Postcard Teas Tea House in Mayfair: Rare Leaf Tasting

Postcard Teas is an unusually direct answer to a London tea house search: the shop sits at 9 Dering Street, beside New Bond Street in Mayfair, and the official site describes its drop-in store as open Monday to Saturday from noon to 6:30pm. That narrow window shapes the visit. Come for a deliberate tasting rather than a long café session, because the room is built around leaves, notes and conversation.

The address is easy to miss among Mayfair's polished façades. Look for a compact storefront rather than a grand dining room; inside, shelves hold small batches from individual gardens and a counter keeps the experience close to the tea itself. The store's postcard theme is practical, not decorative: a tasting can feel like choosing a letter to send, with each packet carrying a place, season and style.

Start by saying what you usually drink and what you want to try next. The staff can steer a black-tea drinker toward a fragrant Chinese leaf or show how a lightly oxidised oolong differs from a breakfast blend. Ask for a small comparison rather than naming a favourite too soon. The useful detail is the contrast between infusions: the first cup can be floral, while the second reveals texture and finish.

The most rewarding habit here is to slow the first sip. Hold the cup near the rim, smell before drinking, and pay attention to how the flavour changes as the tea cools. You do not need specialist vocabulary. Describing a leaf as toasted, stone-fruited, grassy or mineral gives the team enough to suggest another origin, and the conversation makes a tiny shop feel more generous than its footprint.

Postcard Teas works particularly well for a solo stop or a pair who want to leave with a precise gift. It is less suited to a loud catch-up, a laptop afternoon or a large group. The counter encourages one person to taste while another reads labels, and the quiet makes it possible to hear the brewing explanation. If you want a full meal, treat the tea as the first stop rather than the entire plan.

The shop's small-lot focus is the reason to skip a generic tea bag purchase here. Choose one leaf you can brew repeatedly at home, then add a second packet with a different oxidation or region. The staff's guidance is more valuable than buying five unconnected flavours. A postcard-sized note with the brewing suggestion also makes the purchase feel intentional when you are giving it away.

Because the public hours are concentrated in the afternoon, arriving near opening gives you the calmest conversation and the broadest chance to browse without another customer waiting. Mid-afternoon is still workable, but a tasting can take longer when the counter is busy. There is no reason to rush a line: if the shop is occupied, read the labels outside and return after a Mayfair errand.

The unspoken rule is to handle the tins gently and let the person tasting finish a thought before asking for another sample. This is a retail tea room, not a bottomless afternoon-tea service. Buy something if you spend time with the team, and keep bags tucked away while leaves are being measured. That small courtesy protects the relaxed rhythm that makes the shop distinctive.

For a neighbourhood loop, leave Dering Street toward New Bond Street, then angle east through Burlington Arcade before cutting toward the Royal Academy. The route gives you polished shopfronts, quiet lanes and a change of scale from the intimate tea counter. If you want greenery, continue toward Green Park; if rain arrives, shorten the walk and spend more time comparing leaves at home.

A practical plan is simple: put the shop before dinner, keep your visit inside the posted midday-to-early-evening window, and bring a small bag for delicate packets. The address belongs to Mayfair, not Soho, so choose the Bond Street approach and allow a few minutes to find the doorway. A camera is useful for the tins and street, but the best souvenir is a brewing note you will actually follow.

Karpo APP is useful when you want to extend this very specific stop into a tea-focused afternoon. Ask for another nearby shop, a quiet route to the Royal Academy, or a place for a later meal without losing the calm pace. The app can help sequence the walk, but the tasting decision should remain yours: one leaf that surprises you is better than a shelf of safe choices.

Who should make the trip? Curious drinkers, thoughtful gift hunters and anyone who prefers a measured conversation to a crowded café. Who should skip it? Visitors expecting a full brunch, unlimited refills or a late-night room. Postcard Teas earns its place in a London tea house shortlist by making a small address feel like a map of tea-growing places, one careful cup at a time. The strongest detail to carry home is not a claim about being an expert; it is a repeatable method. Note the leaf name, the shape of the dry leaves, the colour of the first liquor and the moment the aroma changes. When you brew it again, use the note as a starting point and adjust one variable at a time. That approach turns a Mayfair purchase into a small personal archive. It also gives you something useful to tell a friend who asks what to buy. Postcard Teas is generous to visitors who are specific, patient and willing to learn in public. The shop feels less like a retail stop than a tiny editorial desk for tea, where every packet has an origin story and every question can lead to another cup. Leave with one decision, not a dozen: the leaf that made you pause is usually the one worth carrying.