https://arbatea.com/en/blog/Articles about quitting coffee, caffeine and switching to tea, with sources.en https://arbatea.com/en/blog/is-decaf-coffee-caffeine-free/https://arbatea.com/en/blog/is-decaf-coffee-caffeine-free/Thu, 29 Oct 2026 00:00:00 +0000Decaf coffee has little caffeine, but not none: figures from a study (0–13.9 mg per 473 ml), the EU rule and who should care about the leftovers. https://arbatea.com/en/blog/tea-during-pregnancy/https://arbatea.com/en/blog/tea-during-pregnancy/Tue, 27 Oct 2026 00:00:00 +0000Which tea is okay during pregnancy: the caffeine limit (up to 200 mg a day), black, green, matcha, decaf and herbal teas. https://arbatea.com/en/blog/caffeine-and-sleep/https://arbatea.com/en/blog/caffeine-and-sleep/Mon, 26 Oct 2026 00:00:00 +0000How much caffeine shortens sleep and delays falling asleep: numbers from two meta-analyses (22 and 24 studies), the role of dose and timing, and the limits of the research. https://arbatea.com/en/blog/coffee-or-tea-in-the-morning/https://arbatea.com/en/blog/coffee-or-tea-in-the-morning/Sun, 25 Oct 2026 00:00:00 +0000Coffee or tea in the morning: which has more caffeine, whether coffee gives more energy, what a caffeine crash is and which teas to try instead. https://arbatea.com/en/blog/how-to-quit-coffee/https://arbatea.com/en/blog/how-to-quit-coffee/Sat, 24 Oct 2026 00:00:00 +0000How to quit coffee without the headache: cut caffeine gradually, swap cups for tea, and know what to expect in the first few days. https://arbatea.com/en/blog/caffeine-withdrawal-how-long/https://arbatea.com/en/blog/caffeine-withdrawal-how-long/Sat, 24 Oct 2026 00:00:00 +0000How long caffeine withdrawal lasts: symptoms, a day-by-day timeline (onset 12–24 hours, peak 20–51 hours, 2–9 days) and ways to ease it.