- 1). Wipe the both sides of the slice of bread on the kitchen counter or any surface. Doing this will spread the spores needed to create the mold.
- 2). Drop three drops of water onto on side of the bread using the eye dropper. Make sure the drops are small and that you don't soak the bread. For example, place the drops onto different areas of the bread.
- 3). Place the bread into a plastic sandwich bag. Make sure not to tear the wet areas of the bread. Tightly close the sandwich bag so no air can enter.
- 4). Place the bag in a warm, dark area. A kitchen cabinet that is empty or doesn't have food is a perfect location. Wait at least 24 hours and check on the bread. There should be some discoloring on the bread. Wait another 24 hours and the bread should have fully produced mold.
- 5). Examine the mold on the bread. If you take the bread out of the plastic bag, make sure you wear rubber gloves and you don't breathe in the mold. Use a magnifying glass to look closely at the different molds. The black mold may appear dark gray and sometimes appears as looking like whiskers along the edge of the crust. This mold that you've produced is the Rhizopus black mold.
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