I made coffee using actual coffee beans. Don’t know which kind because someone already pre-grinded them. But it tastes like an actual drink you’d serve a human being, and not sour water with a hint of coffee flavor that is instant coffee
I’m still tired though, so the caffeine content is weak.
Unfortunately, no, you need a coffee grinder to get those beans nice and fine. Blenders and even spice grinders won't get you there.
If you're able, find a local coffee roaster or two and try some bags. I jumped straight into single origin stuff (basically treats coffee like a wine--each farm has its own unique taste) but you might wanna experiment first.
What do you use to brew coffee right now? There are some really good, super cheap options that might help you in your journey towards delightful bean juice