were they hot water bathed? Or hot brined? edit- based on your pictures, I'm assuming they were HWB'd.
I have used
This Recipe from Colorado State Extension service with excellent results. It's the Pickled Pepper recipe, not the Colorado Mix, but they are very similar. I've done some hot water bathed ones, they will always be a little softer, don't know of any way to get around that.
If you have room in a refrigerator......cold pack using the same Pickled Pepper recipe! Total WIN! Crispy chiles, lasts for months.
Make the brine and let it cool. Wash, trim, slice the chiles and whatever, pack into jars. Seal and refrigerate.
Last fall, I told the farmer I get jalapenos from I could use about 20 pounds more....they showed up with 80 pounds of jalapenos!!! I ended up making about 10 gallons of pickled peppers using the above recipe in 2 large food service tubs. I just left them in the fridge until I could get some plastic jars and time enough to deal with them. Eventually I packed them into pint jars and off to market they went. Been getting rave reviews because they are still crispy.
Unfortunately, it does take up a good amount of space in the fridge, but maybe you could find room for a gallon jar or so.
Oh! and I did add some garlic cloves, onion, and carrot to the mix....just because...
Here's what I did with some of the rest- ghetto dehydrator set up-
slice the jalapenos, pile them up on the trays and wrap the sides with cling wrap. Worked like a charm! I probably got 3-4 times more than normal dried at one time.