we bought this Foodsaver - v3840 - Appliance for vacuum packaging in order to keep the best food we buy extra fresh market for our young children (especially fish and meat) in order to prepare them whenever we want (well when you have time!). Most important for the taste and nutritional qualities keep well quality is that Foodsaver - v3840 - Appliance for vacuum packaging allows not to have frost in the bags evacuated! and that's not nothing! then, yes, we must first carry out tests before its packaging do well, but we we got there quite quickly and quite easily. Price stings a little, but given the frequent use and contentment, it is worth the investment in my opinion.