When it comes to using lemongrass in beer, I have found that the best results come from using only the white cane of the plant and avoiding the green leaves. The green leaves can impart a grassy flavor and polyphenols that may not be desirable in the final product. Therefore, it is important to strip all the green leaves off the stalk and focus on the white cane.
To incorporate lemongrass into your beer, start by cutting the white cane into thin slices. This will help to release the flavor and aroma of the lemongrass during the brewing process. You can add these slices to the beer very late in the boil, typically in the last 5-10 minutes. This timing allows for the extraction of the lemongrass flavors without boiling them off completely.
It's important to note that lemongrass can be quite potent, so a little goes a long way. Start with a small amount and adjust to taste in subsequent batches. Depending on the desired intensity, you can experiment with the quantity of lemongrass slices added to the boil.
Another option is to use dried lemongrass, which is more readily available and can be added directly to the boil. However, keep in mind that dried lemongrass may have a slightly different flavor profile compared to fresh lemongrass, so you may need to adjust the quantity accordingly.
In terms of the beer styles that pair well with lemongrass, it works particularly well in lighter, refreshing styles such as wheat beers, pale ales, or even lagers. The bright, citrusy notes of lemongrass complement the crispness of these styles and can add a unique twist to the overall flavor profile.
I have personally used lemongrass in a wheat beer recipe, and the results were fantastic. The lemongrass added a refreshing citrus aroma and a subtle, zesty flavor that complemented the wheat base beautifully. It was a hit among friends and fellow beer enthusiasts.
To summarize, when using lemongrass in beer, it is best to focus on the white cane of the plant and avoid the green leaves. Cut the cane into thin slices and add them late in the boil, around 5-10 minutes before the end. Start with a small amount and adjust to taste, as lemongrass can be quite potent. Consider using it in lighter beer styles for a refreshing twist. And most importantly, don't be afraid to experiment and have fun with your brewing process!