When you're evaluating coffee for wholesale, you're making decisions that affect your business. Don't let a single flat brew tank a lot that might be great. Brew each sample at least twice, and if the aroma is off, check your process before blaming the beans. Also, be consistent: use the same grind size, ratio, and water temperature for every sample, so you're comparing apples to apples.

And a quick note on water: if you're in a new city, the water might be completely different. That's a big variable. If you can, bring a small water filter or buy bottled water with a balanced mineral profile. It's worth the extra hassle.