This process isn't just for matcha. The same principles apply to any product where freshness matters—coffee, spices, even tea leaves. Always check harvest dates, not just expiry dates.

Another lesson: don't judge a product on its first impression. My friend almost gave up on matcha entirely because of one bad purchase. But once she understood the color cues, she could spot quality in seconds.

Finally, trust your eyes, but verify with your taste. Color is a shortcut, but flavor is the real test. If it looks good but tastes flat, something's off.