reply to Mr Matt
Re: Using Dry Ice for Cooling backup for refrigerator? Mix dry ice snow (from a dry ice gun) with alcohol from a freezer (everclear (if any risk of food contamination) or isopropyl) and you have an excellent cryofluid. Initially the slurry will be boiling but it will cool down after a minute or 2 and stop boiling and now you have -100F semi-liquid. It has the consistency of a slurpie IMO. Remember to wear winter gloves with plastic gloves over the that. Dry ice, and especially a liquid at dry ice temperature will burn you as bad as fire. You will have scars and peeling skin. And it hurts longer than a heat burn.