To adjust recipe servings, calculate a scale factor from the desired and original yields, multiply the scalable ingredient quantities, and then review everything that does not scale automatically: pan geometry, batch count, cooking time, seasoning, and safety-critical technique. Start with this formula:

desired servings ÷ original servings = scale factor

Multiply ingredient quantities by that factor, then make separate decisions about pan size, batch count, cooking time, heat, seasoning, and doneness. Those do not automatically scale with the ingredient list.

Example: four servings to six

The scale factor is 6 ÷ 4 = 1.5.

  • 400 g tomatoes → 600 g
  • 2 tablespoons oil → 3 tablespoons
  • 1 onion → 1½ onions, or a practical measured weight

Keep the original yield visible until you finish checking the conversion.

Convert awkward quantities intentionally

For cooking, a practical rounded measure may be fine. For baking, curing, preserving, and other ratio-sensitive work, weight and a tested source are safer than casual rounding.

Write the real decision: “use 75 g beaten egg,” not “1.5 eggs” if the fraction affects the formula. For a garnish, “about 1½ handfuls” may be false precision; scale by judgment.

Ingredients that need judgment

Taste salt, strong spices, chilies, thickeners, leaveners, and extracts rather than assuming perfect linear behavior. A larger batch can change evaporation and flavor concentration.

Do not scale a safety-critical preserving or canning ratio outside a tested recipe. A general recipe app is not a process authority.

Reconsider geometry and time

Doubling batter in the same pan makes it deeper; doubling a roast may crowd the tray; halving a stew may evaporate faster. Decide whether to:

  • use a proportionally sized vessel;
  • split into two batches;
  • keep depth constant;
  • extend or reduce time based on tested doneness cues.

Tastemade’s serving help explicitly notes that changing servings adjusts ingredients but not time, temperature, or equipment. Treat this as the normal limitation of automatic scaling.

Use Mise’s serving adjustment as a calculator, not an authority

Mise can adjust displayed ingredient quantities for a selected serving count in Cook Mode. It cannot know whether your baking tin, burner, seasoning preference, or food-safety process should change. Review the new quantities and keep the source’s original yield available. If divided ingredients become hard to follow after scaling, use the ingredient-to-step cross-check.

Final scaling check

Before cooking, verify:

  • every quantity used the same base yield;
  • unit conversions did not change magnitude;
  • pan capacity and batch depth still make sense;
  • timers are prompts, not scaled guarantees;
  • doneness or safe-temperature cues remain authoritative;
  • your rounded quantities are recorded for next time.

Try the workflow

Keep the source. Review the recipe. Cook from your version.

Download Mise on the App Store

Sources and further reading

  1. Tastemade Help — changing a recipe’s servings
  2. King Arthur Baking — how to scale a recipe
  3. FDA — safe food handling

Read how we research, draft, review, and correct guides in our editorial policy.