Interesting, I use a small plunger when adding hops to an extract beer. Basically put the hops in, add boiling water, leave for desired length of time ie 10 or 15 mins. Then plunge and pour hop tea into the fermenter. Haven't done it for ages, might use it when I make my christmas bludgers beer.
Bugger, and to think I have spent thousands of dollars and years of my time perfecting my home brewery when I could have just plugged in the coffee machine :lol: . I better not let the better 1/2 know h34r: .