Yes! Surprisingly enough, it is actually possible to dye black jeans with coffee. You will need to use a strong, dark brew – the darker the brew, the darker the dye! While wearing gloves, simply brew up enough dark coffee to fill a bowl or bucket, place your jeans inside and leave them to soak overnight. In the morning, pop them in the wash on a gentle cycle with no detergent. Finally, all you have to do is allow them to dry and get wearing them!