aeropress micro-filters, value pack of 700 with bonus red cap & straws aeropress and the handy house along with the 700 genuine aeropress filters, come two little bonuses of "the red cap" designed by the handy house for use with the aeropress coffee machine and a set of 4 straws. the red cap simply caps off the plunger so you'll have a place to store beans and filters on the go. with enough filters to last for 2-3 years, this package of 700 aeropress micro filters keeps kitchens well stocked. the micro filter removes grit, unlike other press-type coffee makers. the filters are designed for use with the aeropress, an entirely new way to make coffee. its ideal water temperature and faster brewing yields rich flavor with lower acidity and without bitterness. other brewing processes use near boiling water and long exposure to coffee grounds. the aeropress lets one quickly brew a variety of coffee drinks including an americano or an espresso-style shot for use in lattes or cappuccinos. its total-immersion system permits extraction at a moderate temperature and a short brew time. water and grounds are mixed together for 10 seconds, then gentle air pressure pushes the mix through a micro-filter in just 20 seconds, which avoids the bitterness of long processes such as drip brewing. the air pressure also gently squeezes the last goodness from the grounds, further enriching the flavor. the total brewing time of only 30 seconds results in an exceptionally smooth brew. the red cap and the stainless steel straws are made by the handy house.