The usual fermentation cycle is 7-14 days but it is best that you taste test your brew from day 5 onwards. When your brew reaches the balance between sweet and tangy then it’s right and ready! You can taste test by dipping a straw into your brew pressing the back close with your thumb and sampling a bit of kombucha. The kombucha will flow out of the straw when you lift your thumb. Remember not double dip.