aphids

If your still in. Early flower I'd use neem seeing the aphids will all die very quickly. If it was close to harvest I wld say don't use neem it can make the buds taste bad but your not close to harvest from ehat I read. Your other choice is mixing some dish soap with vinegar amd water and add some essential oils such as mint oil, cedar wood oil, tea tree oil, thyme oil, peppermint oil, eucalyptus oil, and clove oil If you have any of these things just lying around mix them with water make a very diluted solution and spray directly on bugs.

never heard of coffee being used on aphids. I would spray your plants with just unscented dish detergent "dawn/palmolive/sunlight" and water, like one teaspoon per L. and then power blast em in the tub after letting it sit for 10 min. most of the aphids will fall off or die in the suds. Can manage the rest by introducing predators or just squishing em. some instant contact killer would be good too. just worry about it lasting on the plants. something with Permethrin would work well. just bud wash em in the end.