Frozen -50° to -15°C

A Cool Cube™ at Frozen Temperatures is not an ordinary transport cooler (frozen vaccine and FFP carrier). It is an easy-to-carry, qualified container and pack-out system that keeps temperature sensitive product (varicella, MMRV, zoster, fresh frozen plasma) frozen between -50° and -15°C for over 2.5 days – without using ice or electricity! This cooler is ideal for transport, but also excels at protecting valuable product during off-site use and power outages, regardless of hot conditions. The simple, validated, patented technology is the best compact thermal protection product available to maintain the cold chain!

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Frozen Cool Cube™ Technical Information

stamp qualified

Easy & Safe Pack-Out

Vaccine For Children (VFC) Compliant
Step 1 Remove PCM from Cool Cube™
Remove
Step 2 Prep PCM Panels
Prep
Step 3: Assemble Cool Cube™
Assemble
Step 4: Pack-Out Cool Cube™
Pack-Out
Step 5: Close Cool Cube™
Close

Frozen Cool Cube™ Prep Methods

Cool Cube™ Series 20M Prep Chart

CLICK & PRINT DOWNLOADS (PDF)

All Series-20M Prep Methods









Series 20M Prep Method: A – Ultra-Low Freezer Prep






Prep Time: Stage 1-25°C ≈ 24 hours or until PCM is solid










Series 20M - Prep Method A - Ultra-Low Freezer Prep to keep product frozen










1. Store panels in an ultra-low freezer so PCM (phase change material sealed inside the panel) is solid. Shake to verify.





Shake PCM Panel To Check








          • i.e. 24 hrs. @ -25°C turns PCM solid










If the freezer temperature is ever warmer than -25°C, panels may not get completely solid (due to the possibility of supercooling). If panels are stored within the temperature parameters of the product, but are still liquid, panels may be used but the hold time will decrease.










Before assembly, shake panels to estimate the state of the PCM. Solid PCM will keep product frozen in warm conditions the longest. If liquid is heard, panels may be used but hold times will decrease.




















Series 20M Prep Method: B – Dry Ice to Freezer Prep






Unless the freezer is always below -23°C, PCM will never turn completely solid. Short-term use is still possible.






Prep Time: Stage 1 Time will depend on amount of dry ice used. Stage 2 ≈ 3 hours










Series 20M - Prep Method B - Dry Ice-Freezer Prep to keep product frozen





1. Place panels with dry ice until PCM (phase change material sealed inside the panel) is solid. Shake to verify.





Time varies dependent on the starting temperature of the panels, size of panels, and amount of dry ice used. CAUTION: Dry ice has a surface temperature of -78.5°C; handle with care.











2. Transfer panels into a fridge for a minimum of 3 hours before use to allow PCM inside to rise to the appropriate operating temperature. Panels may be stored in the fridge until needed for assembly or the PCM melts.





Shake PCM Panel To Check




If a freezer maintains -23°C or below, the PCM within the panels will not melt (melting point is -21.5°C), keeping the PCM solid indefinitely until pack-out. If the freezer maintains -21.5°C or above, periodically check for melting and restart stage 1 to ensure maximum hold times.










Before assembly, shake panels to estimate the state of the PCM. Solid PCM panels will keep product frozen in warm conditions the longest. Liquid PCM panels may be used but hold times will decrease.




















Series 20M Prep Method: C – Regular Freezer Prep






Unless the freezer is always below -23°C, PCM will never turn completely solid. Short-term use is still possible.






Prep Time: Stage 1 ≈ 24 hours or until PCM is solid










Series 20M - Prep Method C - Standard Freezer Prep to keep product frozen










1. Store panels in a standard freezer (turned down to its lowest setting) for a minimum of 24 hours before use. Unless the freezer is always below -23°C, PCM will never turn completely solid (short-term use is still possible).





Shake PCM Panel To Check








          • If liquid…panel is at the freezer temp but above -20°C; anticipate shorter hold times.





          • If solid…panel is at the freezer temp but below -23°C; ideal for maximum hold times.





          • If solid/liquid combination…panel is at the freezer temp between -23° and -20°C; monitor longer use periods.










Although panels are liquid, the PCM inside is at the temperature of storage environment after 3 hours (i.e. stored in a -18°C freezer, the PCM panels are at -18°C). Assembling the Cool Cube™ with this additional thermal mass will keep product frozen, just for a shorter amount of time than the lab-validated results.










Before assembly, shake panels to estimate the state of the PCM. Solid PCM panels will keep product frozen in warm conditions the longest. Liquid PCM panels may be used but hold times will decrease.

Thermal Properties of Series 20M PCM Panels


Phase change materials (PCMs) are materials that absorb and release thermal energy during the process of melting and freezing. When a PCM melts, it absorbs the heat from the environment, yet its temperature stays at the melting point until totally liquid. Conversely, when a PCM freezes, it absorbs the cold from the environment, yet stays at its temperature until totally solid. This makes PCM an ideal, passive solution for a variety of applications that require temperature control. The most common PCM is water/ice. Ice is an excellent PCM for maintaining temperatures at 0°C. But water’s freezing point is fixed at 0°C (32°F), which makes it unsuitable for most temperature sensitive applications.






Cool Cube™ PCMs offer custom temperature holds based on their melting point. The PCM inside Series 20M panels has a melting point of -21.5°C/-6.7°F. When panels are solid, contents within the Cool Cube™ stay frozen (at freezer temps around -21.5°C) in hot conditions during an extended period of time. If panels have liquid inside, PCM is at the temperature of the storage environment, but will not prevent warming in hot conditions as effectively as solid panels.






Thermal Properties of Series 20M PCM Panels











Cool Cube™ User Guide



Cool Cube™ User Guide
Cool Cube™ User Guide
Cool-Cube%E2%84%A2-User-Guide-digital.pdf
Version: 02

Cool-Cube™-with-series-20m-PCM-&-Dims

Refrigerated Temps Hold Time:




Hold-temps-Series-20 PCM

PCM Panel Prep Steps Sequence


  • Always prep the PCM panels before use according to one of the described methods provided by VeriCor.









  • Ensure all components are clean and free of damage.









  • During prep, enable ample air flow around all panel sides (use spacers or racks).








    PCM Panel Spacing Customer Solution









  • Lay panels flat when “freezing”.









  • Freeze/melting times vary depending on number of panels being prepped and equipment specifications being used. Assemble using all six panels for maximum hold time.
















  • Using less panels does not change the holding temperature but does decrease hold time.









  • Panels are reusable (10,000+ cycles). (End-of-life disposal: panels use a plastic #2, typically recycled by businesses/communities; PCM is nontoxic and readily biodegradable.)









  • Use a calibrated data logger or other temperature monitoring device to observe internal temperature.









  • Avoid unnecessary opening of the Cool Cube™ after loading payload. Opening of the Cool Cube™ will decrease hold time.









  • An infrared temperature thermometer can assist in ensuring the panels reach a safe pack-out temperature (good for finding out the approximate temperature of each panel).









  • Further the temps are away from the melting point, the quicker PCM will change states.






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