthatchildrenusethe
PressureCanner.
 12. DonotusethisPressureCannerforotherthanintendeduse.
 13. DonotusethisPressureCannerforpressurefryingwithoil.
SAVE THESE INSTRUCTIONS
THISPRODUCTISFORHOUSEHOLDUSEONLY.

2
Pressure Canning In Your PrestoPressure Canner
YourPressureCannerisaspecial,largecapacitypressurepandesignedforhomecanningawidevarietyoffruits,vegetables,meats,
poultry, and seafood.
TheCannerusespressuretoachievethehightemperaturesrequiredforsafelyprocessingfoodswhilecanning.TheUnitedStatesDepart-
mentofAgriculture,Washington,D.C.,recommendsthePressureCannerastheonlysafemethodforcanninglow-acidfoods—vegetables,
meats, poultry, and seafood.
Waterboilsat212°F(exceptinmountainousregions)andthistemperatureissufcienttoarrestordestroysomespoilageorganisms—
enzymes,molds,andyeast.However,atemperatureof240°Foraboveisneededtodestroyharmfulbacteria,especiallyClostridium
botulinum.
Inpressurecanning,someofthewaterintheCannerisconvertedintosteam.Afterallairisexhaustedthroughtheventpipeandautomatic
airventinthecover,thepressureregulatorisplacedontheventpipe.Expandingsteamraisestheautomaticairventandthencreates
pressurewithintheCanner.Asthepressureincreases,thetemperatureincreases:5poundspressure–228°F;10poundspressure–240°F;
15poundspressure–250°F.
As a safeguard against using canned foods which may be affected with spoilage that is not readily detected, it is necessary to boil all
low-acidfoods(allmeats,poultry,seafood,andvegetables)todetectanyodorsorfoamingfromspoilage.Ifthefooddoesnotsmellor
look right, discard it without tasting. Many times odors that cannot be detected in the cold product will become evident while heating.
To detect spoilage at altitudes below 1,000 feet, boil foods for 10 minutes. At altitudes above 1,000 feet, add an additional minute of
boiling time for each additional 1,000 feet.
ItisnecessarytofollowafewspecialrulesinusingandcaringforyourPressureCanner.Becomefamiliarwiththevariouspartsas
showninthediagramsandreadthe“HowtoUse”sectionbeforeusingforthersttime.UseonlygenuinePrestoreplacement parts.
PressureDial
Gauge
PressureDial
Gauge
Canning
Rack
Vent
Pipe
Body
Handle
Cover
Handle
Automatic
Air Vent
Pressure
Regulator
Body
Handle
Cover
Handle
Canning
Rack
Vent
Pipe
Body
Handle
Cover
Handle
Automatic
Air Vent
Pressure
Regulator
Body
Handle
Cover
Handle

3
Introduction to Parts
1. PRESSURE DIAL GAUGE
Thepressuredialgaugeregisterspressureinbothpounds(outerscale)andmetricmeasure(innerscale).The
pointermovesaroundthedialindicatingthepressurewithintheunit.Beforeeachcanningseason,checkthe
pressure dial gauge for accuracy.
2. PRESSURE REGULATOR
The pressure regulator is a solid one-piece unit. Accurate pressure readings are registered on the pressure
dial gauge and can be controlled and maintained by adjusting heat settings.
3. VENT PIPE
Thepressureregulatortsovertheventpipeandallowsexcesspressuretobereleased.
4. AUTOMATIC AIR VENT
Theautomaticairvent,locatedinthecenteroftheCannercover,doesthefollowing:(1)Automatically
ventsorexhaustsairfromtheCanner;(2)Automaticallyreleasesexcesssteamincasetheventpipebecomes
cloggedandpressurecannotreleasenormally:(3)Actsasananti-vacuumvalve,preventingthelossofjuices
fromfoodafterpressureiscompletelyreduced;(4)Actsasavisualindicationofpressureinthecanner.
5. SEALING RING
ThesealingringtsintotheCannercoverandformsapressure-tightsealbetweenthecoverandbodydur-
ing canning and cooking.
6. CANNING RACK
ThecanningrackisplacedinthebottomoftheCannertoholdjarsoffthebottomoftheunitwhilecanning.
JarsmaybreakduringthecanningprocessifplacesonthebottomoftheCanner.Thecanningrackshould
always be used when canning.
Use only genuine Prestoreplacement parts with your Prestopressure canner.
How To Use Your PrestoPressure Canner
IMPORTANT: Read carefully. Do not attempt to use your Canner before reading these instructions.
Followthesestep-by-stepinstructionsforcanning.Preparefoodaccordingtothedirectionsinspecicrecipe.
1. Therststepinpressurecanningistoassemblethecanningequipment.BesureyourCanneristhoroughlycleanedandworking
properly.Beforeeachcanningseason,checkthepressuredialgaugeforaccuracy.Alsocheckthesealingringandautomaticairvent.
Replacethesepartswhentheybecomehard,unusuallysoft,ordeformed.(See“GeneralMaintenance”,page5.)
2. Checkmasonjarsfornicks,cracks,andsharpedges.Checkbandsfordentsorrust.Useonlyjars,lids,andbandsinperfectcondition
so an airtight seal may be obtained.
 Washandrinsejars,lids,andbands.Pourhotwaterintojarsandsetasideuntilneeded.Followclosuremanufacturer’sdirectionsfor
bands and lids.
3. Forrecipeinformation,seeyourbooklettitled“Recipes and Helpful Hints for PrestoPressure Canners”.Selectfresh,rmfood.
Sortfoodaccordingtosize.Cleanfoodthoroughly.Prepareaccordingtorecipe.Fillhotmasonjarspromptlywithfoodandliquid
totherecommendedlevel.Allow½-inchheadspaceforfruits.Allvegetables,meat,poultry,andseafoodrequire1-inchheadspace
duetoexpansionduringprocessing.Workoutairbubbleswithacleanspatula.Wipesealingedgecleanwithadampcloth.
 Adjustlidsandbandsaccordingtoclosuremanufacturer’sdirections.
4. PlaceCanneronalevelburner.Useonatiltedburnermayinterferewiththeoperationofthepressureregulator.Placethreequartsof
boilingwater,canningrack,andjarsinroomtemperatureCanner.Pouringwaterintoadry,overheatedCannermaycrackthemetal.
TopreventwaterstainsinCanneroronjars,add2tablespoonswhitevinegartowaterinCanner.Placejarsoncanningrack.Always
usecanningrack.JarsmaybreakifsetdirectlyonbottomofCanner.
5. LookthroughtheventpipetobecertainitisopenbeforeplacingcoveronCanner.Tocleantheventpipe,drawapipecleaneror
small brush through the opening.
DO NOT OPERATE UNTIL YOU
HAVE READ INSTRUCTIONS
psi kg/cm2
.5 1
1.5
10
15
20
5
0
C
A
U
T
I
O
N

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6. PlacecoveronCannerasfollows:
Models 7B-CA16, 21B-CA21, 01/CA16H-CA16H, 01/CA21H-CA21H: Place cover on Canner
aligning the arrow on the lid with the word “open” on the base and turn clockwise until arrow points
to“closed”(Fig.A).
Models 01/CAA12H, 01/CAA20H:PlacecoveronCanneraligningthearrowonthelidwiththemark
onthebodyhandle.Pressdownonthecoverhandlestocompressthesealingring.Turnclockwise
until cover handles are directly above body handles.
 DonotbuildpressureinCanneruntilcoverhandlesaredirectlyaboveandbetweenlinesofbody
handles.Ifthecoverisdifculttoopenorclose,useapastrybrushorapieceofpapertowelingto
applyalightcoatingofcookingoiltotheundersideofthelugsontheCannerbody.Donotlubricate
the sealing ring.
7. ExhaustairfromtheCannerandjarsbyadjustingheattoarelativelyhighsettingtoobtainasteady
owofsteamfromtheventpipe(Fig.B).Reduceheartomaintainamoderatesteamow.Allow
steamtoowfor7to10minutes.
8. Placepressureregulatoronventpipe(Fig.C).
9. In a few minutes the automatic air vent will rise and seal the canner. If the automatic air vent does not
seal, touch the metal plunger gently with a spoon or knife. It is possible that foreign material in the
opening may have delayed the plunger from sealing readily.
10.HeatCannerusingarelativelyhighheatsettingonmostrangeburners.Processingtimebeginswhen
thepressuredialgaugeregisters thecorrectpressure(Fig.D).Adjusttheheattomaintaincorrect
pounds of pressure on the pressure dial gauge.
 NOTE:Theformationofasmallamountofmoistureunderthepressureregulatorisnormalwhen
canningrstbegins.Thiscondensationisaresultofthetemperatureofthepressureregulatorbeing
lowerthantherestoftheCanner.Ifexcesscondensationcontinues,theventpipemaybelooseand
should be tightened with an adjustable wrench.
11. Atendofprocessingtime,turnburnertooffandremoveCanner.Letpressuredropofitsownaccord.
Donotquick-cool.IfthepressureintheCannerisreducedmorerapidlythanthepressureinthejars,
thejarsmaybreak.Pressureiscompletelyreducedwhentheautomaticairventhasdroppedandno
steam escapes when the pressure regulator is tilted.
12. Do not remove the pressure regulator until pressure is completely reduced and the automatic air vent
hasdropped.Removepressureregulatorfromventpipe(Fig.E).LetCannercool10minutes.Always
remove pressure regulator before opening the cover.
13.Toremovethecover,turncounterclockwiseuntilcoverhitsstop.Coverhandleswillbebeyondthe
body handles. If cover seems to stick or is hard to turn, do not force it open. Sticking may indicate
thatthereisstillpressureinsidetheCanner.Ifindoubtaboutpressurebeingcompletelyreduced,let
theCannerstanduntilcoolbeforeremovingthecover.
14.LifttheCannercovertowardyoutokeepsteamawayfromyouwhenopening(Fig.F).
15.RemovejarsfromCanner.
Cleaning
1. TheoutsidesurfaceofpolishedaluminumCannersmaybekeptbrightandshinybycleaningwith
a good silver polish or simply by washing with soap and water. Iron, various minerals in water, and
foodsmaydarkentheinsideoftheCannerbutthisdiscolorationwillinnowayaffectfoodcooked.
Thesestainsareharmlessandmayberemovedbyusingasolutionofwaterandcreamoftartar.For
eachquartofwater,useonetablespooncreamoftartar.PourenoughsolutionintotheCannertocoverthediscoloration(donotll
over⅔full),thenclosecoversecurely.Placepressureregulatoronventpipeandheatuntil15poundspressureisreached.Remove
Cannerfromheat;allowCannertostandtwotothreehours.Removepressureregulator,thenremovecoverandemptycontents.
Scour thoroughly with a soap impregnated steel wool cleaning pad; wash, rinse, and dry.
2. EachtimetheCanneriswashed,removethesealingringandwashinwarm,sudsywater,rinse,dry,andreplaceincover.
3. The automatic air vent can be easily removed for cleaning by pushing it through the opening from the top of the cover. After clean-
ing, insert by pushing automatic air vent into the opening from the underside of the cover. When in place the slightly rounded face
oftheautomaticairventwillbeexposedontheoutsideofthecover.Afterprolongeduse,theautomaticairventmaybecomehard
Fig. A
Fig. B
Fig. C
Fig. D
Fig. E
Fig. F

5
or deformed. Therefore it will not operate properly and should be replaced. When replacing the sealing ring, replace the automatic
airvent.UseonlygenuinePrestoreplacement parts.
 Iftheautomaticairventiseverforcedoutofitscoveropeningduetoexcesspressurewhilecanning
orcooking,itisimportanttohavetheCannerproperlyinspectedbeforefurtheruse.Donotattemptto
replacetheautomaticairvent.SendtheentireCannertothePrestoFactoryServiceDepartment.
4. Besuretheventpipeisopenbeforeeachuse.Cleantheventpipewithasmallbrushorpipecleaner
(Fig.G).
5. WhenyourPressureCannerisnotinuse,invertthecoverontheCannerbodyandstoreinadryplace.
StoringtheCannerwiththecoverlockedonmaycauseunpleasantodorsandmaydeformthesealing
ring.
General Maintenance
1. UseonlygenuinePrestoreplacement parts.
2. CAUTION: In time, the sealing ring may shrink and the automatic air vent may become hard and deformed or soft and sticky.
Exposuretohighheat,suchasawarmburneroroventop,willcausethesepartstodeteriorate.Whenthishappens,replacethesealing
ringandautomaticairvent.Beforeinsertinganewsealingring,cleanthesealingringgroovewithabrush.Toensuresafeoperation
ofyourPressureCanner,itisrecommendedtheautomaticairventbereplacedwheneverthesealingringisreplaced.Failuretofol-
low these instructions could result in bodily injury or property damage.
3. IftheCannerbodyorcoverhandlesbecomeloose,tightenwithascrewdriver.
4. IfleakageofmoistureorsteamdevelopswhileusingyourCanner,checkthefollowingpossiblecauses:
♦ Theformationofasmallamountofmoistureunderthepressureregulatorisnormalwhencanningrstbegins.Thiscondensation
isaresultofthetemperatureofthepressureregulatorbeinglowerthantherestoftheCanner.Ifexcesscondensationcontinues,
the vent pipe may be loose and should be tightened with an adjustable wrench.
♦ Leakagebetweenthecoverandbodyisusuallycausedbyshrinkageofthesealingringafterprolongeduse.Replacethesealing
ring and automatic air vent.
♦A small amount of steam or moisture may be visible around the automatic air vent as canning begins. This will stop when the
automatic air vent seals. If leakage continues, clean or replace the automatic air vent.
 DonotoperateyourPressureCannerwithcontinualleakage.Iftheabovestepsdonotcorrecttheproblem,returntheentireunitto
thePrestoFactoryServiceDepartment.
5. Thedialgaugeisadelicateinstrumentwhichmustbehandledwithcare.Priortoeachcanningseasonorbeforethenextuse,ifthe
cover has been submerged in water, dropped, the gauge glass has broken or fallen out, any parts are rusty, the pointer is not in the
“0” block, or if for any reason you believe the gauge may not be accurate, have the gauge checked for accuracy by your local family
livingagentorextensionhomeeconomist.Ifyouareunabletohaveyourdialgaugecheckedlocally,carefullyremovethegaugeand
sendittothePrestoConsumerServiceDepartment(seepage6).Anaccuratedialgaugeisnecessarytohelppreventfoodspoilage
and possible food poisoning.
6. IfthePressureCannerbecomesdifculttoopenorcloseandthesealingringhasexpanded,replacethesealingringandautomatic
air vent
7. Anymaintenancerequiredfor this product, other than normal household care andcleaning,shouldbeperformedbythe Presto
FactoryServiceDepartment.
Installing the Pressure Dial Gauge
Toinstallthepressuredialgauge,threadthestemofthegaugeintotheCannercover,turningthegaugeclockwiseuntilthedialgaugebase
isushagainstthecover.Stopturningwhenthedialgaugefacesthedirectionyouwant.Note:Models01/CAA12Hand01/CAA20H
are different and install with a nut.
Fig. G

6
2002NationalPrestoIndustries,Inc. Form72-162B
Service and Parts Information
IfyouhaveanyquestionsregardingtheoperationofyourPrestoPressureCannerorneedpartsforyourCanner,callourConsumer
ServiceDepartmentweekdays8:00AMto4:30PM(CentralTime)at1-800-877-0441orwrite:
NationalPrestoIndustries,Inc.
ConsumerServiceDepartment
3925NorthHastingsWay
EauClaire,WI54703-3703
Inquirieswillbeansweredpromptlybytelephoneorletter.Whenwriting,pleaseincludeaphonenumberandatimewhenyoucanbe
reached during weekdays if possible.
Whenorderingreplacementparts,pleasespecifythemodelnumberfoundstampedonthebottomoftheCannerbody.
AnymaintenancerequiredforthisCanner,otherthanthatdescribedinthe“Cleaning”and“GeneralMaintenance”sections(pages4–5)
shouldbeperformedbyourFactoryServiceDepartment.Besuretoindicatedateofpurchaseanddescriptionoftheproblemwhensend-
ingCannerforrepair.Send Canners for repair to:
CANTONSALESANDSTORAGECO.
PrestoFactoryServiceDepartment
555 Matthews Drive
Canton,MS39046-3251
Cannerreplacementpartsareavailableathardwarestoresandotherretailoutlets.UseonlygenuinePrestoreplacement parts.
Forrecipescontact:
NationalPrestoIndustries,Inc.
ConsumerServiceDepartment
3925NorthHastingsWay
EauClaire,WI54703-3703