and see how they do it. Every region and climate haying is a bit different.When we get the rains we bale up 30-40,000 square bales yearly and we've never used any type of moisture tester. I've thought about getting a moisture tester probe for round bales but I don't make them very often. I just do the old grab twist and feel method. Then if its close the best test it the baler. I make a round and check the feel and wieght of the bales. An added bonus of square bales in checking moisture and density. Once you know your baler you get a good idea of how much moisture your bales are packing. Up here 1st cut hay has to be baled drier then 2nd cut hay which comes off before winter sets in. We use a balewagon that makes 160 bale stacks. So you have to be careful on moisture of the hay.
Where as if you hand pick and or stack you can sort the hay out. Setting the damper bales in one area and the drier ones in another. You can bale hay pretty tough and it will keep if you spread the tougher out bales in a shed so they can dry out over a couple weeks.
I've heard of the microwave method from guys who sell hay for export where it gets compacted etc. In this case the hay has to be very dry. Drier then it would have to be normally. I think the plants want the hay at 12% moisture. Where as it will keep in a bale fine at 15-16%.
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