I know we are suppose to do a search to find previous threads about the information we are seeking and i did this and I have seen conflicting suggestions. I wanted to add some branches to the cage and since we just had a ice storm I thought what a perfect time to go collect some fallen branches. A few are smaller and will fit in my oven but the majority of them are far too large to fit in the oven so I was wondering what is the best way to sterizle or clean these. I have heard bleach is not safe but I am unsure how reliable this information is. I was wondering if teetree oil would work. I am unsure of the type of branches these are as it is winter and there are no leaves on them. I have a feeling they might be maple. Some of the larger ones have mold on them so I assume I must clean this off. Any help would be greatly appreciated. Does the bark have to be remove or is it ok to leave it on? Thanx.