Brewing Tea Away From Home: Hotel Rooms and Offices

Brewing tea away from home fails for four reasons: the water is the wrong temperature, the vessel is the wrong shape, the leaf has no room and there is nowhere to put the spent leaf. Each has a cheap solution, and the smallest kit that solves all four is a small gaiwan, a thermos and a bag for the used leaf.

The problem is not the tea. A good leaf in a hotel room at 75 Celsius in a paper cup still makes a poor cup, and the same leaf with a thermos and a gaiwan makes a good one at 3 g per 150 ml and 90 seconds. and the same leaf with a thermos and a gaiwan makes a good one.

The four constraints

The thermos does most of the work. Boil in the hotel kettle, pour into the thermos, wait for the temperature to fall, and the water stays at that temperature for hours: fill it boiling in the evening and it is near 80 °C by morning. That solves the temperature problem and the reheating problem together.

A gaiwan weighs little, costs little and travels without breaking if it is wrapped. It gives a proper vessel and a place to see the leaf, which is most of what a hotel room lacks.

What actually works in a hotel room

Fill the thermos with boiling water in the evening and let it cool to 80 Celsius by morning. Pour it over four grams of leaf in the gaiwan, steep ninety seconds, and drink. Repeat three times from the same leaf. That is 4 g per 120 ml, and the same ratio scales to 3 g per 150 ml if the gaiwan is larger.

Wash the gaiwan in the bathroom sink and put the spent leaf in the bag. That is a complete session in a room with no kitchen.

The method works because the thermos replaces the kettle’s absence of control. A hotel kettle has one setting, and a thermos converts it into a variable one.

The same logic applies on a train, where hot water is available and a thermos keeps it usable. A drinker who travels often will find the kit pays for itself in a week.

• Four constraints: temperature, vessel, leaf room, spent leaf.
• A thermos solves temperature and reheating together.
• A gaiwan is light, cheap and travels wrapped.
• A sealed bag for spent leaf solves the last problem.
• The kit works in a hotel, an office and on a train.
• The problem is the circumstances, not the tea.

The office version

An office has a kettle and a desk, which is more than a hotel room has. The problem there is time and visibility rather than equipment.

A small gaiwan at a desk is conspicuous in some workplaces and unremarkable in others. A lidded cup with a basket is less conspicuous and gives most of the same result.

The office constraint that matters most is the second infusion. A drinker who leaves the leaf in the cup and tops it up gets an over-steeped cup by mid-morning; one who removes the basket gets a clean cup and a usable second steep.

That single habit, removing the leaf, is the difference between office tea that is worth drinking and office tea that is not.

What to leave at home

The tray, the tools and the pitcher. All three are for a session at a table with time, and none of them solves a problem that a hotel room or a desk presents.

The one exception is a small pitcher if the drinker is brewing for two people. It is the only piece of the full set that has a function away from home.

Everything else is weight in a bag. A drinker who travels with a full gongfu set is carrying furniture.

The kit that works is small enough to forget in a bag and cheap enough to lose. That is the right standard for travel equipment.

The water problem in detail

A hotel kettle boils and stops. There is no temperature setting and no way to hold water at 80 Celsius, which is what a green tea needs.

The thermos is the fix. Boil in the kettle, pour into the thermos, and the water cools slowly to a usable temperature and then stays there for hours. A thermos at 82 Celsius after two hours is exactly right for a green tea.

The alternative is bottled water at room temperature and a kettle for a short top-up, which is fiddly and works. The thermos is simpler.

That single piece of equipment does more for travel tea than any other, and it costs less than a tin of the tea it is used for.

What the paper cup costs

A paper cup is thin, uninsulated and lined. It loses heat fast, which drops the water below the brewing range within a minute and produces a thin cup from good leaf.

It also has no lid, so the aroma escapes and the leaf cannot steep evenly. It is a container for drinking, not for brewing.

A small gaiwan or a lidded cup solves all three problems and weighs almost nothing in a bag.

A drinker who has only ever had hotel tea in a paper cup has not yet tasted what the leaf can do, which is a reasonable thing to point out before blaming the tea.

One more piece of kit earns its place: a small scale. Four grams of leaf is a different volume depending on the tea, and a drinker without a scale will dose wildly between a dense ball oolong and a bulky silver needle.

A scale the size of a matchbox weighs nothing and removes the largest variable from a session away from home. It is the one piece of equipment that seems excessive and is not.

With a thermos, a gaiwan and a scale, a drinker can make a cup in a hotel room that is better than most tea shops serve, because the leaf is known and the water is controlled.

The leaf that travels well

A ball-rolled oolong is the best traveller. It is dense, so a small quantity goes a long way, it tolerates being carried in a bag, and it gives many infusions from one dose.

A strip oolong and a red tea also travel well. A delicate green tea and a silver needle are the worst, because they bruise in a bag, they fade quickly once opened, and they need cool water that a hotel kettle does not provide.

A compressed cake is a special case. It travels without damage and gives a long session from a small piece, and the one difficulty is breaking it up without the proper tool. A coin or a knife handle works.

The general rule is that density and durability beat delicacy when travelling. A tea that is robust at home is robust on the road, and a tea that needs care needs more care than a hotel room offers.

A drinker who travels with one tea should choose a ball oolong. It covers the widest range of circumstances and forgives the most mistakes.

A final note on what travel tea is for. It is not to reproduce a session at home, which is impossible in a room with one chair and a kettle. It is to have a decent cup in circumstances that would otherwise provide none.

Judged by that standard the kit is a success and any leaf will do. Judged against a proper session it will always fall short, and a drinker who accepts the smaller aim will enjoy the tea more.

• A thermos replaces the temperature control a hotel kettle lacks.
• A gaiwan replaces the paper cup.
• A scale removes the dosing variable.
• A sealed bag solves the spent leaf problem.
• A ball oolong is the best travelling leaf.
• The aim is a decent cup, not a perfect session.

That list is the whole of the travel method. Six items, of which three are equipment and three are habits, and none of them costs much or takes space.

One last point about the thermos is worth making. It should be filled with boiling water and left open for a minute before the lid goes on, so that the trapped air is not at room temperature. That one step adds an hour of usable heat.

Frequently asked questions