It's embarassing, but I am a retired chef and have never freeze dried food. I saw an ad the other night on TV about "Harvest Right," freeze dryers and I am wondering about the prospect of getting one. I can easily see *some* of the advantages and disadvantages (easy contamination as a survival cache') but would still like someone to weigh in on the subject. All of the brands I have looked at on line are pretty expensive but if the cost is outweighed by the product it might not be a bad thing to do. Does anybody have a freeze dryer and how would you rate it on a scale of 1-5?