Tired of making tea: tap or bottled water?

Wash, fill, add tea, wait, discard, wash again: daily tea becomes a tiny home factory. A Japanese municipality reported FY2024 average supply revenue of ¥185.85/m³ (1,000 L), about ¥0.186/L, ¥0.37/2 L and roughly ¥136/year at 2 L/day. Assuming ¥80 per 2 L bottle gives ¥29,200/year. The ¥136 figure shows scale, not the actual household bill, because the published number is a system average. Bottles buy convenience but add carrying, storage and waste. If brewing is the nuisance, remove brewing: drink tap water or chill it in a clean container. Japanese tap water is quality-controlled and disinfected; after long non-use let it run first, while filtered water should not be stored too long. Cheapest: tap. Convenience: bottles. Flavor plus work: homemade tea. If tea is not the goal, shut down the home tea factory.

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