# Kulhad vs Mug vs Paper Cup Three cups, three very different teas. The science of heat retention, porosity and taste transfer — and an honest answer on whether the clay is worth switching for. - Site: - Last updated: 2026-06-18 - Outlets: 2 (Private Bus Stand, Gandhi Park), Bargarh, Odisha 768028 - Phone: +91 90408 08063 | Email: info@chaiyobar.com - Hours: 7:00 am - 11:00 pm, daily - Google rating: 4.8/5 from 59 reviews The cup is doing more work than most people give it credit for. Same tea, three vessels, and you can taste the difference every time. Here is the honest version, including the case where the clay is not worth it. ## The three cups compared **For hot chai in Odisha: unglazed terracotta, by a clear margin.** Paper cups are for speed and glass is for cold drinks. If you are drinking chai hot and slowly, the clay wins on both heat and taste. How each cup performs for hot chai Cup Heat retention Taste effect Best for Kulhad (unglazed terracotta) Excellent Earthy, rounds out the tea Hot chai, drunk slowly Mug (ceramic) Good Neutral Milky or malai chai Steel tumbler Poor Metallic after 10 minutes Coffee, fast drinking Glass Poor Clean, thin Cold drinks Paper Worst Thin, slightly papery Speed and volume ## Heat retention Porous terracotta is a slow conductor of heat. A steel tumbler transfers heat from the tea to your hand in about two minutes; a kulhad will still be too hot to hold comfortably well past that. In a city where you are walking between shops, that difference is the entire practical argument. It also means the tea keeps extracting as it sits. A steel cup of boiled chai goes flat and slightly bitter within fifteen minutes. A kulhad keeps tasting like it did when it was poured for closer to half an hour. ## Taste transfer Unglazed clay is slightly porous and it interacts with the liquid. Long-term drinkers describe it as an earthy or soil note, which sounds off and is not. The effect is to round off the sharp edges in a strong CTC chai — the same tea from a glass tastes more aggressive. A new, unseasoned kulhad gives you the cleanest version of this, because it has no history of tea oils in it. A cup that has been used for months tastes more distinctly of clay. ## Which one should you actually pick - **Hot, strong, boiled chai, drunk over 20 minutes:** kulhad. No contest. - **Milky malai chai:** mug. A full kulhad of heavy milk is genuinely heavy to hold, which is why we serve it that way too. - **Cold coffee or a cold shake:** glass. Clay holds heat in the wrong direction and your drink goes lukewarm. - **Carrying tea 30+ minutes:** a paper cup with a sleeve. Honest answer: clay loses to cardboard for travel. ## The paper-cup problem Paper cups are not a design choice, they are a throughput decision. Filling a paper cup takes a second; filling a kulhad, brushing it and setting it down takes four. At two hundred cups a day, that difference is the difference between one person behind the counter and two. So paper is reasonable in a railway-station counter and a poor choice in a place where people sit down. It is also why finding a genuinely good kulhad chai in a city is sometimes hard — the good version is slower to serve, and speed always wins when someone is doing the maths. ## Frequently asked questions ## Frequently asked questions **Is a kulhad cup better than a glass cup for tea?** For hot chai, yes, measurably. Unglazed terracotta holds heat longer than glass and adds an earthy note. For cold drinks, glass is better, because clay holds heat in the wrong direction and a cold drink in a kulhad goes lukewarm fast. **Does a kulhad cup keep tea hot longer?** Yes. Porous clay is a slower conductor than glass or steel, and a kulhad will still be uncomfortably hot several minutes after a steel tumbler has become drinkable. This is the practical reason people like kulhad chai. **Are kulhad cups dishwasher safe?** No. Unglazed clay absorbs detergent and gives it back into the tea. Wash with hot water and a brush, dry completely, and retire a daily-use cup after a few months. **Why do some tea shops serve chai in paper cups?** Speed and volume. A paper cup is faster to fill than a clay one and does not need washing, which matters at a counter doing hundreds of cups a day. The cost is that the tea tastes thinner and cools much faster.