When you're comparing two matcha products, line them up side by side. First, look for harvest time. If one says 'first harvest' and the other doesn't, that's a clear winner. Second, check the origin. A specific region beats a vague 'Japan' every time. Third, glance at the color—fresh matcha is vibrant green, not dull yellow-brown.

Don't get caught up in tasting notes. 'Umami' and 'floral' are nice buzzwords, but they're subjective. Instead, try a small sample if you can. Brew both, taste them, and decide for yourself. That's the only truly reliable comparison.