The difference between cheap and quality Cold Brew is significant

I used to drink whatever Cold Brew was convenient and it was fine. Then I tried a properly sourced version prepared in the morning and the gap was immediately obvious. The quality of the source at the quality end is in another category. The energy without the crash was also more pronounced.

You don't need to spend a fortune but you do need to care a bit. The bottom of the market in this category genuinely isn't good enough to make the habit worth keeping.