The one and only annual hay harvesting up here is complete. Fresch gasifier filter material available. Went down to the river to change it out. I was about to take a dip as well, but I chickened out Water temp is probably less than 15C (60F). We have had no real heat this summer.
There was really nothing wrong with my old hay. I´m sure i could have used it another full year. Woodgas and the lack of oxygene seem to do a good job preserving it.