How do I get rid of mold inside the wood of an old toy box?

Hi Mary, here's a post that recommends starting with soap and water and moving on from there. It also lists the precautions you should take when dealing with mold. Hope it helps. https://www.bobvila.com/articles/how-to-remove-mold-from-wood/

Bleach and warm water will clean the mold. Usea sounge and brush with the grain. Rinse and let dry. Then clean with vinegar and warm water. Vinegar kills mold spores. Rinse and let dry. Do not mix the two together. You will get chlorine gas. Then seal the inside with Bullseye Seal coat. Works on sealing odors in hard to clean furniture.

How to Eliminate Odors in Wood

Your best hope for sealing in any odors is shellac. It makes an excellent barrier coat over all wood species, and it sticks to almost anything. Zinsser makes a great product for this purpose, called Bullseye SealCoat. It’s a clear dewaxed shellac that you can apply to those drawer interiors easily with a brush. It dries quickly and should help to diminish mice, mildew, musty, smoke, urine smell. And since it doesn’t contain wax, you can apply other finishes like lacquer or varnish over it — they’ll stick just fine. SealCoat is also handy to have around the shop as a general purpose wood finish and sanding sealer. So, I’m sure you’ll find other uses for what’s left of the quart you buy.

Hi Mary. I would try using dish soap and water and scrubbing it real good. Then let it dry out in the sun.

Hi Mary - This article is more for mold in the shower, but there are some gems you can take away. Hope this helps! Hugs, Holly

https://pinkfortitude.com/mold-in-the-shower/

Hello Bink. This will work. Once it's dry....no staining....no odor. You can even paint the drawer inside over it if you want.

Mix hydrogen peroxide and white vinegar in a spray bottle and spray it down and let it dry. Then wash it and it should be fine.

Toothbrush and bleach of some kind would be my suggestion.

Hi Mary Lynette, here's some info I found on the internet. Just be sure to wear eye and face protection as well as rubber gloves.

Begin by diluting your chlorine bleach properly. 2 teaspoons per half gallon of warm water is the ideal solution strength for removing mold from wood cutting boards. Using a kitchen scrubbing brush, gently scrub your cutting board in the bleach solution until the mold has all been taken care of.O