That is a buttload of Cascade. I could put a good dent in it, but it would go further than 15 gallons. At least it’s a great hop - not like being stuck with 19# of Fuggles, eh Denny ? ;D
You can only fit about a pound of whole hops per gallon, silly. And you need to wring the wort out afterwards. Don’t ask how I know that lol. Still waiting for that one to be drinkable. I call it “hop spinach” IPA.
That’s actually not a half-bad idea. Or at the very least, you could drop a false bottom on top of your hops and press the whole thing down. For the brew in question, I had to dump the wort/hop mass in my BIAB bag and wring it out. My “whirlpool” consisted of me pressing down on the hops with a slotted spoon to squeeze a bit of juice out in spots - like wringing out a massive sponge on top of itself.
So, if anyone was wondering what’s the most amount of hops you can put in a beer, it’s about 1 lb/gallon for whole hops. The verdict is still out on pellets…