The quality of a DNA extraction method is a primary limiting factor in the total number of samples that will return a result with nanopore barcoding of fungi. The "quick" extraction protocol will often yield a positive result for 80-85% of general fungal collections (less if biased with polypores and recalcitrant species). Utilizing this extraction protocol pushes that number to nearly 100%. It is more time consuming and utilizes more expensive chemicals, but may be worth considering for important specimens that fail with the quick extraction protocol.