Key Takeaways
- Bread improver in baking solves two problems bakers cannot control: inconsistent flour quality and starch staling (retrogradation) after baking.
- A quality compound improver combines amylase, glucose oxidase and emulsifiers — each targeting a different result (volume, gluten strength, softness).
- The right improver can increase finished loaf volume by 30–100%, depending on flour and formula.
- Three main types cover most needs: strong-gluten (for weak flour), anti-aging (for shelf life) and comprehensive (both).
- Dose matters: too little does nothing, too much causes side effects. Always read the product manual first.
- Buy from reputable, large-scale suppliers and avoid any formula containing potassium bromate, which is banned.
Why Bakers Rely on Bread Improvers
Among baking ingredients, bread improver products are among the most common. They are not a main raw material of bread, yet almost every professional baker uses one. With so many products on the market, many buyers are unsure why they need one and how to choose. This guide explains what bread improver in baking actually does, the main types available, and how to use it correctly.
Flour quality is outside the baker’s control
Bakers cannot change the flour they receive, but they can steady its performance through process control — most practically by adding an improver. That stabilises flour behaviour and the quality of the final bread.
Starch stales after baking
Once bread leaves the oven, wheat starch begins to retrograde (recrystallise). The crumb hardens and sheds, and eating quality drops. Effective bread improvers slow this process, which is why they have become the first choice for many bakeries.
What Bread Improver Does in the Bakery
So what does bread improver in baking actually achieve? Its functions fall into three practical groups.
Improves dough stability and machinability
It strengthens the dough through mixing and fermentation — better mixing tolerance and a more stable ferment. In practice that means fewer surprises on the line.
Increases loaf volume
It delivers a larger, well-shaped loaf with a more uniform internal structure, which is what most buyers and consumers notice first.
Keeps bread soft and delays staling
It maintains softness for longer by slowing starch retrogradation (recrystallisation), directly extending shelf life.
How to Choose the Right Bread Improver
With so many functions on offer, how do you choose? Professional bakers start with the ingredient list and pick a quality product that contains amylase, glucose oxidase and emulsifiers. You can read the full bread improver selection guide on our site, and the FDA food additives guidance explains how these ingredients are regulated.
Start with the ingredient list
Amylase hydrolyses starch into dextrin and reducing sugar. That slows starch recrystallisation (delaying staling) and increases loaf volume.
Emulsifiers improve dough elasticity, toughness and both water- and fat-binding. They increase volume, refine the crumb, and slow starch retrogradation.
Glucose oxidase is a safe, effective dough oxidant. It promotes disulphide bonds between proteins and strengthens the gluten network.
Match the type to your flour and goal
Compound improvers are favoured by many bakers. Because each ingredient behaves differently, suppliers tune the formula ratio to different customers and cost targets, producing distinct types:
- Strong-gluten type — for weak-gluten flour.
- Anti-aging type — for extending shelf life.
- Comprehensive type — combines strong-gluten and anti-aging effects.
Bread Improver Types Compared
The table below maps the three common types to their function, best use and typical ingredients. After choosing, review our Just Long baking ingredients range to match a formula to your line.
| Type | Main function | Best for | Key ingredients |
| Strong-gluten bread improver | Strengthens gluten network, improves dough tolerance | Weak or inconsistent flour | Gluten strengtheners, glucose oxidase |
| Anti-aging bread improver | Delays starch retrogradation, extends shelf life | Packaged / long-shelf-life bread | Emulsifiers, amylase |
| Comprehensive bread improver | Volume + softness + structure together | General bakery production | Amylase + emulsifier + oxidase blend |
Why Use Bread Improver: The Technical Case
Beyond a softer crumb, bread improver in baking solves measurable dough problems that ordinary flour cannot.
Meeting market and quality expectations
Bread is a staple convenience food. Consumers want bread that is safe, soft, nutritious, easy to digest and portable. Before adding improver, ordinary bread flour meets gluten, water-absorption and stability specs, but the dough is elastic, hard, brittle and slow to ferment, and it yields small, dense, easily cracked loaves. Improver corrects this.
Typical quality targets for the finished dough: flour water absorption ~60%; dough stability 10–12 min; softening degree <50 Bu; dough resistance 600–700 Bu; resistance-to-extensibility ratio 3–5; dough energy 120–180 cm². The EFSA food additive evaluations and the food additive safety standards we follow set the boundaries for what may be used.
The improver’s own effects
Measured on the line, a good improver delivers:
- Improves dough rheology and machine handling (mixing tolerance; prevents collapse before and after the oven).
- Improves oven spring so the crown is upright and full.
- Increases finished volume by 30–100% (depends on flour and formula).
- Improves internal structure: uniform, fine, white and even.
- Improves taste — more gluten development and sweetness.
- Improves water retention, delays staling and extends shelf life.
How to Use Bread Improver Correctly
Choosing well is half the job; using it correctly is the other half. Three rules keep results consistent.
Read the instructions first
Read each product’s manual in detail: performance, main function, dosage and method. Check the composition and confirm the main purpose matches your goal.
Use the right amount and method
Too little achieves nothing; too much causes side effects. Mix the improver evenly with other ingredients during dough mixing — uneven distribution is the most common cause of inconsistent results.
Adjust for weather
Improvers contain enzymes. In cold northern winters, pre-heat the dough water, then add the improver so the enzymes activate properly. If you need help tuning dosage for your line, contact our baking specialists.
Frequently Asked Questions
What does a bread improver do in baking?
Bread improver in baking stabilises the dough, increases loaf volume and slows staling. It strengthens gluten, refines the crumb, and keeps bread soft for longer by slowing starch retrogradation. Most formulas combine enzymes and emulsifiers to cover several of these effects at once.
How does bread improver keep bread soft?
It slows starch retrogradation — the recrystallisation that makes bread go hard after baking. Emulsifiers and amylase in the improver hold moisture in the crumb and delay recrystallisation, so the loaf stays soft and the shelf life extends by days rather than hours.
Which bread improver should I choose for weak gluten flour?
Choose a strong-gluten type bread improver. It is formulated for weak or inconsistent flour and uses gluten strengtheners such as glucose oxidase to build a stronger network. Match the dose to your flour test results rather than a fixed rule.
Why should bread improvers avoid potassium bromate?
Potassium bromate is a dough oxidant that many regulators have banned because of health concerns. Reputable suppliers have removed it from their formulas. Always check the ingredient list and buy from large, reputable companies that publish their food safety standards.
Can you use too much bread improver?
Yes. Too little does nothing, but too much causes side effects such as off-flavours, sticky dough or poor structure. Follow the product manual’s dosage and mix it evenly into the dough. When in doubt, run a small bench test before scaling up.
How much bread improver should I add to dough?
Dosage depends on the formula and flour, so always follow the product manual. Typical use is a small percentage of flour weight. Mix it evenly with dry ingredients during dough mixing; uneven distribution is the most common cause of inconsistent results.
What ingredients are in a compound bread improver?
A compound bread improver usually blends amylase, glucose oxidase and emulsifiers. Amylase feeds fermentation and slows staling, glucose oxidase strengthens gluten, and emulsifiers improve texture and softness. Suppliers tune the ratio to different customers and cost targets.
When should bread improver be added in cold weather?
Improvers contain enzymes that work best at the right temperature. In cold winters, pre-heat the dough water first, then add the improver so the enzymes activate properly. Avoid adding improver to very cold water, which slows its effect on the dough.
