Kryos® 2.0

Why Kryos® 2.0

Kryos® 2.0: a single system for cooling and controlling the oxygen level in the crushed grapes

Whenever crushed grapes come into contact with air, they can absorb up to 8 ppm of oxygen and trigger oxidative processes that require corrective measures involving sulfur dioxide. Kryos® 2.0 solves the problem at its root: positioned downstream of the destemmer-crusher, it cools the crushed grapes, removes dissolved oxygen, and saturates the mixture with CO₂ or N₂, all fully automatically.

Refrigeration and Inerting in a Single System

Whole grape skins, less lees during winemaking

Wine-making with reduced use of sulfur dioxide

Power That Makes a Difference

Kryos® 2.0 delivers cooling capacity of up to 400,000 Fr/h in CO₂ mode and 200,000 Fr/h in N₂ mode to the winery. It handles crushed grape flow rates of up to 350 q/h, with an outlet temperature of +1/+2°C at atmospheric pressure.a

Biogenic CO₂

All of SIAD’s food-grade CO₂ is biogenic: it is recovered from organic sources, purified, and certified as food-grade. Excluding the conversion processes, it can be considered carbon-neutral.

Gas Award in Viticulture and Enology

For years, SIAD has been sponsoring an international research award dedicated to the applications of gases in the wine production chain. This initiative involves researchers, technicians, companies, and consortia, and fosters shared innovation in the sector.

Kryos® 2.0 in the Wine Cellar: Products and Services

SIAD supplies the Kryos® 2.0 system, the food-grade cryogenic gases required for its operation, and ongoing support services that ensure consistent performance throughout the entire harvest season—from tank installation to consumption monitoring and automatic refills.

Cool and inert the crushed grapes with Kryos® 2.0

A AISI 304 truncated cone heat exchanger, with no moving parts or geometric irregularities, controlled by a PLC with dedicated software. It operates in batch or continuous mode downstream of the destemmer-crusher, reducing mechanical stress on the skins and minimizing the formation of lees compared to traditional heat exchangers.

Biogenic carbon dioxide as a refrigerant gas

Kryos® 2.0 is powered by CO₂ E290, supplied from a cryogenic tank. Used in both its gaseous and cryogenic states within the crushed grape mass, it forms a two-phase flow at approximately -80°C that cools, inertizes, and saturates the skins without causing thermal shock or cold burns, with a cooling consumption of 1.1–1.2 kg CO₂ per quintal per °C.

Liquid nitrogen for cooling, reducing CO₂ emissions

For wineries that prefer to limit the amount of carbon dioxide added to the crushed grapes, Kryos® 2.0 can also operate with cryogenic N₂ E941. The same system manages the gas via dedicated software, with an injection mode designed to replicate the thermal and inerting effects achieved with CO₂.

Gas Always Available with Flexigas

Flexigas is SIAD’s highly flexible service that guarantees the continuous availability of liquid gas, with consistent delivery characteristics that can be adapted to peak consumption during the harvest. Kryos® 2.0 operates without interruption, even on days of peak demand.

Do you chill the crushed grapes during the harvest?

Our experts will configure Kryos® 2.0 for your crushing line, select the most suitable gas (CO₂ or N₂), and assist you with integration with upstream and downstream machinery.

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Related Applications

Other SIAD Applications for the Wine Industry

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Dry ice during harvest

Bottling and Oxygen Management

Water Treatment