Developing high-fibre baked snacks without losing the crunch

Developing a high-fibre baked snack requires adjusting the recipe and how to dry it. In crackers and breadsticks, the result also depends on thickness, cooling and packaging: a crunch piece outside the oven may lose that texture during preservation. This guide proposes how to organize tests for manufacturers, bakeries and brands of savoury snacks.

Define the snack and fibre target

Before choosing the ingredient, fix format, weight, thickness, taste, presence of seeds and type of bite. It uses a reference product that the customer can test. "crunch" must be translated into a concrete experience: ease of breakage, sound, hardness and sensation during chewing.

In the EU, a food can carry a “high fibre” claim when it contains at least 6 g per 100 g or 3 g per 100 kcal. This applies to the finished snack, not the dry mix. The European framework for nutrition claims sets out these conditions. Water loss during baking changes the final weight and therefore the nutrient values per 100 g.

Which fibre to choose for crackers and breadsticks

Shortlist ingredients by composition and the type of product you want to achieve. For an initial comparison, record the supplier, product reference, particle size and dosage. The bakery fibre guide expands on the selection criteria.

An experimental study using citrus seed fibres and wheat fibre assessed cracker composition, texture, acceptance and water activity. Differences in flavour acceptance highlight the need to measure the complete experience as well as fibre. This does not validate these ingredients in every recipe or any Mali Fibras Granados mix.

Water, resting and forming: preparing for even drying

As a development protocol, start with a reference recipe and change one variable at a time. Adjust water so the dough can be processed without excessive cracking or sticking that prevents forming. Record resting time, as performance can change between mixing and sheeting.

Check actual thickness at several points within and between pieces. Thin edges and a thick centre make baking uneven. For breadsticks, record cross-section and length; for sheeted crackers, also check docking or lamination where these are part of the process.

Baking and drying: compare more than colour

Colour helps describe the product, but does not replace moisture and water-activity measurements. Record oven load, position, time and temperature during the trial, and compare pieces with equivalent dimensions.

If the snack darkens before reaching the desired texture, one trial option is to separate colour development from moisture removal more effectively through the baking profile or an equipment-compatible drying stage. Check flavour, fracture and yield; no single time and temperature adjustment works for every recipe.

Moisture and water activity: why measure both

Moisture content indicates the quantity of water in a food. Water activity, or aw, expresses its relative availability and is used to study stability. A study of crackerbread used mechanical and acoustic measurements to assess how crunch changes at different water activities. The useful approach is to establish this relationship for the specific snack, rather than copy a single limit from another formulation.

Propose with Quality an acceptance range that combines aw, sensory texture and safety conditions. An isolated data from aw does not demonstrate the complete shelf life. In snacks with fats or seeds we also have to evaluate the evolution of flavour and oxidation.

What to check when the snack loses the crunch

The following table is a proposed diagnostic guide to order trials, not a list of confirmed causes.

The package is part of the final formulation

Compare the snack inside the material and closure that is intended to market. It records cooling and packaging conditions, verifies seal integrity and asks the supplier for barrier data to water vapor and oxygen according to product needs.

A storage trial of packaged rice crackers studied the evolution of moisture and acceptance to model its conservation. The practical application for development is to measure the whole food-package-conditions. The shelf life of that product cannot be transferred directly to a cracker with another recipe.

Test plan before scaling production

Includes cost per bag saleable: ingredients, process, packaging and rejections with a consistent accounting criterion. Sensory and physical controls are completed with the manufacturer's safety and shelf life plan.

Frequently Asked Questions

Does a recipe for bread with fibre serve directly for breadsticks?

It can guide the development, but the format needs its own adjustment of structure, thickness, cooking and conservation. The nutritional values of a bread are also not transferred to the snack without recalculating them.

Does drying more always improve the crunch?

No. Compare hardness, fragility, colour and taste. The goal is a nice and stable bite, do not remove water without limit.

Can you combine protein and fibre?

Yes, as a goal of developing a complete recipe. The combination can change dough, texture and cost; both objectives should be set from the start.

Develop your snack with fibre with Mali Fibras Granados

We can assess the application of Fibra Verde, Prebiomix or a bespoke mix according to the format. See also fibre solutions for bakery and the context of fibermaxxing.

Share the snack type, forming process, oven, flavour profile, nutritional objective and intended packaging. Request information for developing high-fibre crackers or breadsticks.