You will be limited by the size of your frozen plasma bag. It takes about 20 minutes to thaw a bag with 200 ml in it. If your bag is larger, it will take longer. If you are going to compare thaw times with a waterbath, the Sahara will lose. We have both a Helmer and Sahara. The Sahara is used to thaw for stock plasma (we keep 6 thawed A,B, and O) - for patients, the waterbath is quicker. Cleaning the Sahara is much easier than a waterbath and that was the big selling feature.