For getting all those nooks and crannies we have an assortment of homebrew brushes and homebrew washers. All brushes have stainless steel handles to slow down on rusting, our bottle and carboy washers differ in metal composition. No brush lasts forever, so order a few to have on stock for when your doing those consecutive brew days. Nothing worse than prepping the carboy for another 5 gallon Hefe without a brush to clean that sludge from last brew day when you had a few too many and didn't want to clean. While you are at it, make sure to pick up some homebrew cleaner and homebrew sanitizer.