Good mixology isn't about a long list of exotic techniques, it's knowing which of a handful of core methods actually fits the drink in front of you. Practice these on classics like the Mojito or a stirred Old Fashioned and you'll cover most of what you need.
Shaking
Shaking chills, dilutes, and, critically, emulsifies ingredients that don't mix on their own, like juice, cream, or egg white. Fill the shaker two-thirds with ice, add the ingredients, seal it tightly, and shake vigorously for 10-15 seconds before straining. This is the right call for Margaritas, Daiquiris, Whiskey Sours, and Cosmopolitans, anything with citrus or dairy needs the vigorous agitation shaking provides. For egg-white cocktails like a Ramos Gin Fizz or a Whiskey Sour made "sour style," use a dry shake first: shake all the ingredients without ice for 15-20 seconds to whip the egg white into foam, then add ice and shake again briefly before double-straining. Skipping the dry shake is the reason most home versions of these drinks come out thin instead of properly foamy.
Know the techniques but not which drink needs which one?
Pocket Bartender pairs your ingredients with recipes that specify shake, stir, or muddle.
Stirring
Stirring is the right call for spirit-forward drinks with no juice or dairy to emulsify: Martinis, Manhattans, Old Fashioneds, Negronis. Fill a mixing glass with ice, add the ingredients, and stir with a bar spoon for 20-30 seconds before straining into a chilled glass. The goal is a clear, silky drink with just enough dilution to soften the alcohol without watering it down; shaking these instead introduces air bubbles and unwanted cloudiness that a stirred drink shouldn't have.
Muddling and Building
Muddling releases essential oils and flavor from herbs, citrus, or fruit by pressing, not crushing, them in the bottom of the glass. It's the technique that makes a Mojito, Old Fashioned, or Caipirinha work: press gently until you can smell the ingredient, then stop, since over-muddling releases bitter compounds and turns the drink grassy or harsh. Building means assembling a drink directly in its serving glass rather than in a shaker or mixing glass: pour heavier ingredients first, add ice, then top with lighter mixers like soda, stirring gently at the end just enough to combine everything without killing the carbonation.
Straining
A single strain through a Hawthorne strainer is enough for most shaken cocktails, catching the ice while letting the drink through clean. A double strain, adding a fine mesh strainer on top of the Hawthorne, is worth the extra step for anything with muddled fruit, herbs, or egg white, since it catches small pulp and foam particles a single strainer misses, giving a genuinely silky final texture. For a Mint Julep, use a julep strainer (or a slotted spoon) to hold the mint against the glass while you pour, keeping the aroma without a mouthful of leaves.
Ice Makes a Bigger Difference Than You'd Think
The size and type of ice you use changes the outcome as much as the technique itself. Large cubes melt slowly and are the right choice for stirred, spirit-forward drinks that need to stay cold without diluting too fast. Standard or crushed ice melts and chills faster, which is exactly what a shaken cocktail needs in its short 10-15 seconds of contact time. Pebble or crushed ice is also traditional for tiki drinks and Mint Juleps, where quick, heavy dilution is actually part of the drink's intended character, not a flaw to avoid.
Common Mistakes
Using the wrong technique for the drink is the single biggest one: shaking a Martini or stirring a Margarita both produce a noticeably worse result than the correct method would. Over-shaking or over-stirring both over-dilute a drink, while under-doing either leaves it too strong and improperly chilled; 10-15 seconds for shaking and 20-30 for stirring is right for almost everything. Small, quickly-melting ice is a quieter problem: it waters down a drink before you've finished it, in both shaken and stirred cocktails alike.
Master these four techniques, shake, stir, muddle, strain, and you can competently make the overwhelming majority of the cocktail world's classic recipes.