Curry heat is one of the most misunderstood things about Indian food. People think it is a simple ladder from mild to nuclear, but it is actually several things layered on top of each other: capsaicin (the actual heat), chilli variety and quantity, the difference between chilli heat and warming spices, and the fact that heat is not standardised between restaurants. The result is that you walk into a kitchen thinking you know what "medium" means and walk out with something completely different from what you expected.
What makes a curry hot
Capsaicin. This is the alkaloid compound in chillies that creates the burning sensation. It is not a taste: your mouth does not taste "hot" the way it tastes sour or sweet. Capsaicin triggers pain receptors in your mouth, the same ones that react to actual heat. When a curry is "hot", it is because capsaicin is activating those receptors.
Chilli variety and quantity. Different chillies contain different amounts of capsaicin. Thai chillies are hotter than most Indian chillies. Scotch bonnets are hotter than Thai chillies. A vindaloo kitchen might use three varieties of chilli in one curry to build heat in layers rather than relying on one plant. They also control quantity: a pinch of very hot chilli creates more heat than a handful of a milder one, and the kitchen can calibrate the dish on the day depending on the batch of chillies.
Warming spices are not the same as chilli heat. Cinnamon, clove, black pepper, ginger and turmeric create a warming sensation on the back of the tongue and in the throat. This is not capsaicin: it does not trigger pain receptors: but it feels hot to your mouth. A rogan josh will have significant warming spice but almost no chilli heat, so it feels warmer as you eat it but will not make your mouth burn. This is important because someone who says "I do not like spicy food" might mean "I do not like chilli heat" or might mean "I do not like those warming spices." The answer is different for each.
The standard heat ladder in Malta
Most Indian restaurants in Sliema and beyond work from an understood heat ladder that runs something like this:
- Korma. Zero to almost-zero chilli heat. The heat you feel is warming spices like cinnamon and cardamom, which makes the curry taste warm and comforting rather than burning. Butter chicken sits here too, though it can vary between restaurants.
- Butter chicken. Mild chilli, more warming spices. Creamy, rich, and the gateway curry for people trying Indian food for the first time.
- Tikka masala. Mild chilli, smoky cream sauce. The most ordered curry in the UK and Malta because it hits a sweet spot between flavour and accessibility.
- Jalfrezi. Medium chilli heat, thick sauce with peppers and onion. A jump up from tikka masala but not yet properly hot.
- Rogan josh. Primarily warming spices: deep, aromatic, built on browned onion and yoghurt: with some chilli heat underneath. Feels warmer as you eat it rather than immediately burning your mouth.
- Madras. Proper chilli heat, no more warming spices masking it. "Medium" if you eat Indian food regularly, "hot" if you do not. The middle ground for people who find butter chicken too tame and vindaloo too much.
- Vindaloo. The hottest on the standard menu. Built on a Portuguese-influenced base of vinegar and garlic plus a serious amount of chilli. The vinegar makes it tangy as well as hot, which is important: the heat is not a flat burn across the whole mouth, it is layered.
Why does vindaloo sit at the top? Because of its history. Vindaloo came to India via Portuguese settlers in Goa in the 16th century. The "vin" comes from "vinho" (Portuguese wine), and the dish uses vinegar and garlic (and later, chillies) as its base. It is not actually the hottest curry you can make: a true phaal or bhut jolokia curry is hotter: but it is the hottest one that appears consistently on restaurant menus in Malta, and it has become the reference point for "very hot."
Why heat is not standardised between kitchens
The biggest trap when ordering Indian food is assuming that "medium" in one kitchen is "medium" in another. It is not. The Tiffin Box's "medium" might be hotter than Krishna's "medium" because they calibrate differently, or because one kitchen is more conservative with chilli for a given day's batch. Variables include:
- The source and age of the chillies. Older, dried chillies are often hotter than fresh ones.
- How much base sauce is made each day. A bigger batch might be calibrated differently than a smaller one.
- The kitchen's understanding of the customer base. A restaurant that has mostly tourists ordering vindaloo will calibrate it hotter than a restaurant that mostly has families ordering korma.
- Cultural differences. What counts as "spicy" in Malta is different from what counts as "spicy" in India or the UK.
The safest move when ordering is to ask the person taking your order: "I want something warm but not mouth-on-fire, what do you recommend?" Most restaurants are happy to translate their heat scale to your tolerance.
How to handle heat if you overshoot
You ordered vindaloo thinking you could handle it. You cannot. What actually works?
Milk or yoghurt. Capsaicin is fat-soluble and alcohol-soluble but not water-soluble. Drinking water makes the burn worse because it spreads the capsaicin around. A glass of milk or a spoonful of yoghurt coats your mouth and neutralises the capsaicin. Mint yoghurt chutney is specifically designed for this: it is cooling yoghurt plus the anaesthetic effect of mint.
Not bread or rice alone. Bread and rice soak up the spicy sauce but do not actually cool the burn. Pair them with cooling chutneys, yoghurt or raita.
Time. Capsaicin burns fade within 5 to 10 minutes. If you stay calm and drink milk, the burn diminishes. Panicking and drinking water makes it worse.
Not ice. Numbing your mouth with ice can feel like relief, but it fades when the ice does, and your body interprets the sudden warming as more heat. Dairy is better.
Ordering for a mixed table
You are ordering for four people: one who never eats spicy food, two who eat Indian food regularly, and one who wants to try vindaloo. What do you do?
Order korma or butter chicken for the nervous person. Order madras for the regulars. Order vindaloo for the vindaloo person, plus a side of mint yoghurt chutney so they can manage the heat. Order one extra rice and two extra naans. Split the curries across the table so everyone can taste everything.
The point is that nobody should be eating a full portion of a single curry. A proper Indian meal involves sharing and tasting. Order for 3 people when 4 are eating. Order curries at different heats. Add plenty of bread and rice to dilute the heat without losing the flavour.
Choosing your spice level at indoo
All of our curries are cooked mild and true to their own character. A vindaloo still tastes like a vindaloo at mild: the tang, the vinegar and the Goan spice are all still there, it just is not hot. When you order, you choose one of three spice levels to suit your heat tolerance. Heat is your choice, not a fixed property of the dish.
- Level 1: For anyone nervous about chilli heat or who wants to taste the curry without burning. Butter chicken, tikka masala, korma and mango coconut curry all work beautifully at this level.
- Level 2: For regular curry eaters. Still true to the dish but with proper chilli heat. Rogan josh, jalfrezi and madras sit well here.
- Level 3: For people who want proper heat. Vindaloo at level 3 is hot, tangy and rewarding. Order mint yoghurt chutney alongside it if you want help managing the burn.
Everything is available with your choice of protein: chicken, beef, lamb, shrimp or vegetarian. All our combos come with rice and garlic naan. We deliver across Malta via Wolt and Bolt Food, and we are open 11:00 to 23:00 every day.
Questions about curry heat
Is vindaloo the hottest curry?
No. Vindaloo is the hottest curry on most restaurant menus in Malta, but hotter ones exist: phaal, bhut jolokia, and various Scotch bonnet curries are all hotter. Vindaloo has just become the reference point for "very hot" because of its history and popularity.
Why does water make the burn worse?
Capsaicin is fat-soluble and alcohol-soluble but not water-soluble. Drinking water spreads the capsaicin around your mouth rather than dissolving it. Milk or yoghurt works because they contain fat, which capsaicin dissolves in. If you only have water, sipping slowly and swallowing quickly minimises the damage.
Does eating spicy food regularly make me less sensitive to heat?
Yes. Regular capsaicin exposure desensitises your pain receptors. Someone who eats vindaloo twice a week will feel less heat from it than someone eating it for the first time. This is why your tolerance seems to increase over time: you are actually becoming less sensitive to the burn signal.
Is there a difference between "warming spices" and "chilli heat"?
Yes, and this matters. Warming spices like cinnamon, clove and black pepper create a warm sensation in your throat and on the back of your tongue. Chilli heat is a burning sensation from capsaicin. A rogan josh has strong warming spices but mild chilli heat, so it feels hot but will not burn your mouth. A vindaloo has intense chilli heat plus less warming spice, so it feels hotter earlier and in a more direct way.