ProNutro, lets talk about it

Thoughts on the new "improved" ProNutro

  • Love it

    Votes: 5 5.7%

  • Hate it

    Votes: 28 32.2%

  • Whats ProNutro?

    Votes: 4 4.6%

  • It changed?

    Votes: 50 57.5%
  • Total voters
    87
  • Poll closed .
In industrial food production, the transition from roller drying to extrusion represents a shift from a conductive, open-air heating method to a mechanical, high-pressure system. These processes alter the physical and chemical properties of the cereal in distinct ways.

1. Roller Drying (The Traditional Process)​

Roller drying (or drum drying) is a method used to dry out liquid or semi-solid slurries into flakes or powders.
  • The Process: A thin layer of the cereal slurry is applied to the surface of large, rotating metal drums that are heated internally by steam. As the drum turns, the moisture evaporates, leaving a dry film that is scraped off by a stationary blade.
  • Starch Gelatinization: The prolonged contact with the high-heat surface (usually between 120°C and 150°C) allows for thorough starch gelatinization and protein denaturation.
  • The Maillard Reaction: Because the product is exposed to heat in an oxygen-rich environment for several seconds, a chemical reaction occurs between amino acids and reducing sugars. This creates the specific aromatic compounds and browned, toasted flavor profile characteristic of the original ProNutro.
  • Physical Structure: The scraping process creates irregular, dense flakes with high porosity, which affects how the cereal absorbs liquid when prepared.

2. Cooker-Extrusion (The Modern Process)​

Extrusion is a continuous process that combines several unit operations, including mixing, cooking, kneading, and forming, into a single step.
  • The Process: Raw ingredients are fed into a hardened barrel containing a rotating screw. The combination of mechanical shear (friction) and external heat transforms the ingredients into a plasticized "dough."
  • High-Pressure Discharge: The dough is forced through a shaped die at the end of the barrel. When the product exits the die into atmospheric pressure, the internal moisture flashes into steam, causing the product to expand or "puff."
  • Chemical Impact: The residence time (the time the food spends being heated) is much shorter in an extruder than on a roller dryer—often only 10 to 60 seconds. While this is efficient for cooking starches, it significantly limits the time available for the Maillard reaction to develop complex flavors.
  • Physical Structure: Extrusion creates a more uniform, expanded cellular structure. This results in a lighter, more "airy" mouthfeel compared to the grittier, denser texture produced by roller drying.

Comparison of Industrial Characteristics​


FeatureRoller DryingCooker-Extrusion
Heat TransferConduction (Surface contact)Friction and Convection
Moisture ContentHigh slurry (approx. 70%)Low dough (approx. 15–30%)
Energy EfficiencyLow (High steam/heat loss)High (Mechanical energy conversion)
Output ConsistencyVariable (Dependent on film thickness)High (Computer-controlled)
Flavor ProfileToasted, caramelized, complexNeutral, cereal-focused, "clean"

Why Manufacturers Switch​

The primary drivers for moving to extrusion are operational costs and scalability. Roller dryers require significant floor space, high steam consumption, and frequent maintenance of the "doctor blades" and drum surfaces. Extruders are more compact, use less water, and allow for much higher throughput, though they struggle to replicate the specific chemical "toasted" signature provided by the slower roller-drying method.
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No wonder why the new one tastes like sand(not that I have bought it). The Maillard reaction is the thing that gives lots of nice flavours.
 
Corelli said:
When I was small, my dad bought 25kg bags of pronutro that was stored in the freezer, my mom would scoop out for us every morning and pour on warm milk. Had it for 5 years as breakfast straight. Still hate it. Wont ever buy it for my kids.

I tried the future life option a while ago, developed kidney stones from it, as it turns into well cement. Binned the entire batch. Futurelife Granola is great though but their pronutro version is rubbish.
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Weak, I've been having Futurelife Smartfood for about 7 years every week day, no issues.
 
Never thought I'd live long enough to see the enshitification of Pronutro hahaha
 
qscwbt said:
Key changes and facts about the new ProNutro:
  • Reduced Sugar: The formula features reduced sugar per serving compared to the previous, according to News24.
  • Texture/Taste: It has a different, "bitty/crunchy" texture, described by some fans as "lumpy" and having a different mouth feel, according to consumer feedback on Reddit.
  • Production Changes: The move was prompted by an effort to improve manufacturing, reduce carbon emissions, packaging, and water usage, noted EWN.
  • Permanent Change: The company has indicated this is not a temporary change and the formula is here to stay, says EWN.
  • Discontinued Product: The Whole Wheat variant was dropped due to low demand.
    View attachment 1902116EWN +3
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I hate the lumpy thing, it's really put me off. I make my Pronutro in a cup with a higher milk ratio so that I can stir it and drink it. Now it feels like a traditional porridge that gets thick, which you need to use a spoon for. You can increase the milk ratio even more but you still end up with these pieces of "lumps"...
 
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