Here's a fun thought puzzle activity. Let's do it together!
Let's say you had a big 2.5 gallon water jug, the kind you can keep perched on the shelf of your fridge with a pull-out spout for dispensing water. Let's say you kept it in a cabinet as your "emergency water supply" that you're supposed to have in case of earthquakes or whatever. Let's say one day you discover that the whole jug is practically empty and 2.5 gallons of water have gradually leaked out of it over an indeterminate number of months. Let's say you now want to make sure the mold on the water-damaged cabinet shelf is dead and will not continue to grow all over whatever you put back inside that cabinet. What might you do to clean this up?