Yes. We tend to drink from the 5 litre and top it up from the 15 litre so the 15 litre has the raw port added. When we bought ours it was oakey and we were told to draw some off an put more raw in. We kept what we'd drawn off and re-added it once it settled down, it saves having a batch that's really oakey. It was fine after that. When we bought the larger barrel we did the same by emptying the 5 litre in to bottles and topping it up from the new 15 litre barrel.