Kirkland canned cold brew is extremely bitter and tastes overly dark and borderline burnt to me.
On other hand Trader Joe’s canned cold brew is perfectly medium for my taste
I think Kirkland cold brew's problem is the Colombian bean it uses. I remember trying a Colombian pour over and feeling a greater understanding about my dislike of Kirkland cold brew.
Agreed, that Columbian Supremo is roasted beyond what I would even call dark. The Kirkland signature blends are roasted by Starbucks so we know why those are burnt but the Columbian seems to be by someone else.