substrate question for a blind snake handler

[Cigam]

Sorry, the flashlight thing won't help. I should have been more clear,
I am totally blind.

I looked for awhile and found that some websites sell odorless coconut coir.

It would be good for humidity and you could smell if you need to clean the cages.

I've never used it so unfortunately I can't confirm that it is odorless but it might be worth buying some to see for yourself.