Drying bud

You might be able to get away with using an evaporative cooler in there to lower the temp. If you could spare the humidity increase. If you have an inline fan or a dehumidifier you may be able to use that with the EVAP cooler

If you experience the hay smell no stress about that man. Once it’s dry enough to go in jars the hay smell will go away if you cure that bud properly. As you burp the containers daily the smell will eventually go away as the bud bleeds out the chlorophyll built in the sugar leaves. After I put the weed in jars. I let my bud breathe twice a day for 30 minutes during the first three weeks. Then I go to once a day after that for 30 minutes for the next three four weeks. For a six to seven week curing time. Everyone has their own method. Now there’s grove bags that apparently it does all the curing and you just let it do its thing. Honestly though 23 isn’t a horrible number to be drying at. I dry at my house’s ambient temperature. Congrats on the harvest.

Beside an AC? is this a real question? if your RH% isn't too high, an evaporative cooler may help, but it will also raise RH%. It won't do more than a few degrees cooler. they are not an effective method of cooling the air beyond a few degrees. could create of grid of soemthing with large openings on one side with smaller opening on the other (like a bunch of 2L with bottoms cut off. The physics of air compressing as it flows through will cool the air very slightly, lol.. Again, while this is true, like the evaporative cooler it's mostly useless to put the effort into this. a 1-3 F won't matter much.