Drinking alcohol in Thailand, especially if you like Western tipples, is actually comparatively expensive - but still very affordable by Western standards.
Note that retail sales of alcohol in supermarkets, convenience stores etc are banned between midnight and 11 AM and, more bizarrely, 2-5 PM. Restaurants and bars are not affected, and smaller, non-chain stores are often willing to ignore the rules. However in certain circumstances these rules are relaxed for alcohol purchases above a particular quantity. For example if you purchase 5 liters of wine during the restricted period, then the purchase will not be allowed, however if you were to purchase say 10 liters of wine in the same period then this would be permitted.
There are also occasional days throughout the year when alcohol can't be sold anywhere - even the smaller mom & pop shops normally adhere to the rules on these days, and most bars and pubs do too although you can probably find a beer somewhere if you're desperate enough. Up-market hotel bars and restaurants are probably the only places that are realistically likely to be exempt. Religious holidays and elections are normally the reason for these restrictions.
The misnamed Thai whisky lao refers to a number of liquors. The best known are the infamous Mae Khong à¹à¸¡à¹à¹à¸à¸ "Mekong" brand and its competitor, the sweeter Saeng Som "Sangsom", which are both brewed primarily from sugarcane and thus technically rum. Indeed, the only resemblances to whisky are the brown color and high alcohol content, and indeed many people liken the smell to nail polish remover, but the taste is not quite as bad, especially when diluted with cola or tonic water. This is also by far the cheapest way to get blotto, as a pocket flask of the stuff available in any convenience store or supermarket costs only around 50 baht.
The "real" Thai whisky is lao khao à¹à¸«à¸¥à¹à¸²à¸à¸²à¸§ "white liquor", which is distilled from rice. While commercial versions are available, it's mostly distilled at home as moonshine, in which case it also goes by the name lao theuan "jungle liquor". White liquor with herbs added for flavor and medical effect is called ya dong à¸¢à¸²à¸à¸à¸. Strictly speaking, both are is illegal, but nobody seems to mind very much — especially when hilltribe trekking in the North you're likely to be invited to sample some, and it's polite to at least take a sip.
Thai rice wine à¸ªà¸²à¹à¸ sato is actually a beer brewed from glutinous rice, and thus a spiritual cousin of Japanese sake. While traditionally associated with Isaan, it's now sold nationwide under the brand Siam Sato, available in any 7-11 at 25 baht for a 0.65L bottle. At 8% alcohol, it's cheap and potent, but you may regret it the next morning! The original style of brewing and serving sato is in earthenware jars called hai, hence the drink's other name lao hai à¹à¸«à¸¥à¹à¸²à¹à¸«. These are served by breaking the seal on the jar, adding water, and drinking immediately with either glasses or, traditionally, with a straw directly from the pot.
Western-style beer à¹à¸à¸µà¸¢à¸£à¹ bia is a bit of an upmarket drink in Thailand, with the price of a small bottle hovering between 50 and 100 baht in most pubs, bars and restaurants. Thais like their lagers with relatively high alcohol content around 6%, as it is designed to be drunk with ice, so the beer in Thailand may pack more of a punch than you are used to. However, if you are an experience drinkers for Western Europe, namely Belgium or part of Germany, you will find it similar to your local tastes.
For many years the only locally brewed beer was singha pronounced just sing but it has lost market to cheaper and stronger chang. both are pretty strong chang especially, being 6%, and singha 5%, but for those who prefer something a bit lighter, both local brands have introduced low-alcohol versions of their beers. singha light comes in at 3.5%, chang draught is 5% and chang light is 4.2%. both are strong in alcohol percentage, gives a little spicy taste for europeans, you can refer them to leffe or duvel rather than blended smoothness of german beers erdinger or paulaner. there are also some cheaper local beers - leo very popular among locals and expats, with price 10-20% cheaper than singha and archa cheapest, but the taste is not as nice, it's not sold in the bars often, but is available in almost any 7-eleven being among the most popular.
The two most popular premium brands are heineken and tiger, but san miguel, federbrau and other asian beers such as the japanese asahi are also fairly commonplace. the premium beers tend to be a bit weaker than the full-strength local beers, and are about 10-20% more expensive.
Most upmarket pubs in touristy areas will have at least a couple of imported beers available along with the usual local brands, either on draught, in bottles or both. belgian and german beers can often be found, as well as irish stouts and ales such as guinness, british bitters such as john smiths and the light mexican beer corona is gaining in popularity. regional favourite beerlao has also started to make an appearance in bars and pubs around the country. all imported beers with the exception of beerlao are very expensive though, being about twice the price of locally sourced beers.
Imported liquors, wines and beers are widely available but prohibitively priced for the average Thai. A shot of any brand-name liquor is at least 100 baht, a pint of Guinness will set you back at least 200 baht and, thanks to an inexplicable 340% tax, even the cheapest bottle of wine will set you back over 500 baht. Note that, in cheaper bars especially the go-go kind, the content of that familiar bottle of Jack Daniels may be something entirely different.
Tea and coffee
Black Canyon Coffee
(http://blackcanyoncoffee.com) is thailand's home-brewed starbucks, but while coffee is their mainstay they also offer a limited meal menu. try the chaa yen lurid orange thai iced tea with milk.
One of Thailand's most characteristic drinks is Thai iced tea à¸à¸²à¹à¸¢à¹à¸ chaa yen, lit. "cold tea". Instantly identifiable thanks to its lurid orange color, this is the side effect of adding ground tamarind seed or, these days, artificial color during the curing process. The iced tea is always very strong and very sweet, and usually served with a dash of condensed milk; ask for chaa dam yen to skip the milk.
Naam chaa and chaa jiin are weak and full-strength Chinese tea, often served in restaurants for free. Western-style black tea is chaa ron à¸à¸²à¸£à¹à¸à¸. Coffee à¸à¸²à¹à¸ kaafae is also widely available, and is usually served with condensed milk and lots of sugar. Ask for kaafae thung to get traditional filtered "bag" coffee instead of instant.
The Starbucks phenomenon has also arrived in Thailand, but for the moment local competitors Black Canyon Coffee and S&P still have the edge in marketshare. These are the places to look for if you want that triple-moccha latte with hazelnut swirl and are willing to pay 75 baht for the privilege.
Tap water is usually not drinkable in Thailand outside of Bangkok. In many places in Bangkok however, particularly in new buildings, drinking tap water is perfectly safe. However, if you don't want to chance it, buying a bottle of water is the obvious solution. Bottled water à¸à¹à¸³à¹à¸à¸¥à¹à¸² naam plao is cheap and ubiquitous at 5-20 baht a bottle depending on its size and brand, and drinking water served in restaurants is always at least boiled à¸à¹à¸³à¸à¹à¸¡ naam tom. Ice à¸à¹à¸³à¹à¸à¹à¸ naam khaeng in Thailand usually comes packaged straight from the factory and is safe; there is only reason to worry if you are served hand-cut ice. You can buy a large package of ice in most 7-elevens for 7 baht, too.
Mainly in residential areas, machines selling water into your own bottle 1 baht/liter, or 50 satang (0,5 baht/liter if paid more than 5 baht) are often available, located in some Thai mostly hotels, local shops, or just on the street near one. This is a clean the water is cleaned and UV-treated on the spot and extremely cheap option, also, this way you'll avoid making unnecessary plastic waste from empty bottles.
Thailand is the original home of the Red Bull brand energy drink - a licensed and re-branded version of Thailand's original Krathing Daeng à¸à¸£à¸°à¸à¸´à¸à¹à¸à¸, "Red Bull", complete with the familiar logo of two bulls charging at each other.
The Thai version, however, is syrupy sweet, uncarbonated and comes packaged in medicinal-looking brown glass bottles, as the target customers are not trendy clubbers, but Thailand's working class of construction workers and bus drivers in need of a pick-me-up. And a pick-me-up it most certainly is; the caffeine content is higher even than Western-style Red Bull, and packs a punch equivalent to two or three shots of espresso coffee. Krathing Daeng and its many competitors including M150, Shark, .357 and the inevitable Karabao Daeng, "Red Buffalo" are available in any convenience store for 10 baht a pop, although in some places you can now buy imported European Red Bull for five times the price.
Coconut water à¸à¹à¸³à¸¡à¸°à¸à¸£à¹à¸²à¸§ naam ma-phrao, iced and drunk directly from a fresh coconut is a cheap and healthy way to cool the body - available at restaurants and also from vendors that specialize in fruit juice.
Fruit juices, freezes and milkshakes of all kinds are very popular with Thais and visitors alike. Most cafÃ©s and restaurants charge 20-40 baht, but a bottle of freshly squeezed Thai sweet orange juice à¸à¹à¸³à¸ªà¹à¸¡ naam som - which really is orange in color! - can be sold on the street for 15-30 bath. Thais often add salt to their fruit juices-- an acquired taste that you might just learn to like. Thais also like to have basil seeds in their iced fruit juice sold on the road - which looks like small jelly balls down of the bottle.