Hello lovelies,
there has been a pot of green tea on my desk for years, and for a long time it was wonderful one day and bitter the next. The tea was never the problem: it was water that was too hot, a timer I forgot, and leaf measured by feel.
Here are the numbers that fix all three, for 12 types of tea in one chart, plus the 7 mistakes almost everyone makes. No products, no shopping list, just the method.
The chart: steep time, temperature and amount for 12 types of tea
All values are ranges: start in the middle and then change only one setting at a time, temperature or time, never both. Two or three pots later you will have your setting.
| Type of tea | Water temperature | Steep time (first infusion) | Leaf per 8-oz cup · per liter | Infusions |
|---|---|---|---|---|
| Green tea (sencha, bancha) | 160–175 °F (70–80 °C) | 1–2 min | 1 tsp (2.5–3 g) · 10–12 g | 2–3 |
| Gyokuro | 120–140 °F (50–60 °C) | 1.5–3 min | 2 tsp (5 g) · 20 g | 2–3 |
| Hojicha (roasted green) | 195 °F (90 °C) | 1–2 min | 1 heaping tsp (2.5 g) · 10 g | 2–3 |
| Jasmine tea | 165–175 °F (75–80 °C) | 2–3 min | 1 tsp (2–3 g) · 10 g | 2–3 |
| White tea | 160–175 °F (70–80 °C) | 2–4 min | 2 tsp (2–3 g) · 8–12 g | 2–3 |
| Oolong | 185–195 °F (85–90 °C) | 2–3 min | 1 tsp (3–4 g) · 12–15 g | 3–4 |
| Black tea | 200–212 °F (95–100 °C) | 3–5 min | 1 tsp (2–3 g) · 8–12 g, strong 14 g | 1–2 |
| Pu-erh (ripe) | 200–212 °F (95–100 °C) | rinse 10 s, then 20 s–2 min | 1.5–2 tsp (4–5 g) · 15–20 g | up to 4 |
| Herbal infusion | 212 °F (100 °C), full boil | 5–10 min, covered | 1–2 tsp (2.5–4 g) · 10–15 g | 1 |
| Fruit infusion | 212 °F (100 °C), full boil | 8–10 min | 1–2 heaping tsp (4–5 g) · 15–20 g | 1 |
| Rooibos | 212 °F (100 °C) | 5–7 min | 1 heaping tsp (4 g) · 15–18 g | 1–2 |
| Matcha | 160–175 °F (70–80 °C) | whisk 20–30 s | 1–2 g in 3 oz (80 ml) | – |
Rule of thumb: 212 °F (100 °C) for black tea, herbal and fruit infusions, rooibos and pu-erh; 195 °F (90 °C) for oolong and hojicha; 175 °F (80 °C) for green, white and jasmine tea and matcha; 140 °F (60 °C) for gyokuro.
Which tea is for you?
A breakfast blend or Assam for the morning, hojicha or genmaicha instead of coffee, rooibos in the evening, sencha or gyokuro if green tea keeps turning bitter, and a sampler of several types if you are just starting.
Loose leaf or tea bags?
Loose leaf when taste matters: whole leaf gives more aroma, can be steeped 2 to 4 times, and you can see what you are buying. Bags only win on speed.
Bags usually hold finely cut tea that steeps fast and strong and has nothing left for a second infusion. Whole leaf opens more slowly, tastes more layered, and with green tea, oolong and pu-erh it carries several infusions. All you need to try loose leaf is a strainer or a pot with an insert; everything else is in the chart.
How much loose leaf tea per cup?
One teaspoon of loose-leaf tea per 8-ounce cup, which is 2 to 3 g; for a liter, about a quart, 8 to 12 g, up to 14 g for a strong pot. The UK Tea & Infusions Association recommends 1 rounded teaspoon per cup; the German tea association adds that a teaspoon holds about 2 to 3 g.
The catch is volume: a spoon of tightly twisted black tea weighs more than a spoon of fluffy white tea, and rolled pearls weigh the most. That is why white tea says "2 tsp" in the chart. And for the pot: more leaf makes tea stronger, more time only makes it bitter.
What water temperature for which tea?
Black tea, pu-erh, rooibos, herbal and fruit infusions: a full boil, 212 °F (100 °C). Green, white and jasmine tea: 160 to 175 °F (70 to 80 °C). Oolong and hojicha: 185 to 195 °F (85 to 90 °C). Gyokuro: 120 to 140 °F (50 to 60 °C).
The UK Tea & Infusions Association puts black tea at 90 to 98 °C (194 to 208 °F) and green tea at around 80 °C (175 °F). The reason for the difference: the hotter the water, the more tannins (catechins) dissolve, and they are what makes green tea bitter; a 2025 study on Longjing green tea found 70 to 80 °C ideal for umami over bitterness. Black tea is oxidized, its tannins are part of its character, and it needs the heat.
For herbal and fruit infusions it is not about taste but about food safety: Germany's Federal Institute for Risk Assessment (BfR) advises pouring herbal teas with water at a rolling boil and steeping at least 5 minutes, because germs such as Salmonella are not killed reliably at lower temperatures; the Bavarian consumer advice center applies the same rule to fruit infusions.
175 °F without a thermometer: bring a quart of water to a rolling boil, take the lid off, wait 5 to 10 minutes depending on the pot, then pour. Or pour the boiling water into the empty teapot first; every transfer takes noticeable heat out.
How long to steep tea, and how many times can you re-steep?
Green tea 1 to 2 minutes, white tea and oolong 2 to 4, black tea 3 to 5, herbal and fruit infusions 5 to 10; green tea, oolong and pu-erh can be re-steeped 2 to 4 times, black tea usually once.
With green tea, "fresh" and "bitter" are often half a minute apart: set a timer, do not guess. Black tea turns harsh after 5 minutes; make it stronger with more leaf, not more time. Tea bags steep faster than whole leaf, so stay at the low end of the range.
Re-steeping: keep the first infusion short, or the second has nothing left. Green and jasmine tea 30 to 60 seconds the second time with slightly hotter water; oolong and hojicha about 1 minute; pu-erh in short infusions, discard the first after 10 seconds, then 20 to 30 seconds, up to 4 times.
A special case is East Frisian tea from northern Germany, where, according to the German tea association, more tea is drunk than anywhere else in the world. The method: a strong Assam blend, 5 minutes, poured over a lump of rock sugar, a spoonful of cream let run down the side of the cup, never stirred. Oat or almond milk makes the same cloud.
What water is best for tea?
Soft to moderately hard water, freshly drawn and boiled only once; very hard water leaves the cup cloudy and flat.
That is the advice of the UK Tea & Infusions Association (freshly drawn, never reboiled) and the German tea association (soft, low-lime, boiled once). Your utility's water quality report gives the hardness: the USGS calls water soft up to 60 mg/L of calcium carbonate, moderately hard to 120, hard to 180 and very hard above that. Up to about 120 mg/L is fine for tea; above that, a pitcher filter pays off, especially for green and white tea.
In Bali nobody drinks the tap water, so tea water comes from the gallon jug; since then I know that two waters change a green tea more than two teas do.
Cold brew and iced tea
Cold brew: 10 to 15 g of green, white, oolong or black tea per liter, 6 to 12 hours in the refrigerator, drink within 3 days; conventional herbal and fruit blends do not belong in cold water.
Cold water extracts fewer tannins, so the tea turns out soft and sweet. Green tea 6 to 8 hours, black tea and oolong 8 to 12, white tea overnight; always in the refrigerator, never on the counter (Iowa State University Extension). Herbal and fruit blends are not steam-treated and, per the Bavarian consumer advice center, should not be cold-brewed: brew hot, steep 8 to 10 minutes, chill, make it twice as strong and pour over ice. Which tea suits which iced tea is in my four iced tea recipes.
The 7 most common tea-brewing mistakes
Almost every disappointing cup traces back to one of these mistakes, and each has a fix.
| Symptom | Cause | Fix |
|---|---|---|
| Bitter, furry, harsh | Water too hot or steeped too long, usually both | Green tea at 160–175 °F, halve the steep time; pour black tea after 3 minutes |
| Thin and watery | Not enough leaf | More tea, not more time: 1 tsp per cup plus 1 for the pot |
| Cloudy, with a film on top | Hard, mineral-heavy water | Filtered or soft water, boiled only once |
| Green tea turns yellow-brown and tastes cooked | Boiling water on delicate leaf | Let the water cool 5 to 10 minutes with the lid off, then pour |
| Herbal tea tastes of nothing | Steeped too short, cup uncovered | 5–10 minutes with a lid or saucer on top |
| Second infusion is empty | First infusion too long | Shorter first infusion, later ones 30–60 seconds |
| Tea tastes like the kitchen cupboard | Stored next to coffee or spices | Airtight tin or dark glass, cool, dry, stored apart |
Frequently asked questions
How long should I steep tea?
Green tea 1 to 2 minutes, white tea and oolong 2 to 4, black tea 3 to 5, herbal and fruit infusions 5 to 10 minutes. When re-steeping, keep the first infusion short. When in doubt, set the timer to the low end and taste.
Why does my tea taste bitter?
Water that is too hot or a steep that is too long pulls out too many tannins (catechins). Green tea at 160 to 175 °F (70 to 80 °C) and under 2 minutes; black tea poured after 3 to 4 minutes. More leaf, not more time, makes tea stronger.
Can you use boiling water for green tea?
You can, but it turns bitter and loses its sweetness. The UK Tea & Infusions Association recommends around 80 °C (175 °F), and a 2025 study on Longjing green tea found 70 to 80 °C ideal. Let boiling water stand 5 to 10 minutes with the lid off, then pour.
How much loose leaf tea per cup?
One teaspoon, about 2 to 3 g, per 8-ounce cup; 8 to 12 g per liter or quart, which is 4 to 5 teaspoons. Strong breakfast blends up to 14 g, fruit infusions and rooibos 15 to 20 g because the pieces are heavier.
Can you steep tea leaves more than once?
Yes: green, white, jasmine and oolong 2 to 4 times, pu-erh in short infusions up to 4 times. Later infusions 30 to 60 seconds with slightly hotter water. Black tea mostly gives color the second time; herbal and fruit infusions are steeped once.
How much caffeine is in tea?
An 8-ounce cup of brewed black tea has about 48 mg of caffeine and green tea about 29 mg (Mayo Clinic); rooibos and most herbal and fruit infusions are caffeine-free. The European Food Safety Authority considers up to 400 mg a day safe for healthy adults and up to 200 mg for pregnant women.
Lovelies, remember one thing: the tea is not to blame when it turns bitter; the water was too hot, or it steeped a minute too long. With the chart and a kitchen scale you have both under control. On Sundays that comes with an apple almond babka with cinnamon. On weekdays it is oatmeal, which works with the same three settings: amount, water, time. How to make oatmeal the right way is in the neighboring post. Tell me in the comments: which tea do you drink most, and at what temperature?
Yours, Verena
Sources
- 1.European Food Safety Authority (EFSA) · Caffeine
- 2.Mayo Clinic · Caffeine content for coffee, tea, soda and more · 2025
- 3.UK Tea & Infusions Association · The Perfect Brew
- 4.German Tea & Herbal Tea Association · Zubereitung
- 5.German Federal Institute for Risk Assessment (BfR) · Press release 37/2005 on herbal teas and boiling water · 2005
- 6.Verbraucherzentrale Bayern · Was ist Cold Brew Tee? · 2023
- 7.USGS Water Science School · Hardness of Water
- 8.Deng et al., Food Chemistry: X · DOI 10.1016/j.fochx.2025.102635 · 2025
- 9.Xu et al., Food Chemistry · DOI 10.1016/j.foodchem.2018.03.042 · 2018
- 10.Iowa State University Extension · Iced Tea Safety · 2018
