It may seem extraordinary, but in fact mould in the home is a common health problem, affecting tens of thousands of people in the UK, explains Malcolm Richardson, Professor of medical mycology (the study of mould) at the University of Manchester.
There are up to 150,000 people suffering from severe asthma in the UK. From the research we discovered that they could benefit from taking antifungal medication already available from pharmacists - the pills used to treat everyday fungal infections greatly improved the symptoms of asthma in those patients that had an allergic reaction to one or more fungi.
Plant material such as marijuana is an excellent food source for fungi such as Aspergillus. Once cut the material must be dried rapidly and consistently to a very low moisture level to avoid it becoming mouldy. Once dried it must be stored in completely dry conditions to prevent it becoming damp and once again quickly becoming mouldy.
Storing marijuana or any other plant material in small sealed containers or wrapped in plastic will only help if the material is completely dry in the first place, otherwise you are effectively locking the mould in with its own supply of food and water whereupon it will flourish. Mould does not need light or much heat to grow.
The largest organism in the world is a mushroom that is over 1,000 years old, covering hundreds of acres of forest in Oregon, USA. Kew Gardens has an enormous collection of dried fungi - over 1.25 million samples stored in a huge archive. But many interesting studies are carried out by Mycologists at Kew. Watch a short video to see more.