How much juice is in a lime?

The honest answer to how much juice is in a lime is a range with a reliable centre, and the centre is about one fluid ounce. Two published USDA figures get you there. USDA's reference data puts a raw lime of roughly 1.75 to 2 inches in diameter at about 58 to 76 grams, with 67 grams as the common reference weight. USDA's Agriculture Handbook No. 102 on food yields puts limes, juiced and strained, at an average yield of about 47% of the whole fruit by weight.

Multiply those and a 67 gram lime gives about 31 grams of strained juice. Lime juice is close enough to water in density that 31 grams is about 31 ml, which is a touch over one US fluid ounce - and in kitchen terms, 2 tablespoons.

That bottom row is the one that catches people out. Key limes are a genuinely different and much smaller fruit, and a recipe written for Persian limes will need three or four key limes to hit the same ounce. They also taste different - more floral, more bitter - so swapping them in changes the drink as well as the arithmetic.

Most lime-forward cocktails use 0.75 to 1 oz of juice. A daiquiri, a gimlet and a margarita all sit in that band, which makes the planning rule unusually clean: one lime per drink, plus one spare for the round. Buy to that and you will not be standing at the counter mid-service with half a drink and no fruit.

The spare is not padding. It is there because the yield range is real: one hard pale lime in a bag of six can give you half what the others do, and you only find out at the squeezer. Over-buying by one lime per round costs very little, and a wedge or a twist always finds a use.

Above about 8 oz of juice the tool changes the answer more than the fruit count does. A handheld squeezer is faster than a lever press for a handful of fruit and slower for a dozen, because the lever press empties a half in one stroke while your hand does not. Best citrus juicers for cocktails covers where that crossover falls.

Temperature first, because it is the easiest win and the one nobody does. A lime straight from the fridge is firmer and its membranes are less willing to release juice than the same lime at room temperature. Take the limes out twenty minutes before you need them, or hold them under warm water for a minute. A few seconds in a microwave does the same job faster, at the cost of slightly cooked aromatics.

Second, roll it. Pressing a lime firmly against the counter under your palm before you cut it ruptures the internal membranes, which means more of the juice is already free when the squeezer closes. It takes five seconds per fruit and it is visible in the glass.

Third, ripeness. A lime with a little give, a thin skin and a yellowish cast at the blossom end is further along than a rock-hard dark green one, and it holds noticeably more juice. The deep-green unblemished limes that look best in the bowl are frequently the least generous.

Fourth, the tool, and this is where the gap is biggest. Squeezing by hand into a shaker leaves a lot behind and puts seeds and pith into the drink. A plain squeezer inverts the half and gets most of it. A geared press multiplies your grip - the Chef'n FreshForce claims up to 20% more juice than a standard handheld - and a lever press with up to 2,000 lb of force leaves a visibly drier husk. On ten limes that difference is an extra drink or two.

Juice it last, not first. Fresh lime juice is at its best within a couple of hours and falls off noticeably over a day - the bright top note goes first and a dull, slightly bitter edge arrives. Squeeze into the shaker as you build the drink rather than prepping a jug in the morning.

Knowing that one lime is about an ounce is a shopping tool, not a measuring tool. A sour is a balance between spirit, citrus and sugar, and a quarter-ounce swing in the citrus is the difference between a daiquiri that sings and one that puckers. Squeezing a lime straight into the tin and calling it an ounce is how a drink you made perfectly on Friday tastes wrong on Saturday.

So squeeze into a jigger, not into the shaker. It costs nothing in time, it tells you immediately whether that particular lime gave you 0.6 oz or 1.2 oz, and it lets you top up from the next fruit rather than discovering the imbalance after the shake. How to use a jigger covers the technique, and jigger sizes explained covers which markings you actually need.

The last step is straining. Even a squeezer with a perforated base lets some pulp through, and pulp in a shaken drink reads as texture rather than as flavour. A fine mesh strainer on the pour catches it. When to double strain a cocktail covers when that is worth doing and when it is fussiness, and best cocktail shakers for margaritas is the tin side of a lime-heavy bar.