Caffeine is useful when you want alertness, awkward when you want a quiet evening. This planner does not estimate a precise milligram dose in your cup. Tea varies too much by leaf, amount, temperature, steep time and repeat steeps. Instead, it helps you make a conservative evening choice: caffeine-free, very light, or move this tea earlier.
What this planner does
- It treats naturally caffeine-free herbals as the cleanest late-day choice.
- It is stricter if you mark yourself caffeine-sensitive.
- It points pregnancy, breastfeeding, medication and health-condition questions away from a tea chart and toward a qualified clinician.
- It keeps the language non-medical: a calm cup is a ritual, not a treatment.
Source boundaries
The FDA caffeine overview uses 400 mg per day as a common adult reference point while noting that sensitivity varies. MedlinePlus describes caffeine as a stimulant and notes that its effects can last for several hours. Those facts are why the planner uses a buffer before bedtime and stays cautious near sleep.
Pair it with the rest of TeaForCalm
Once the planner says "caffeine-free" or "low", use the Tea Picker to filter by caffeine. If you want the evening to feel like a habit instead of a health project, follow the evening wind-down ritual and save what worked in the private journal.