Oak can bring out and add to the richly complex flavors of fermented delights such as beer and wine. But adding and managing oak in your fermented products can be tricky. Cubes or chips can spread through your product, making removal difficult. However, with the Stainless Steel Oak Flavoring Tube, adding, removing and managing oak has never been easier! simply add your oak of choice to the tube, lower it into the carboy, and allow the bung or airlock to hold the attached line in place. Simply remove the tube when oak character has reached the desired level. The stainless steel design is durable and inert, allowing you to oak over and over again!