Calming Tea for Stress: What Helps and How to Choose

A calming tea will not fix stress, but the right cup, made at the right time, can give you a few quiet minutes and a cue to slow down. The best-supported choices are caffeine-free infusions such as chamomile, passionflower, lavender and peppermint, drunk as part of a routine rather than as a treatment. Below we cover what the research actually says, how the main herbs differ, what to check for safety, and where mushroom tea fits in.

TL;DR

• Chamomile, passionflower, lavender, rose and green tea have provisional evidence for easing stress, but researchers say more trials are needed.
• Choose caffeine-free infusions, especially in the afternoon and evening, because caffeine lingers in the body for hours.
• Herbal products can interact with medicines. Check with a pharmacist or GP if you take regular medication, are pregnant or are unsure.
• The ritual counts as much as the herb: a fixed time, a warm mug and no screen.
• If stress is not easing, tea is not the answer. Speak to your GP practice.

Table of Contents

• What the evidence says about tea and stress
• The main calming teas compared
• Caffeine, stress and why the swap matters
• Other drinks for a calmer day
• Where mushroom tea fits
• Our perspective
• Safety: what to check before you drink
• How to make a calming tea ritual that works
• When tea is not enough
• Try a calming mushroom tea
• FAQ
• Sources

What the evidence says about tea and stress

The honest summary is “promising, not proven”. A 2023 review of tea and herbal infusions found provisional evidence that green tea, chamomile, lavender, rose, jasmine and passionflower may help people relax and may ease stress and anxiety, while stressing that further trials are needed. The same review described the evidence for German chamomile tea as emerging and promising, again calling for more randomised trials.

That is a long way from “this tea treats anxiety”, and any product page that says so is overreaching. What the research does support is a modest idea: a warm, caffeine-free drink, taken deliberately, is a low-risk way to build a calmer pause into your day.

Green tea is a slightly different case. It contains the amino acid L-theanine, and a 2020 review found that 200 to 400 mg a day of L-theanine may help reduce stress and anxiety in people under stressful conditions. Note the wording: that is supplementation at a stated dose, not a promise about a single cup. Green tea also contains caffeine, so it suits the morning better than the hour before bed.

The main calming teas compared

Most people searching for a calming tea want to know which herb to try first. This table sets out the common options in plain terms, using what the sources above support.

The descriptions of chamomile and peppermint come from the UK Tea & Infusions Association, which notes that chamomile has traditionally been used to help induce sleep and that peppermint has a distinctive menthol taste. For valerian and passionflower, the Sleep Foundation reports a long history of use for insomnia and nervousness, and flavonoids in passionflower that may help reduce anxiety symptoms, with one study suggesting a single cup may help sleep. On lavender, available research on its efficacy as a sleep aid is limited, so enjoy it for the aroma and the ritual rather than a guaranteed effect.

Chamomile: the sensible first try

If you have never bought a calming tea, start with chamomile. It is widely available, gentle in flavour, naturally caffeine-free and has the most encouraging research of the group. Drink it after dinner or whenever the day starts to feel loud.

Peppermint: calm for the daytime

Peppermint is the one to reach for at your desk. It is bright and clean rather than sleepy, so it works as a reset in the afternoon when you would otherwise make a third coffee.

Passionflower and valerian: the evening pair

Both are traditionally linked with winding down and sleep. Both are also stronger herbs than chamomile, so read the safety section below before making either a nightly habit.

Caffeine, stress and why the swap matters

A calming tea is often most useful for what it replaces. Caffeine is a stimulant, and when you already feel wired, another strong coffee rarely helps. Oxford Health NHS Foundation Trust’s guidance for young people suggests swapping coffee, fizzy drinks or energy drinks for herbal tea, milk or water. It also notes that caffeine has a half-life of around five hours and can affect how long it takes to fall asleep, how long you sleep and the quality of that sleep, and advises avoiding caffeinated drinks at least five to six hours before bed.

That is useful practical arithmetic. If you go to bed at 11pm, your last caffeinated drink belongs before about 5pm, and from then on a caffeine-free infusion is the better choice.

This is not a case against caffeine. The UK Tea & Infusions Association points out that moderate consumption of 300 to 400 mg of caffeine a day poses no health risks for the vast majority of people. The point is timing and how you feel. If your heart races or your thoughts spin after caffeine, it is a reasonable experiment to cut back. The same source confirms that many herbal and fruit infusions, such as chamomile and rooibos, are naturally caffeine-free.

If you are cutting back and want ideas beyond tea, our guides to tea without caffeine and caffeine-free coffee alternatives cover what counts as caffeine-free and what to drink instead.

Other drinks for a calmer day

Tea is not the only option. The best drinks for stress share a few traits: no or low caffeine, no large hit of sugar, and something that slows you down to drink.

• Warm milk or a milky alternative. Oxford Health’s guidance lists milk among the swaps for caffeinated drinks.
• Water. Plain, but often what you actually need. Dehydration is an easy thing to overlook on a hectic day.
• Rooibos. Naturally caffeine-free, per the UK Tea & Infusions Association, and rounder and sweeter than most herbal infusions.
• Fruit infusions. Caffeine-free and a good cold-weather alternative if you dislike floral flavours.
• Mushroom teas. A newer category, covered below.

Match the drink to the moment. A quick unwind at 3pm is a different job from a wind-down before bed, and your own taste matters too: a tea you dislike will not become a ritual.

Where mushroom tea fits

Mushroom tea is an infusion made with dried mushrooms and botanicals. Reishi is the species most often associated with relaxation and evening routines. We should be straight about the evidence: the research reviews above cover teas such as chamomile and passionflower, not mushroom blends, so we do not claim that mushroom tea treats stress. What we can say is what goes into our cup and why people choose it.

MycoBrew blends are made in the UK with 40% fruiting body mushrooms, combined with aromatic botanicals. They are organic, naturally caffeine-free, lab-tested, and come in biodegradable pyramid tea bags. The aim is a smooth, non-gritty brew where the mushroom supports the flavour rather than overpowering it.

For the evening, our Reishi Botanical Tea is the blend built around rest and relaxation. If you want to read the background first, we have written about reishi tea benefits and what the evidence says and about reishi as a sleep and stress ritual. Not sure which blend suits you? Our guide to choosing a MycoBrew tea walks through the range.

Our perspective

We make mushroom tea, so you might expect us to tell you it is the answer to stress. It is not, and we would rather say so. Stress has causes, usually workload, worry, poor sleep or too little time to yourself, and a cup of tea does not remove any of them.

What a good tea does is give you a reason to stop. We built MycoBrew around that idea: a drink that tastes good enough to look forward to, has no caffeine to work against you, and takes four or five minutes to make properly. Those minutes are the product as much as the leaves and mushrooms in the bag.

That is also why we use a high share of fruiting body mushrooms and pay attention to taste. A tea you find gritty or medicinal will sit in the cupboard. A tea you enjoy becomes a habit, and a habit is what changes how an evening feels. We lab-test our blends and are careful not to promise medical outcomes, because a calm ritual is a fair claim and a cure is not.

If you take medication or have a health condition, check any herbal product with a pharmacist first, ours included.

— Leroy

Safety: what to check before you drink

“Natural” does not mean “no side effects”. The Medicines and Healthcare products Regulatory Agency (MHRA) has noted that some herbal products can have clinically important interactions with conventional medicines. Its example is St John’s wort, known to interfere with a wide range of drugs, including antidepressants and hormonal contraceptives.

A mild chamomile bag is a different proposition from a concentrated herbal blend, but the principle holds. Be particularly careful in these situations:

1. You take regular medication. This includes antidepressants, sleeping tablets and hormonal contraceptives. Ask a pharmacist before adding stronger herbs such as valerian.
2. You are pregnant or breastfeeding. Ask your midwife, GP or pharmacist before choosing any herbal tea.
3. You have a planned operation. Tell your surgical team about any herbal products you use.
4. You are buying a “strong” blend. Which? advises caution with “extra-strength” or unverified herbal sleep blends, particularly those marketed on social media, as they may contain hidden or unsafe ingredients.

It also helps to know that in the UK, the MHRA introduced the Traditional Herbal Registration (THR) scheme in 2005 so that herbal medicinal products meet specific safety and quality standards, as Which? explains. A food-category tea does not carry a THR number, so treat it as a drink, not a medicine. Be wary of any label that claims to treat insomnia or anxiety.

How to make a calming tea ritual that works

The tea is only half of it. A routine is what turns a drink into a signal for your body to slow down. Sleep guidance from the NHS supports the surrounding habits: keep a regular sleep routine, get physically active and try self-help CBT techniques to manage worries and fears. Tea sits alongside these, not in place of them.

A simple five-step ritual

1. Pick a fixed time. Straight after dinner, or when you finish work, works well. Repetition is what builds the association.
2. Use fresh, freshly boiled water and follow the steeping time on the pack. Over-steeping makes many herbs bitter.
3. Put your phone in another room. Four minutes without scrolling is the real point of the exercise.
4. Drink it sitting down. Not on the way to the next task.
5. Notice the cup. Warmth, aroma, taste. If your mind wanders to your to-do list, bring it back to the mug.

Matching the tea to the time of day

• Mid-morning or early afternoon: peppermint, or a green tea if you want some caffeine.
• Late afternoon: a caffeine-free blend, to stay clear of that five to six hour window before bed.
• Evening: chamomile, lavender, or a reishi blend.
• Before bed: keep it small. A huge mug and a 2am bathroom trip will not help.

As a ritual, a tea should not be presented as a treatment for insomnia. If you are regularly awake at night, the fix is in the wider habits: consistent bedtimes, less stimulation, less caffeine late in the day.

When tea is not enough

Some stress is a normal response to a hard week. Some is not. If you are struggling to cope, or the things you have been trying are not helping, NHS inform advises contacting your GP practice. It also lists options such as online courses and stress management groups that your GP can point you to.

If stress is affecting your sleep, appetite, work or relationships for weeks at a time, or you feel panicky or hopeless, do not wait to see whether a new tea makes a difference. Book an appointment. A herbal infusion is a pleasant companion to proper support, never a replacement.

Try a calming mushroom tea

If you want a caffeine-free evening drink that feels like a ritual rather than a chore, start with our Reishi blend. It combines reishi fruiting body, making up 40% of the blend, with aromatic botanicals, in biodegradable pyramid tea bags. It is made in the UK and lab-tested, and you can buy it as a one-off order or on subscription with a discount. See the MycoBrew Reishi Botanical Tea, or browse the full range of mushroom botanical teas.

FAQ

What is the best tea for stress and anxiety?

There is no single best tea. Chamomile has the most encouraging evidence, with a 2023 review calling it emerging and promising, while passionflower, lavender and green tea also have provisional support. Pick one you enjoy and drink it regularly, and treat it as a comfort, not a treatment.

Can I drink calming tea every day?

For most healthy adults, a cup or two of a mild caffeine-free infusion such as chamomile is a common daily habit. Stronger herbs such as valerian are more likely to interact with medicines, so check with a pharmacist or GP before taking them regularly, and especially if you take regular medication or are pregnant.

Does caffeine make stress worse?

It can for some people. Caffeine has a half-life of around five hours and can disrupt sleep, which in turn makes stress harder to handle. Moderate intake of 300 to 400 mg a day is considered fine for most people, so the question is about how you feel and when you drink it.

What other drinks help with stress?

Warm milk, water, rooibos and fruit infusions are sensible caffeine-free choices, and herbal and mushroom teas add flavour and ritual. None is a medical remedy. The habit of pausing to drink something warm is where much of the benefit lies.

When should I see a doctor about stress?

Speak to your GP practice if you are struggling to cope or the methods you are trying are not helping. Do not rely on tea if stress is affecting your sleep, work or mood over a prolonged period.

Sources

• Tea and Herbal Infusions, Psychological Stress, Anxiety (2023 review)
• The Effects of Green Tea Amino Acid L-Theanine Consumption (2020)
• UK Tea & Infusions Association: varieties of infusions
• UK Tea & Infusions Association: FAQs about infusions
• Sleep Foundation: The 7 Best Teas for Sleep and Relaxation
• Herbal Tea for Sleep: What the Research Shows
• Oxford Health CAMHS: Diet
• MHRA: Safety, regulation and herbal medicines
• Which?: Do Sleep Teas Actually Work?
• NHS Every Mind Matters: Fall asleep faster and sleep better
• NHS inform: What to do if you are struggling with stress

Recommended

• Reishi Mushroom Tea: Your Natural Sleep & Stress Solution
• Which MycoBrew Tea Is Right for You? A Complete Guide
• Reishi Tea Benefits: What the Evidence Says in 2026 for Mycobrew.
• MycoBrew Reishi Botanical Tea | Calm & Relaxation Mushroom Tea