Silage additives
Take the next step. Rethink silage additives.

What is Hydrosil?
HydroSIL is our line of silage additives designed to optimize fermentation, stability, and energy retention in silage. Whether it’s corn, GPS, grass, legumes, or dry forage—HydroSIL ensures that silage acidifies quickly, ferments cleanly, and remains stable throughout the entire storage period.
HydroSIL protects what you harvest.
More energy in the feed. More gas in the fermenter.
How HydroSIL Works
✔ supports lactic acid production
✔ lowers pH more quickly and consistently
✔ inhibits yeast and mold
✔ improves aerobic shelf life
✔ increases digestibility and energy flow
✔ protects against dry matter and nutrient losses
HydroSIL ensures that your harvest remains high-performing.
The HydroSIL Product Family
Every product has a specific purpose.
Hydrosil FORTE
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Hydrosil FORTE is a silage additive suitable for use with high-protein and moist silage. A mixture of homofermentative bacteria rapidly produces large amounts of lactic acid, thereby suppressing Clostridia.
The starter strain Pediococcus pentosaceus dominates the early fermentation phase and eliminates competing microorganisms through rapid acidification. This is particularly important in high-protein silage and silage that has not been wilted sufficiently.
Hydrosil FORTE was able to reduce the butyric acid content to 0. Afterward, an acid-tolerant Lactobacillus plantarum takes over and lowers the pH to a stable level. At the same time, enzymes “break down” crude fiber components and release additional nutrients for lactic acid bacteria.
Hydrosil FORTE optimizes the fermentation acid profile toward lactic acid. The silage smells fresher and fruitier, and feed intake increases. The lower ammonia content also indicates faster fermentation. As a result, Hydrosil FORTE preserves valuable nutritional content.
Hydrosil QUATTRO BG
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Hydrosil QUATTRO BG is the ideal silage additive for biogas silage, designed to increase both gas yield and stability after opening. The high concentration of lactic acid bacteria ensures a rapid decrease in pH, thereby helping to eliminate competitive microorganisms.
Higher levels of lactic and acetic acids result in a significantly higher gas yield. The additional enzymes help break down crude fiber and accelerate the digestion of the silage in the digester.
The foundation of a healthy feeding regimen is stable, mold-free silage. Hydrosil QUATTRO BG contains a special heterofermentative strain that rapidly lowers the pH while ensuring stability through concentrated acetic acid production.
Through the combined action of Hydrosil QUATTRO BG, the pH quickly drops below the critical level, halting yeast proliferation. The result is stable silage that makes feeding a pleasure.
Hydrosil PI.X
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The silage additive HydroSil PI.X is an effective aid in biological silage production that enables the long-term stabilization of corn silage.
Here’s how the additive works: The lactic acid bacteria it contains promote particularly rapid acetic acid formation, which has an antagonistic effect and thus stops the growth and proliferation of yeasts. With HydroSil PI.X, you can successfully prevent heating and mold growth in your silage, thereby achieving a significant reduction in losses upon opening.
In addition, the HydroSil PI.X powder helps minimize silage losses before opening by rapidly lowering the pH level, enabling you to achieve better stability and consistently higher quality in your silage.
Hydrosil ACTIVE
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Hydrosil ACTIVE is a highly concentrated homofermentative silage additive that dominates fermentation from the very start.
A high dose of a selected Pediococcus strain rapidly produces large amounts of lactic acid, thereby ensuring a rapid drop in pH. This effectively suppresses undesirable fermentation competitors such as Clostridia.
At the same time, a special combination of enzymes breaks down hard-to-digest fiber components and releases carbohydrates. These additional carbohydrates are metabolized directly by lactic acid bacteria into preservative lactic acid. A rapid decrease in the pH value is “crucial,” especially for crops that are difficult to ensile, or for raw materials rich in crude fiber or protein.
Thanks to its bacterial profile and high inoculum density, Hydrosil ACTIVE ensures rapid fermentation and a characteristic fermentation acid profile.
What exactly are silage additives?
Silage additives are microorganisms and enzymatic components that actively control the silage fermentation process.
They ensure that the harvested crop:
- reaches the anaerobic state more quickly
- ferments cleanly and stably
- suffers fewer losses
- has a longer shelf life
- provides more energy
In short: Silage additives help preserve silage, not just store it.
Why Use Silage Additives?

Silage additives aren't a cost—they're a value driver
Even a 2–4% increase in energy yield fully covers the cost of the product.
In practice, the benefits are often even greater.
Hydrosil silage additives bring out the full potential of the crop—instead of letting it go to waste.
We provide you with the service you need
Stable
Silage starts with
the right silage additive.
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