I'm in the process of making my first sour. It seems like fermentation has slowed down and I'm going to transfer it to the secondary where it's gonna sit forever. I pitched the batch using roselare and I wanted to use some dregs from Rodenbach Gran Cru. How do I go about doing it? Do I just drink it down to the last bit and dump them in? Do i amke a pseudo-starter with some boiled DME then add that? I've tried searching but haven't found to much. I've been saving my rodenbach so I could throw it in my secondary to help add some more sourness