Inulin in ice cream: what it is, what it is used for, and how to use it.

Inulin is a soluble dietary fiber increasingly used in ice cream, pastry, and food products where it is desired to intervene on body, structure, fiber content, and solid management.

In ice cream making, it is particularly interesting because it allows for an increase in the dry matter of the mixture without behaving like a simple sugar.

However, this does not mean that inulin can be used indiscriminately or added without rebalancing the recipe.

As always, the result depends on the type of inulin, the dosage, and the overall composition of the mixture.

What is inulin?

Inulin is a carbohydrate belonging to the family of fructans.

It mainly consists of chains of fructose units, generally ending with a glucose molecule.

It is naturally present in numerous plants and is used in the food industry as a fiber-rich ingredient.

Among the most common sources used for food production is, for example, chicory.

From a nutritional standpoint, inulin is not digested in the same way as simple sugars in the small intestine and is classified as dietary fiber.

Why is inulin interesting in ice cream?

The formulation of ice cream requires a precise balance between:

• water;
• sugars;
• fats;
• proteins;
• total solids;
• stabilizers;
• serving temperature.

Inulin can become a useful tool especially when we want to increase the solids of the mixture without excessively increasing sweetness.

It can also contribute to the perception of body and the overall texture of the product.

Inulin and dry matter

One of the main reasons inulin is used in ice cream is its contribution to the total dry matter.

A mixture with too low a solid content may result in:

• poorly structured;
• watery;
• more prone to ice crystal formation;
• less pleasant to the palate.

Traditionally, a significant portion of solids is provided by sugars.

However, when we do not want to further increase sweetness, we can use ingredients that provide solids with different characteristics.

Inulin is indeed among these tools.

Is inulin sweet?

Inulin has a much lower sweetness compared to sucrose.

Perception may vary depending on the specific product and the average length of the fructose chains.

In general, however, it is not primarily used for sweetening.

This makes it interesting when you want to increase solids without achieving the same increase in sweetness that you would get using sucrose, dextrose, or other simple sugars.

Inulin and creaminess of ice cream

One of the most interesting characteristics of inulin is its ability to contribute to the perception of body and creaminess.

At certain concentrations, some types of inulin can interact with water and contribute to the formation of a structure that enhances the feeling of fullness in the mouth.

For this reason, it is also used in some low-fat formulations.

However, it is important not to interpret this concept as an automatic replacement for fat.

Fat plays indeed multiple functions in ice cream, including:

• contribution to structure;
• flavor delivery;
• mouthfeel;
• stability of incorporated air;
• interaction with proteins and emulsifiers.

Inulin can therefore help modulate the perception of structure, but the recipe must still be formulated as a whole.

Inulin and sugars in ice cream

Inulin should not be treated as if it were simply an alternative sugar.

Sucrose, dextrose, glucose, and fructose significantly contribute to:

• sweetness;
• PAC;
• freezing temperature;
• amount of frozen water at serving temperature.

Inulin, on the other hand, behaves differently.

It can increase the dry matter and body without exerting the same anti-freezing effect as simple sugars.

This means that if we significantly reduce the amount of sugars and replace them with inulin, we must necessarily recalculate the balance of the mixture.

Inulin in low-sugar ice creams

Inulin can be particularly useful in formulations where the goal is to reduce the amount of sugars compared to a conventional recipe.

Reducing sugars, in fact, means simultaneously reducing:

• sweetness;
• solids;
• PAC;
• structural contribution of sugars.

Inulin can help recover some of the solids and structure lost, but it cannot alone replace all the functions of sugars.

For this reason, low-sugar formulations often require a combination of:

• fibers;
• polyols or other sweeteners, when appropriate;
• selected sugars;
• stabilizers;
• proteins;
• other solids.

Inulin in ice creams with no added sugars

Inulin can also be used in some formulations of ice cream with no added sugars.

However, it is important to distinguish the technological concept from the regulatory one.

The term "no added sugars" is regulated and does not simply mean that sucrose is not used in the recipe.

To use this indication, it is necessary to verify that the formulation meets the requirements set by the applicable regulations.

The presence of ingredients that naturally contain sugars must also be communicated correctly when required.

Inulin and PAC

The PAC, or Anti Freezing Power, is one of the most used parameters in the professional balancing of ice cream.

Simple sugars, due to their relatively low molecular weight, significantly influence the freezing point of the mixture.

Inulin consists instead of chains of generally larger sizes and does not produce the same anti-freezing effect.

For this reason, it is not correct to replace a certain amount of sugar with the same amount of inulin expecting the same behavior at low temperatures.

A practical example

Imagine an ice cream that presents:

• a good creaminess;
• a slightly too high sweetness;
• a quantity of solids we want to maintain.

Simply reducing sugar could decrease sweetness, but it could also:

• reduce solids;
• lower the PAC;
• make the ice cream harder;
• modify the structure.

A portion of the solids can be recovered using inulin.

Subsequently, it will be necessary to correct the PAC through an appropriate combination of the other ingredients.

This is precisely the principle of professional balancing: each ingredient must be chosen based on the role it is to play.

Is inulin and maltodextrin the same thing?

No.

Although both can be used to increase dry matter without providing the same sweetness as sucrose, they are very different ingredients.

Short-chain and long-chain inulin

Not all inulins are identical.

One of the main differences concerns the degree of polymerization, that is, the average length of the chains that make up the ingredient.

Inulins with different characteristics may exhibit different behaviors in terms of:

• solubility;
• sweetness;
• structuring capacity;
• interaction with water;
• mouthfeel.

For professional applications, it is always useful to consult the technical data sheet of the product used.

How to incorporate inulin into ice cream?

Inulin is generally dispersed along with the other dry ingredients of the mixture.

A good practice is to pre-mix it with sugars or other powders before adding it to the liquid phase.

This helps achieve a more uniform dispersion and reduces the possibility of clumping.

The precise procedure must still be adapted to the type of inulin used and the formulation.

How much inulin to use in ice cream?

There is no universal dosage.

The amount must be chosen considering:

• type of inulin;
• technological objective;
• sugar content;
• fat content;
• total solids;
• proteins;
• stabilizers;
• serving temperature;
• desired consistency.

Excessive dosages can significantly alter the consistency and mouthfeel.

For this reason, it is always preferable to start from a balanced formulation and proceed through controlled trials.

SaporePuro Inulin

SaporePuro offers inulin for professional food applications, suitable for gelato, pastry, and other technical formulations.

It can be used when there is a desire to increase fiber content and influence the amount of solids and the structure of the preparation.

→ Discover SaporePuro Inulin

Frequently asked questions about inulin in gelato

Is inulin a sugar?

No. Inulin is a fructan classified as dietary fiber and behaves differently compared to simple sugars used in gelato.

Does inulin make gelato creamier?

It can contribute to the perception of body and creaminess, especially depending on the type of inulin used and the dosage.

Can inulin replace sugar?

Not directly. It can replace part of the solids provided by sugars, but it does not serve the same function in terms of sweetness and anti-freezing power.

Can inulin replace fat?

It can contribute to the perception of body in some low-fat formulations, but it does not automatically replace all the technological functions of fat.

Does inulin increase fiber content?

Yes. Inulin is used as a source of dietary fiber. Any nutritional declaration or claim on the label must comply with applicable regulatory requirements.

Are inulin and maltodextrin the same?

No. Inulin is a dietary fiber, while traditional maltodextrin is a digestible carbohydrate derived from starch hydrolysis.

Can I use inulin in sorbets?

Yes, it can also be used in sorbets to increase solids and contribute to structure, provided the recipe is properly rebalanced.

Do you want to improve the structure of your gelato?

Inulin, maltodextrin, dextrose, and stabilizers serve different functions within the mixture.

Understanding the role of each ingredient allows for the creation of more balanced gelatos, controlling sweetness, solids, creaminess, and structure.

→ Discover the professional ingredients for SaporePuro gelato