Yes, cheese is in fact a very good conducter of electricity, but must kept at a temperature of around 0 degrees, due to the fact the electrical current releases thermal radiation and causes the cheese to melt, which effectively increases the resistance of the cheese and therefore decreases the current. cheese has been known to power factories and other powerhouses as an environmentally friendly way of producing electricity. The most effective way of utilising cheese is in a cheese factory itself by recycling unwanted cheese back into the system. However like most things, the cheese degenerates over time, as well as become less pure as it reacts with the materials that the apparatus it is held in.

I recommend Blue cheese and other mouldy cheeses like Stilton as the mould prolongs the life time of the cheese.