To Heat in MICROWAVE Heating Tips and sack usage configurations:

Please remember to fully submerge the mega thermalball in water!



Remove clasp (un-tie) as metal spring in retaining clip is not microwaveable!

(temporarily for microwave uses)

Wrap the excess fabric bag and tie cinch cord tightly (below)





 

Place 4 original size thermalballs in large sack without clasp to heat



Submerge in microwave safe cooker (example) shown below.



 

Never use a "ziplock" or any flexible,

or liquid retaining bag to heat thermalballs.

 

To Make Cold:

Put in Freezer or in ice bucket.