What is the opinion of Reddit about the
Bean Envy Cold Brew Coffee Maker – 32 oz Glass Iced Tea & Coffee Cold Brew Maker and Pitcher w/ Silicone Cap & Base?

I have one similar to this one. Here is the cold brew container that I have used for a year now. That and a 20 oz mason jar, which I pour the brewed coffee. I like keeping one brew ahead, if possible.

As far as the coffee I have been experimenting with, here is a Big Lots coffee that I have been using that give a pretty decent yield for the price. However, nothing beats the yield from a freshly coarse ground coffee bean, if you can find them at a decent price.

Dedicated cold brew makers make it as simple as can be:

https://www.amazon.com/dp/B071ZWR7M8