Alcohol

Alcohol results from the action of yeast on sugar. The yeast convert sugar into ethanol; which, as it is inhospitable to bacteria, will retard spoilage. It has been drunk, used, seen, and even occasionally manufactured by the Doctor, companions, and others.

Adventurer archaeologist and Seventh Doctor companion Bernice Summerfield greatly appreciated alcoholic beverages.

Wine
Wine was a drink made from pressed fruit, usually some form of grape. It was commonly found on Earth.

The Doctor

 * The Doctor in particular enjoyed a glass or two of wine whilst guarding Auderly House: "That's a most good-humoured wine. A touch sardonic, perhaps, but not cynical. A most civilised wine, one after my own heart." (DW: Day of the Daleks)
 * The Third Doctor was also offered wine whilst at the Wholeweal community. (DW: The Green Death)
 * Sour wine was on offer in Irongron's castle. (DW: The Time Warrior)
 * Mehendri Solon gave the Doctor and Sarah Jane Smith some red wine when they were in his house on Karn. (DW: The Brain of Morbius)
 * Whilst in the past of The Gateway, The Doctor ate and drank wine with Biroc and other Tharils. He also used the idea of overfilling one of the Tharils' goblets with wine to illustrate a point. (DW: Warriors' Gate)
 * The Doctor could identify the year and place of origin of wine by its taste. (NDA: The Clockwise Man)

Bernice Summerfield

 * Whilst at the Braxiatel Collection, Bernice Summerfield drinks Craxiatanian Chardonay. (NA: Theatre of War)
 * Bernice enjoyed a good German wine on a hot summer's day. (NA: Strange England)
 * Bernice and Irving Braxiatel share enjoy some glasses of fine champagne following the Gamaliel situation. (BNA: Dragons' Wrath)

Other companions

 * Barbara Wright and Ian Chesterton drank some whilst in a Roman villa. Vicki and her poisoner friend attempted to kill Nero by putting poison in his wine goblet. (DW: The Romans)
 * Duggan and Romana drunk wine following their failed attempt at stopping the theft of the Mona Lisa whilst in Paris. (DW: City of Death)
 * Chris got drunk on Melon Wine and had his right ear pierced prior to their arrival in the 1980s. (NA: Damaged Goods)
 * Evelyn Smythe drinks red wine during a meal with Charles Darwin in an attempt to avoid the various turtle-based dishes. (BFA: Bloodtide)

Torchwood

 * Champagne taken with level 6 retcon led everyone at Gwen and Rhys Williams' wedding to fall asleep and forget the day's strange events. (TW: Something Borrowed)

Beer
Beer is created by the fermentation of hops in water. The farming of hops for this purpose may have been have been what caused humanity to first switch from a hunter-gatherer society to an agricultural one. (BNA: Walking to Babylon)

The Doctor

 * The First Doctor was offered some alcohol by a dentist in The Gunfighters to help him ease his tension, there he announced that he never touched the stuff.
 * The Doctor and Dr. John Watson drink beer in London where it is laced with strychnine to give it body. (NA: All-Consuming Fire)

Bernice Summerfield

 * Bernice Summerfield drinks real ale in Oxford, 1993. (NA: The Dimension Riders)
 * Bernice Summerfield drinks six pints at a beer tent on the planet Crex. (NA:  Human Nature)
 * Much beer is consumed at the Cheldon Bonniface pub leading up to Bernice Summerfield and Jason Kane's wedding. (NA: Happy Endings)
 * St. Oscar's University holds at the end of each term the 'Kinky Gerlinky Memorial Staturluna, Beer Race and Pyjama Jump'. (BNA: Ghost Devices)
 * The Witch and Whirlwind bar on Dellah sells Admiral's Old Antisocial beer, which Benny loves. (BNA: Dry Pilgrimage)

Other companions

 * The Brigadier states "I'd rather have a pint" at the end of events in Devil's End. (DW: The Dæmons)
 * Ace drank beer in bowl in Mesopotamia, 2700 BC. She thought it tasted not unlike pig vomit. (NA: Timewyrm: Genesys)
 * Martian Ale is mentioned by Roz in relation to sex. (NA: The Also People)
 * At the conclusion of events Fitz Kriener drinks beer and eats crisps on Vega Station. (EDA: Demontage)
 * Evelyn Smythe used to compete in the Yard of Ale race against the students at the History Social. (BFA: The Marian Conspiracy)

Torchwood

 * Gwen Cooper downs a large beer as Jack explains some details of Torchwood. (TW: Everything Changes)

Other

 * A bar on Blinni-Gar serves Ogron ale. (PDA: Prime Time)

Spirits
Spirits are made by distillation, and are usually quite potent.

The Doctor

 * The Doctor drinks what appears to be a whiskey and soda in Hart's office. (DW: The Sea Devils)
 * The Doctor toasts Captain Dent's health with an unknown spirit after a civilized, but confrontational, introduction. (DW: Colony in Space)
 * The Doctor and Iris Wildthyme drink Bombay Sapphire Gin, in which the Doctor prefers lime to lemon. (PDA: Verdigris)
 * The Doctor brews whiskey in the TARDIS bathtub whilst in Chicago in 1929. (NA: Blood Harvest)
 * The Doctor threatens to triplicate the flammability of some brandy, however the Slitheen declare that he is "making that up". Harriet Jones also informs him that one passes to ones left. Later, he, Harriet and Rose imbibe a measure of that brandy after successfully rescuing Mickey and Jackie by phone. The Doctor, however, appears to have an adverse reaction to the drink.  (DW: World War Three)
 * The Third Doctor, The Brigadier and Claire Aldwych drink (gulp mainly) a lot of brandy while discussing the deaths of Hitler and Eva Braun. (PDA: The Shadow in the Glass)

Bernice Summerfield

 * Bernice Summerfield drinks cheap watered down vodka in a dirty London bar in 1908. (NA: Birthright)
 * Bernice Summerfield gets drunk on rekkar. (NA: Shakedown)
 * Bernice Summerfield brews vodka to clean wounds (and to drink) she also finds a flask of the Doctor's: Napoleon's Brandy. According to the Doctor, it was really Napoleon's brandy. (NA: Sanctuary)
 * Roz and Bernice drink homemade hooch. (NA: Sleepy)
 * Bernice fights a Martian with a bottle of vodka and a lighter. (NA: The Dying Days)
 * Bernice spends time in the Witch and Whirlwind bar while Jason and Emile are off having adventures (on what isn't Ardethe) drinking both Jack Daniels and scotch. (BNA: Deadfall)
 * On what was supposed to be an alcohol free cruise Bernice Summerfield drinks some (particularly lethal) Brettellian Potato spirit, so strong it makes her eyes water. (BNA: Dry Pilgrimage)
 * RedStar is a brand of Martian vodka, it is also used in several cocktails such as 'A Red Under The Bed', Bernice Summerfield drank much of RedStar whilst on Mars. (BNA: Beige Planet Mars)
 * Benny drinks drugged brandy. (BFBS: The Squire's Crystal)

Other companions

 * The Countess drinks something green when she speaks to the Doctor, Romana and Duggan. (DW: City of Death)
 * Chris' father at the end of the adventure opens a bottle of Gallavax Prime fermented drink brewed by mutant space bees which tastes vaguely of honey. (NA: Original Sin)
 * On one occasion Jack Harkness when sentenced to death ordered three hypervodkas as a last meal. (DW: The Doctor Dances)
 * A bar on Blinni-Gar serves; Draconian sake and Foamasi brandy. (PDA: Prime Time)

The Doctor

 * The Doctor claimed (while attempting to distract the clockwork androids) that he accidently created the banana dacquiri. (DW: The Girl in the Fireplace)

Bernice Summerfield

 * Bernice Summerfield drinks 3 glasses of Kronka: a cocktail of cherry brandy, creme de bananas and pure M3 variant at a space port. (NA: The Highest Science)

Other companions

 * Tegan drinks a screwdriver (orange juice and vodka) whilst at Lord Cranleigh's garden party in 1925. (DW:  Black Orchid)
 * Ace drinks a gin and tonic (among other things) and goes drinking with Vincent. (NA:  Warlock)
 * Fitz Kriener (pretending to be James Bond) drinks martinis "shaken not stirred" on Vega Station. (EDA: Demontage)
 * Polly drinks several cocktails including a Flaming Her, before switching to rum and coke while at the Regent Hotel bar. (PDA: Dying in the Sun)
 * Barbara Wright was introduced to gin and tonics in her as a student by Herbert Effemy. (PDA: Byzantium!)

Others

 * There are many sundowners consumed by the people within the Miniscope on the S.S. Bernice. (DW: Carnival of Monsters)
 * Shou Yuing has a vodka and coke while she talks to Ace. (DW: Battlefield)
 * Vragg was a Sontaran beverage. (NA: Shakedown)
 * Irving Braxiatel offers martinis all round in his office in the Proximia Chain (BNA: Return to the Fractured Planet)
 * Bev Tarrant drinks a dry vodka martini whilst on Duchamp 331. (BFA: Dust Breeding)