If you have flashbacks, and you are reading this, you know exactly what I mean. I hope you have people in your life who understand this, too. Not everyone does. While every therapist should have a clear idea of what a flashback is, and how you feel when you experience one, some therapists are unfamiliar with PTSD.
Dry ice can be bought in local grocery stores. However you can also produce your own dry ice through a portable dry ice maker. Certain portable dry ice makers are capable of p â¦ roducing 1-lb blocks of dry ice within a minute.owever you can also produce your own dry ice through a portable dry ice maker. Certain portable dry ice makers are capable of p â¦ roducing 1-lb blocks of dry ice within a minute.
Then you have a way to monitor the temperature to be sure it stays at least as cold as a refrigerator (40Â°F) or colder. If you can get dry ice, a 50 pound block will protect solidly frozen food in a full 20-cubic foot freezer for three to four days. If dry ice is not available and/or you do not have a thermometer in the freezer, then the question of safety becomes a bigger issue the longer you are without power.