Review on Long-Lasting Reusable Arctic ICE Tundra Series Purple Ice Pack by Kham Fisk

Within a few years I have Freezer Blocks 2 ,5 and 5# used. They work well when new, but they wear off drastically. I have an ice cream company and we use it to "replace" dry ice in some cases. After many cycles of thawing and freezing, they have ALL lost their potency. (We have about 15 in two sizes.) Definitely not a replacement for dry ice as they claim. After about 20+ cycles they just don't freeze as cold and don't stay frozen as long. I have contacted the company directly twice and they have not answered my kind rejection questions. I'm disappointed.