ive been making different variations of this for a good friend , and have always played with it to make it better , the other day he bought a aspire k4 kit and i tried it and after tasting the juice i was very pleased and asked wth is that well it turned out to be this recipe very smooth and the combination of peaches and guava really work well it was 2 weeks old when i tasted it so 2 week steep should be fine