I've been looking for some good hot sauce in Bangkok, but all I've been able to find so far is habanero tabasco sauce. I want something hotter than this, ideally I want to find bhut jolokia hot sauce, but anything hotter than habanero peppers would be great. Does anyone know where I can buy this in Bangkok?

The common Thai chile is much hotter than the habanero. Enough of these will send you to the moon and back. I have grown them all.

It's actually insanely easy to make your own hot sauces... just smash up some of those thai birds eye chilies, throw in some vinegar, salt, sugar, just keep on tasting along the way. Add some fruit juices if you like that tropical taste that Tabasco's Habanero has, or (my secret, red bell pepper juice) just some water to make the consistency right.

Want it thicker? add more solids. More watery? add more liquids.

Experiment cooking the chilis, adding garlic, using dried chilis, chili flakes, szechuan peppercorns (adds an almost drug-like numbing sensation!) etc.

Srsly. Put aside a couple hours on a Sunday and you'll have so much fun.

Monday morning's bathroom break, however, will not be.

The habanero's Scoville rating is 200,000+, Thai chilies are around 15-30,000. That being said I've had dishes in Thailand a few times that were too hot for me to eat, so I do think some of the chilies here are hotter than the Scoville rating would suggest. Unless consumed raw I don't find them hot enough though, even most habanero sauces are not hot enough. I really want to find bhut jolokias for that reason but it's surprisingly difficult to find in the country it originated from.

I've made my own hot sauce before, it is pretty easy to do and the results have been pretty good. I've done it with both habaneros and thai chilies but again it was not as hot as I would like, which is why I'm trying to find a hot sauce using something a little more potent. In my experience cooking them to make sauce really reduces the heat. If I could find a strong enough raw chili I would give that at a shot making my own, but I would prefer just to buy something premade if possible.