How to Scale a Recipe to Adjust for Different Portions (2024)

If you have more or fewer people to feed than a recipe serves these tips will show you how to scale a recipe to the serving amounts you need.

You’ve got family coming over and your favorite beef stew recipe serves 4, but you’ve got 7 people coming. Or maybe it’s the opposite for you, you used to make recipes for 4 but now there is only two or one of you to feed.

What are you going to do?

How to Scale a Recipe to Adjust for Different Portions (1)

One solution is to scale the recipe.

So you can serve more people or less, but it’s not always as straightforward as it seems. Here are some tips to make your recipe scaling a success.

How to Scale a Recipe, Find You Recipe Conversion Factor

The easiest approach to scaling a recipe is to multiply or divide the ingredients to the portion size you need and to do that, you need to calculate your recipe conversion factor.

For example, if you are going to make a pasta sauce that served 6, but you need it for 12, you can multiply all the ingredients by 2 and 2 is your conversion factor. Or if your recipe is for 4 and you only want two serving, you’d divide by 2.

The precise formula is:

number of servings you want ÷ number of servings in recipe = your magic number

Use your magic number and multiply to increase a recipe or use your magic number and divide to make a smaller amount.

Of course, you can run into problems with this if you need 1 3/8 tsp of basil and you don’t have a 3/8 measure.

In this case, use your judgment and simply round off the number to 1 ¼ teaspoons. It’s not likely to make a crucial difference.

Still, there are more problematic ingredients. What if you end up needing 3 ½ eggs?

That gets a little trickier. I usually opt for the smaller amount of 3 eggs and add a little more liquid if needed. In most recipes, this works out well.

Also keep in mind that some recipes don’t scale well, including baked goods. If you decide scaling is not a good idea, we’ve got some tips for you at the end of this article.

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Things to Consider When Scaling a Recipe

There are a couple of things to consider including cooking time and your cooking dishes.

Cooking Time: If you’re preparing larger or smaller portions, it may alter your cooking time. Allow for more time if making a larger portion.

For smaller portion check the dish at least 10 minutes early to see if it’s done. You don’t want to overcook the dish.

If you’re cooking meat; make sure to use a meat thermometer to ensure the appropriate internal temperature is reached.

Cooking Dishes: If you’re making baked macaroni and you halve the recipe, try to find a dish that will keep the macaroni at the same depth as the original recipe.

For example, if the recipe called for a 13 x 9-inch pan, find a rectangular or square pan about half the size. Like an 8-inch square pan.

That will help ensure your cooking time will be roughly the same.

What to Do if the Recipe Doesn’t Scale Well

If you discover your recipe won’t do well with scaling, and the recipe is too large, go ahead and make the full recipe. You can portion and freeze any unused amounts.

Allow the food to cool completely before freezing. Also, remove any air from freezer bags and make sure that your freezer-safe containers are nearly full, so there isn’t any extra air.

And finally, don’t forget to date and label what you’ve got, so you can come back to it later. I also like to add it to my freezer inventory sheet.

If the recipe is too small, but won’t scale well, cook it in batches. That way, you can ensure you’ve made the recipe according to the specifications, but still get the portion you need.

How to Scale a Recipe to Adjust for Different Portions (3)

Those are my tips for how to scale a recipe. Start with your conversion number then adjust for cooking time and the cooking dish. With those three things, you should be able to scale most recipes up or down successfully.

Do you have any extra tips to add to how to scale a recipe? I would love to have you share them in the comments below.

More Cooking Tips

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How to Scale a Recipe to Adjust for Different Portions (2024)

FAQs

What are the steps for scaling a recipe when the portion size is changed? ›

Determine the required yield of the recipe by multiplying the new number of portions and the new size of each portion. Find the conversion factor by dividing the required yield (Step 2) by the recipe yield (Step 1). That is, conversion factor = (required yield)/(recipe yield).

What is the formula for scaling down a recipe? ›

Example. Scaling a 10-portion recipe down to six portions involves two steps: Divide 6 by 10, which gives you a conversion factor of 0.6. Multiply each ingredient amount by 0.6.

How do you resize a recipe? ›

The way to scale a recipe by number of servings is to multiply the original amount by the desired serving size and then divide by the original serving size. We are essentially doing the same thing as scaling a recipe by a multiplier.

How do you change the number of servings in a recipe? ›

Can you just double a recipe? To double a recipe, simply double the amount of servings by multiplying the serving size by 2. For instance, if your recipe serves 4, multiply that number by 2 to get 8.

How do you adjust the cooking time for smaller portions? ›

If you're sautéing or searing a halved recipe, keep the heat and cook time the same but size down your pan. If you're cooking a halved recipe in the oven, keep the oven temperature the same but size down your cooking vessel and reduce the cook time by 1/3 — but check on it as you go.

What is the simple scaling formula? ›

The basic formula that is used for calculating the scale factor is, Scale factor = Dimension of the new shape ÷ Dimension of the original shape. In case, if the original figure is scaled up, the formula is written as, Scale factor = Larger figure dimensions ÷ Smaller figure dimensions.

What is the method of scaling? ›

Scaling methods are divided into two main categories, open questions and closed question. Scaling is the process of generating the continuum, a continuous sequence of values, upon which the measured objects are placed. An open question is one in which the respondent does not have to indicate a specific response.

What are the four methods of scaling *? ›

Statisticians often refer to the "levels of measurement" of a variable, a measure, or a scale to distinguish between measured variables that have different properties. There are four basic levels: nominal, ordinal, interval, and ratio.

What is the formula for portion size? ›

How do I calculate serving size? To determine serving size, you can weigh the food and divide it by the number of servings. Many recipes also provide the recommended serving size.

When converting a recipe to yield a different number of servings How is the conversion multiplier determined? ›

Divide the desired yield by the recipe's original yield. The result is called the conversion factor. 2. Multiply all recipe ingredients by the conversion factor.

How do you calculate portion size? ›

Use these guidelines when trying to estimate a portion size:
  1. 2 cups will fit into your hands if they were cupped together. ...
  2. 1 cup or 8 oz is equivalent to your fist. ...
  3. 1/2 cup or about 4 oz is the size of one cupped palm.
  4. 3 oz is about the size of your palm.
  5. 1 tablespoon is the size of the tip of your thumb.

How are most recipes scaled measured? ›

Using a formula percent to scale recipes is similar to the basic method. The scale factor is multiplied times the original batch size to determine the new batch size. The new amount of an ingredient is determined by multiplying the ingredient's formula percent times the new batch size. Masa 66.2% 66.2%* 290 = 192 tsp.

What is the two fold process for scaling a recipe for non multiple servings? ›

Explain the two-fold process for scaling a recipe for non-multiple servings. Divide each ingredient amount by the number of people the original standardised recipe serves and write down what the 'per person' measure is • Multiply the 'per person' measure for each ingredient by the number of people you need to serve.

How do you calculate servings in a recipe? ›

Once you know how much the entire finished dish weighs, divide the weight by the number of servings, which is usually listed in the recipe ("serves six," or "serves eight," for example). Round the result to an easy-to-remember number to find the average serving size.

What is the second step to manually converting a recipe to a specific number of portions? ›

What is the second step to manually converting a recipe to a specific number of portions? Break down the ingredients into weights and measures. What is a liquid ingredient that you can measure with a cup or spoon known as? Multiply the working factor by the weight of each ingredient.

What is the scaling method of baking? ›

Scaling means to measure out the ingredients of a recipe for the quantity you need. You can scale a recipe by doubling or halving the ingredients to adjust for the number of servings you will need.

How has portion size changed over time? ›

(NU) - Food portions in America's restaurants have doubled or tripled over the last 20 years, a key factor that is contributing to a potentially devastating increase in obesity among children and adults.

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