If you want to make partials even easier, get a big mesh bag (I mean as big as your kettle). I mash in the bag, add the rest of the hot water, stir gently for five minutes and remove the bag. Add extract and fire away.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk