Alcoholic fermentation of wine is a biological process, triggered with the addition of yeasts, in which the sugars in the must turn into ethyl alcohol, CO2, heat and other by-products.

Gaseous carbon dioxide (CO2) causes the solids, mainly the skins, to rise to the surface of the must. This phenomenon forms a compact layer at the top, called the cap. The cap protects the must from bacteria and oxidation.

Pumping over

The must can be pumped over to make the mixture in the tank consistent. This technique consists of transferring the fermenting must from the bottom to the top of the tank to soak the cap. Spraying devices can also be used to distribute it evenly over the surface and they also prevent the formation of channels that could affect the maceration process.

Request information

Red Wine Pump Over

Solution

Other benefits of pumping over

- Aeration of the must to increase and activate the yeasts.

- Preventing the cap from drying to avoid the formation of bacteria and mould on the surface.

- Keeping the cap cool (the skins in the cap can reach high temperatures and pumping over cools them down and helps prevent the growth of thermophilic bacteria).

- Distribution of the yeasts.

- Extraction of substances from the skins, especially tannins, colours and aromas.


The seeds of the grapes gather at the bottom of the tank during fermentation and, unlike the skins, carbon dioxide cannot make them float to the surface. Therefore, it is necessary to pump them up onto the top of the cap so that more of their tannins can be extracted.

The number of times and frequency with which the wine needs to be pumped over in each tank is decided by the oenologist depending on the grape variety, fermentation phase and the wine being made.

The ideal pump for pumping over

To perform the process of pumping over in the best conditions, INOXPA offers the RV range of centrifugal pumps with helicoidal impeller.

These pumps are ideal for pumping over since they are designed to pump high flow rates of liquids with solids in suspension and avoid damage to the solids (different sizes depending on pump size, maximum particle size ø = 75 mm).

Advantages of RV pumps

- Lower energy input to the wine: thanks to their excellent design with CFD tools, they obtain very high performance levels (>70%). This means a lower increase in the temperature of the pumped liquid.

- Low energy consumption thanks to their high performance.

- Minimal damage to solids (skins, seeds, pulp...): the helicoidal impeller and the very precise clearances between the impeller, cover and pump casing guarantee minimum recirculation inside the pump and let solids through without damaging their structure.

- Easy maintenance.

- No need to place a grid to serve as strainer in the tank.

- CE-1935/2004 and FDA compliant food grade materials.

- Motor in compliance with the IEC standards (RV version) and with NEMA standard (RVN version).

Documents

Operating principle

Other benefits of pumping over

- Aeration of the must to increase and activate the yeasts.

- Preventing the cap from drying to avoid the formation of bacteria and mould on the surface.

- Keeping the cap cool (the skins in the cap can reach high temperatures and pumping over cools them down and helps prevent the growth of thermophilic bacteria).

- Distribution of the yeasts.

- Extraction of substances from the skins, especially tannins, colours and aromas.


The seeds of the grapes gather at the bottom of the tank during fermentation and, unlike the skins, carbon dioxide cannot make them float to the surface. Therefore, it is necessary to pump them up onto the top of the cap so that more of their tannins can be extracted.

The number of times and frequency with which the wine needs to be pumped over in each tank is decided by the oenologist depending on the grape variety, fermentation phase and the wine being made.

The ideal pump for pumping over

To perform the process of pumping over in the best conditions, INOXPA offers the RV range of centrifugal pumps with helicoidal impeller.

These pumps are ideal for pumping over since they are designed to pump high flow rates of liquids with solids in suspension and avoid damage to the solids (different sizes depending on pump size, maximum particle size ø = 75 mm).

Advantages of RV pumps

- Lower energy input to the wine: thanks to their excellent design with CFD tools, they obtain very high performance levels (>70%). This means a lower increase in the temperature of the pumped liquid.

- Low energy consumption thanks to their high performance.

- Minimal damage to solids (skins, seeds, pulp...): the helicoidal impeller and the very precise clearances between the impeller, cover and pump casing guarantee minimum recirculation inside the pump and let solids through without damaging their structure.

- Easy maintenance.

- No need to place a grid to serve as strainer in the tank.

- CE-1935/2004 and FDA compliant food grade materials.

- Motor in compliance with the IEC standards (RV version) and with NEMA standard (RVN version).

Materials and Options

Document № FA.Remontado.2_ES
Title Remontado del Vino Tinto
File type .pdf
Summary La bomba ideal para el remontado
    Download
  • E-mail
Document № FA.Pump-over.2_EN
Title Red Wine Pump Over
File type .pdf
Summary The ideal pump for pumping over
    Download
  • E-mail
Document № FA.Remontage.2_FR
Title Remontage Vin Rouge
File type .pdf
Summary La pompe idéale pour le remontage
    Download
  • E-mail
Document № FA.Rimontaggio.2_IT
Title Rimontaggio del Vino Rosso
File type .pdf
Summary La pompa ideale per il rimontaggio
    Download
  • E-mail

Cookies Policy

This website uses cookies. We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners who may combine it with other information that you’ve provided to them or that they’ve collected from your use of their services. However, blocking some types of cookies may affect your experience on the site and the services we can offer. Cookies policy page

Reject Accept all cookies
Allow selection
Necessary (2)
Preferences (0)
Statistics (7)
Marketing (11)
About cookies

Necessary cookies help make a website usable by enabling basic functions like page navigation and access to secure areas of the website. The website cannot function properly without these cookies.

Preference cookies enable a website to remember information that changes the way the website behaves or looks, like your preferred language or the region that you are in.

Statistic cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously

Marketing cookies are used to track visitors across websites. The intention is to display ads that are relevant and engaging for the individual user and thereby more valuable for publishers and third party advertisers.

Name Provider Purpose Expiry Type
cc_cookie_accept www.inoxpa.com Stores the user's cookie consent state for the current domain 1 year HTTP
PHPSESSID www.inoxpa.com Preserves user session state across page requests. Session HTTP
collect Google Used to send data to Google Analytics about the visitor's device and behavior. Tracks the visitor across devices and marketing channels. Session Pixel
_ga Google Registers a unique ID that is used to generate statistical data on how the visitor uses the website. 2 years HTTP
_ga_# www.inoxpa.com Used by Google Analytics to collect data on the number of times a user has visited the website as well as dates for the first and most recent visit. 2 years HTTP
_gat_ Google Used by Google Analytics to throttle request rate 1 day HTTP
_gid Google Registers a unique ID that is used to generate statistical data on how the visitor uses the website. 1 day HTTP
fr Facebook Registers a unique ID that is used to generate statistical data on how the visitor uses the website. 3 months HTTP
_fbp Facebook Registers a unique ID that is used to generate statistical data on how the visitor uses the website. 3 months HTTP
IDE Google Used by Google DoubleClick to register and report the website user's actions after viewing or clicking one of the advertiser's ads with the purpose of measuring the efficacy of an ad and to present targeted ads to the user. 1 year HTTP
ads/ga-audiences Google Used by Google AdWords to re-engage visitors that are likely to convert to customers based on the visitor's online behaviour across websites. Session Pixel
VISITOR_INFO1_LIVE YouTube Tries to estimate the users' bandwidth on pages with integrated YouTube videos. 179 days HTTP
YSC YouTube Registers a unique ID to keep statistics of what videos from YouTube the user has seen. Session HTTP
yt-remote-cast-installed YouTube Stores the user's video player preferences using embedded YouTube video. Session HTML
yt-remote-connected-devices YouTube Stores the user's video player preferences using embedded YouTube video. Persistent HTML
yt-remote-device-id YouTube Stores the user's video player preferences using embedded YouTube video. Persistent HTML
yt-remote-fast-check-period YouTube Stores the user's video player preferences using embedded YouTube video. Session HTML
yt-remote-session-app YouTube Stores the user's video player preferences using embedded YouTube video. Session HTML
yt-remote-session-app YouTube Stores the user's video player preferences using embedded YouTube video. Session HTML
yt-remote-session-name YouTube Stores the user's video player preferences using embedded YouTube video. Session HTML
Cookies are small text files that can be used by websites to make a user's experience more efficient. The law states that we can store cookies on your device if they are strictly necessary for the operation of this site. For all other types of cookies we need your permission. This site uses different types of cookies. Some cookies are placed by third party services that appear on our pages. You can at any time change or withdraw your consent from the Cookie Declaration on our website. Learn more about who we are, how you can contact us and how we process personal data in our Privacy Policy. Please state your consent ID and date when you contact us regarding your consent.