It’s a flexible sheet which is usually of dimension 29 x20 cm, 2 mm thick and weighs about 40 grams. Once activated they are about 900 grams in weight and they shrink to 25 x 20 cms and go about 3cms thick.

1. Things you didn't know about a Dry ice pack
1. What is a Dry ice pack?
It’sa flexiblesheetwhichisusuallyof dimension29x20 cm, 2 mm thickand weighsabout40
grams. Once activatedtheyare about900 grams inweightandtheyshrinkto25 x 20 cms and go
about3cms thick.
The dry ice pack is a syntheticdehydratedgel packwhichhas2 outerlayersof perforatedplastic
and 2 innerlayersof nonwoventextile whichencapsulate aposttreatedsodiumPolyacrylate co
polymer.These ice packscanbe activatedwhenrequiredandused.These dryice packscan be
cut to size,flexible whenfrozenandlastupto 7 timeslongerthanice.
2. How is a dry ice pack usedand how is it Hydrated / Activated?
The dry ice packs are deliveredtoyouinthe dehydratedform.Theyonlyneedtobe soaked
underwaterso the cellscan be activatedandbecome anice pack.It onlyneedstobe soaked
underwaterfor the firsttime.Once the ice sheetisfullyhydrated,itcanbe usedoverandover
againlike anyotherice pack. Hence reusedbyrepeatfreezingorheating.
In orderto hydrate these dryice packs please see ourinstructionsonhow to hydrate the dryice
pack. Inshort, theyare justcompletelyimmersedinatub of warm waterand gentlyscrunched
and allowedto soakfora 15 minutes.Youwill notice the cellsstarttohydrate,once the cellsare
full andcan’t expandanymore,theyare readyforuse.
3. Whenis the dry ice pack ready to freeze | how much to hydrate a dry ice pack
The dry ice packs needtobe hydratedcompletelytoensure yougetthe bestperformance.Each
cell can hydrate to a maximumthicknessof 3cms.Below isa reference image whichshowsa
semi hydratedice packand a fullyhydratedice pack.
4 how doesthe water enterthe ice pack ? Does the icepack needto be cut before it is soaked
in water ?
The dry ice pack has beendesignedtoworkonperforationtechnology.Theyabsorbwater
throughthe minute holesinthe dryice pack and react withthe polymerandonce the polymeris
hydratedtheygrowto a size greaterthanthe holesinthe textileandthe plasticandhence its
containedwithineachcell.Hence the ice packdoesn’tneedtobe cut to be soakedinwater.

2. 5 Doesthe sheetsize change once after hydration.
Yes once the icepackisfullyhydratedthe sheetdoesreduce inlengthandbreadthbecause the
sheetgainsalmost3 cms inthickness.The sheetreducesbyalmost3cm on the lengthand3 cm
on the breadthdependingonhow well the sheetsare hydrated.
6. Will the cellscontinue to expandevenafter hydration is complete?
In shortno, the cellswouldn’tcontinue toexpandafterhydrationbutif the ice packsare soaked
inwater fortoo longit makesthe cellsgettendtobe prone topunctures.The pack isfully
hydratedwhenyoucan leave asmall indentonthe cell withyourthumb.Itis natural forthings
to expandwhenfrozen,hence allowingjustalittle bitof the indentinthe packwill letthe ice
pack expandwhenfrozen.Althoughthese ice packsare made usingthe special plasticthatcan
expandandcontract .
7. Will the dry ice pack evergo flat again ?
Afterprolongedstorage orif the ice packs are usedas a heatpack , theytendto lose waterdue
to dehydrationwhenheatedinamicrowave ,soafter every4 to 5 uses, we recommendthat
yousimplyputthe sheetsbackin waterfora few minutesorsimplyrinse themunderwater.
8. How are Dry ice sheetsbestfrozen or heated:
As cold pack :
Once the ice packs is readyto use , if youintendtouse itfor cryotherapy,we recommendthat
youplace themin the freezerforabout3 to 4 hours.This half frozenicepackwill keepthe
icepackina plasmastate whichmakesthemfeel like asemi solidandare more comfortable
whenpressedonyourbody.If the ice pack is fullyfrozen,we suggestyouplace ahand towel
betweenthe ice packandthe body to avoida freeze burn.The cryotherapyorcoldtherapy
shouldonlyusedinintervalsof 20minutes.
To transport things cold inan ice box:
We recommendthatyoufreeze the hydratedsheetforaminimumof 24 hours.The freezer
mustbe setat lowesttemperature because the colderyoucan freeze thisice pack,theylonger
theylast.For tipson howto pack an icebox,pleasesee thislink.
Boilingwater
the dry ice sheetcan be usedas hot pack andcan be heatedupto temperaturesof 70°Celsius.
To use it hot,you can eitherimmersetheminapot containingboilingwater.Butrememberto
remove the potfromthe stove before immersingthe dryice pack forabout 10 minutes.Wrap
the ice pack whichis nowa heatpack in a towel andshake off any wateronthe surface andnow

3. readyto be usedas a heatpack.
Steamer
the ice pack can alsobe placedina steamerandheatedinsteam. Thisisa preferable methodto
boilingwatersince it’smuchsaferandcan alsoreduce the riskof overhydratingthe dryice
pack.
Microwave
The heat pack can alsobe placedina microwave.It’sbesttolaythe sheetflatinthe microwave
and heatfor upto 40 secondsandif youfindthe ice pack is nothot enough,we suggestthatyou
go withincrementsof 10 seconds.The heatingtime woulddependonthe powerof the
microwave.
9. How safe is this dry ice pack to use:
Cryolux dryice packs are made withfdaapprovedmaterialsinourisocertifiedfactoryandthe
gel iscompletelynon-toxicandnon-hazardous.Itissafe to be incontact withskinand food,
thanksto itsfoodgrade laminate.
10. How Is a Cryoluxdry ice pack betterthan ice:
These dryice packs are a perfectreplacementof ice because itsalot easiertohandle andwhen
it thawsoutit doesn’tleave amessbehindlikeice.These ice packsare flexible evenwhen
frozenandcan last up to 7 timeslongerthanice.The bestof all,yousave waterand itsreusable.
Bestof all,thisdryice packdoublesasa heatpack.
11. How long Cryoluxsheetwill stay cool or hot:
Hot and cold therapy
If these dry ice packsare usedfor treatingpainorinjuryusingcoldor hot therapy,anysingle use
wouldlasta fewhourswhenitsindirectcontact withyour body.Thisextendedchill times
makesitperfectformuscle recoveryforsportsand gymjunkies.Likewise,forhottherapy,it
lastslongenoughforone to two sessionof therapy.If youwouldlike toknow whentouse heat
therapyand coldtherapyplease see thislink
Cryolux dryice packs have majorapplicationasa refrigeranttokeepperishable itemscool like
fruitand vegetables,seafood,drinks,medicinesetc.Itemsthatare temperature sensitive
require tobe storedand transportedunder5-degree candare usuallytransportedinawell-
insulatedice box alongwiththe sufficientvolume of dryice packs.The chill timescanbe
extendedwithuse extradryice packsand a largerice box.Freezing the sheetsindeepfreezers

4. or evenblastfreezerscanincrease the coldcycle.
12. How are these dry ice packs usedas a hot and cold pack for therapy:
Coldor hot therapyhasalwaysbeenthe mosteffectivetreatmentpainrelief andinflammation.
These ice packsare perfectforsportsinjury,minorbumpsandbruises,muscularsprain,strain
or spasm,jointpains,cramps,haemorrhage andevenworkperfectlytoreduce the swelling
aftera dental extraction.These dryice packsare most commonlyusedforpostsurgery
rehabilitationtreatments.
13. What are advantages of a Dry ice pack compared to blue gel packs in the market?
The blue gel packsnormallyhave a higherfreezingpointusuallyaround -4to -5 degree c,
howeverthe Cryolux formulationhave droppedthe freezingpointonthese icepacksto -21
degree c.The blue ice packsaren’tflexible whenfrozenthusmakingithardto wrap arounda
productor evenyourbody.The dryicepacksare flexiblewhenfrozenandcanbe usedintight
spotsin youricebox orevenwrappedaroundthe body.If the blue ice pack hasa puncture,they
go straightto the binhoweverif the dryice pack has a puncture,youcan simplycutthat cell out
and continue touse the ice pack.
15. What isthe life span of a Dry ice sheet:
The reusable 4 plydry ice pack usuallyhave ashelf life of afew yearsaslongas theyare stored
inthe original packagingthatwassuppliedatthe time of purchase.The onlyproblemcouldbe
that the polymerinthe ice pack can be affectedbythe moisture andit’sbestto use warmwater
whenyouare hydratingareallyoldice pack. If the sheetcan be cared forwell byavoidingany
punctures,the ice packcan lastfor manyyears.
14. Do these dry ice packs everleak?
The plasticand the fabriclayersof the cell are permeable andthe transparentgel don’treally
leakhoweverthere are some rare occasionswhere youmayfeel athinfilmof the gel onthe
surface of the sheet.Thismaybe a slipperyorstickyfeel,particularlywhenthe cellsare pressed
or heatedina microwave orwhenthe sheetshave notbeenusedfora longperiod.All the
materialsusedinmakingthisice packare foodgrade and FDA approvedandhence itsnot
somethingtoworryaboutbut justgivingthe sheetarinse undertap water will solve the
problem.
15. How should the Dry ice sheetsbe storedwhen not in use:
Ideallyit’sbestthatthese sheetsare storedinthe freezer.Thishelpsinmaintainingthe
temperature withinyourfreezerthussavingmoneyonpowerconsumed.If youare out of

5. storage space,itsbestto pack themaway ina well-airedcontainertoavoidanymouldor fungus
due to the moisture.We recommendthatthe sheetare washedbefore use.
16. Can I mix Cryoluxdry ice sheetand crushed bag ice together:
The dry ice packs can certainlybe mixedwithice howeverif youwouldlike toenhance the
performance of the dryice pack we suggestthatyoumix themwithdry ice or evendryice
pelletswhicheveriseasilyavailable.Howeverif youdomix themwithwaterice or bag ice that
youbuy fromthe supermarket,please rememberthatthe waterice isgoingto be at a warmer
temperature because the dryice packisat -21 c and the waterice is usuallyataround -4-degree
c. Hence we recommendthatyoupack the bagsof ice on the bottomof the ice box and pack
your foodanddrinksabove itand create a blanketof dryice packs onthe sidesandwallsand
righton top forthe topmost layerwe suggestthatyouhave 2 layersof dry ice packs because
that iswhere mostof yourheatpenetratesyouricebox.Thiswayeverytime youopenandclose
your icebox ,youwill findthatthe blanketof dryice packs are protectingyourchillnessandthey
will be the firsttothaw out.If youare usingdryice,we recommendthe same arrangement
where youlaythe dry ice brick onthe bottomandhave a few sheetsof dryice pack directly
above the dry ice and followthe same bycreatingadry ice packs blanket.
17. What’sthe best way to cut a Cryolux dry ice pack:
The Cryolux dry ice sheetcanbe cut alongthe seamsto the desiredshape aslongas youdon’t
puncture or cut too close tothe cellswhichcontainthe gel.The bestwaytocut the ice pack isto
firstactivate themandonce theyare fullyhydrated,theycanbe cut easily.
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Ice packs, Reusable Dryice packs,Bubble BackIce Packs,Tuna GulletGel packs, PCMgel packs,
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