This question comes up constantly, and the coffee industry tends to give the same answer every time: buy whole bean, grind fresh, get a good grinder. That's not wrong. But it's incomplete, and it glosses over the real trade-offs.
Here's the straightforward version.
What you gain from whole bean
Ground coffee begins oxidizing the moment it's ground. The surface area exposed to air increases dramatically, and the aromatics that make coffee taste the way it smells start degrading almost immediately.
This is why freshly ground coffee brews differently than pre-ground that's been sitting. The difference is most noticeable in the first few minutes after grinding — and most detectable if you're brewing a method that emphasizes clarity and aroma, like pour-over or French press.
If you grind right before you brew, you capture that window. If your workflow supports it, and you have a reasonable grinder, whole bean is the better option.
When pre-ground is genuinely fine
Pre-ground gets a bad reputation that isn't entirely earned. A few honest scenarios where it holds up well:
You brew drip coffee every morning and finish a bag within two weeks. Ground coffee stored in a sealed, airtight container at room temperature stays fresh enough that most people wouldn't notice a meaningful difference over that timeframe.
You don't want to buy or maintain a grinder. A decent burr grinder costs $50 to $150. If that investment doesn't make sense for your setup, pre-ground from a roaster who grinds fresh at order time — rather than grinding months in advance — is a reasonable alternative.
You're making cold brew. Cold brew's long steep time and room-temperature extraction are forgiving enough that pre-ground works well. The difference between fresh-ground and pre-ground in a 16-hour cold brew is minimal.
Grind size matters more than most people realize
If you buy whole bean and grind at home, grind size is the most important variable — more than the grinder itself.
Different brew methods require different grind sizes because they control how long water is in contact with the coffee and how easily it flows through. A coarse grind slows extraction; a fine grind speeds it up. Get this wrong and the method fails regardless of bean quality.
A rough guide: French press needs a coarse grind — roughly the texture of coarse sea salt. Drip coffee works with medium grind. Pour-over sits between medium and medium-fine depending on your kettle speed. Espresso requires fine, consistent grinding — this is where grinder quality actually matters, and a cheap blade grinder won't cut it.
If you use a drip machine and switch between whole bean and pre-ground, ask for a medium grind. It's the most forgiving.
The practical answer
River Moon sells both whole bean and pre-ground because both are legitimate choices. If you have a grinder and the habit, buy whole bean — you'll taste the difference. If you don't, buy pre-ground, store it sealed, and finish the bag within a few weeks. Either way, freshness at the roasting level matters more than what happens at the grinding level.
