Usually! She doesn't comment on that, she can imagine it going wrong.

"My merc captain - Kerowyn - used to make sun tea on maneuvers. That's where you leave tea and water out in the sun for however many hours and drink it at ambient temperatures. But she didn't ever really have to brew it hot herself. What's the first step?"

Need could certainly work it out on her own but it's better not to take the lead. Also she's not sure if the discs are left intact or have to be crumbled or something. The packed leaves do seem to work their way free of the compressed mass pretty easily.