Old beans
It’s best to sand lightly with a nail file , fine sand paper . Ect. Then if you soak do so with a splash of hydrogen peroxide added to tap water
Soak 12 hrs then on to worm castings method
I am trying let complicated ways
For the most part I no longer soak seeds except if there old ones
But moist and warm environment is what they like
So a heating mat and a dome to raise rh is a good thing but keep them in the dark until
you see tails
Now that said a good friend just puts them in coco with a dome and a little heat directly under a low watt light and it never fails
Lol
We do what we like
And what works for us
Paps