I always though the speed bonus from the coffee doesn't stays as nearly as long enough I need for all the stuff I have to do, and I would spent half the day chugging gallons of the stuff. So I decided to double the length of the buff duration and I'm sharing here with you guys. **It only alters the buff from drinking Coffee, everything else should remain as it is. https://mega.nz/#!qFcUGZZL!LAj6qCGMdgbaGkuaU5LTOv5pYnUKDCpG5WGijSU1gMo Just pick the file and paste it on Stardew Valley\Content\Data. **I only altered a single value, shouldn't cause any shananigans with your game, but you never know, so backup the original file before overwrithing it.
