To use fruit extracts, simply pour the extract into your bottling bucket or keg before you transfer the beer. This way you can be certain that the extract gets blended in really well. The main advantage of using extracts is their ease of use. Some brewers may find the flavor to be too strong or too sweet.
The vanilla orchid can be up to 3 years old before it begins to grow vanilla bean pods. The pods themselves require an additional 9-10 months of growth before they can be harvested. There are 6 stages of vanilla extract production that make up this extended fermentation process.