I use bleach, and then really rinse for most things, but not for coconut husks, or any other porous material, It soaks right into them. Much better to use a natural soap, and then bake. Hydrogen peroxide is the best bleach to use, if you have to, on coconut husks to remove the mold, it will not leave a toxic residue inside the husks.
Here is a some info on the amount of heat needed to kill mold completely including spores. If you cant indentify the mold always use at least 30 minutes at 65ºC/149ºF.
Species Lethal Temperature Time Duration Reference
Alternaria alternata 63ºC/145ºF 25 minutes Domsch, 1993
Aspergillus fumigatus 65ºC/149ºF 30 minutes Bollen, 1969
Aspergillus niger 63ºC/145ºF 25 minutes Domsch, 1993; Page 102
Chaetomium globosum 57ºC/135ºF 10 minutes Domsch, 1993; Page 119
Cladosporium herbarum 50ºC/122ºF 10 minutes Ridley, G. unpublished data
Stachybotrys chartarum 60ºC/140ºF 30 minutes
On the summer days that are in the mid 30Cs to low 40Cs, I usually do my lilac branches, and scrub them with a scrubby in bleach water and then rinse them and let them sun dry, to make sure all bacteria and parasites are gone. Then I bring the whole branches in and use them all winter, to make things.
Most of Chantillys mold problem is from doing big batches, which it takes longer to dry, so the oven will really help speed up the drying time so mold doesnt happen. Back in Victoria, mold was a big problem, here its so dry, mold does not happen. Even if i dye big batches of things, they are dry in no time. You can actually use a space heater to help things to dry faster too. Its better to prevent the mold from ever occuring.
For paper, I buy rolls of natural paper, and i use them to line the cages and make toys, and i also use the white paper for printing, and dye it and crimp it as well. Right now my Pois can go through a toy a day. So I like to make toys that will still be here and then i just add more chewables, most of the time. I use the left over bits for the foot toys, and rescued bits become new toys. I like the hanging atom and orbit styles a lot that i make with the dog hoops from the dollar store, and dog ropes. I have made huge play areas for so little money. I can add pine slabs to the atoms and then just replace them when they chew them up.