Flies may be on the fence about espresso, however they’re positively not followers of smoke. They hate smoke’s guts and think about it an indication of impending hazard. Since this coffee-burning hack produces a good quantity of smoke, it appears possible that it might have a constructive affect on your property’s fly inhabitants. The YouTuber’s instructions are to pack espresso grounds right into a small glass or cup, place a wick within the espresso, and dot the highest with cloves. We gave this a shot, and following these instructions, the wick would not keep lit as quickly because it burned near the espresso. We tried this as a result of a horde of black flies had entered our residence, however there was no smoke, fireplace, or fly repelling on this case.
Assuming it is doable to burn the grounds efficiently, this might be a useful trick. However burning a citronella candle might be a greater concept to smoke out flies (in addition to mosquitos and different pests). You might want multiple or two candles for it to work, however the deserves of citronella as a fly repellent are far more well-documented than burning espresso grounds. That stated, no matter which technique you employ, by no means depart an open flame unattended.