Reddit reviews Brewer's Best Bitter Orange Peel 1 oz.

I'm in no ways an expert, I've only made two batches before (orange and grapefruit), but in my experience, it's very difficult to get the complicated flavors balanced correctly that you would be looking for from a professionally made bitters. I think a lot of DIY recipes try to simplify a lot, which will give you a more straight forward, clean taste for what you're looking for, but maybe not all the crazy herbs and such because it's just so hard to properly balance them.

This would certainly seem to be a mild or more floral bitters, as they're looking to do most of the bittering with the actual lavender and orange peel. These can become quite bitter on their own, or you can even find bitter orange peel if you want more bitter notes. That being said, I used gentian in my orange bitters and holy hell was it bitter. I did infuse the ingredients separately - bitters in one mason jar, aromatics in another, but then promptly poured the two jars together... I would definitely suggest measuring and tasting when mixing. My orange bitters turned into more of an orange colored gentian bitters (and like 200ml of it...).

Mostly, I would suggest making a very small batches, infusing the flavors separately and mixing to taste. The bitter flavors will be strong, the fruit/floral flavors will be subtle. If I were to do this whole-hog again, I would probably separate all flavors your infusing and mix them to taste, but definitely do it by category (bitter vs aromatic, etc) so that you can mix them, taste, and adjust the proportions. Lastly, trying is the best way to see what works and see what you like.