Home Page
Italy Europe Germany France USA ??  

  OIL CULTURE
  The Olive Tree
Oil Production
Storing Oil
Olive Oil
Recurring Terminology
Tasting
Olive Oil and Health
In the Kitchen and on the Table

Storing Extra Virgin and Organic Oil
Extra virgin olive oil, as well as organic oil, is a live product and its qualities vary as time passes.

Once bottled, companies usually give a "best before" date between 12 and 15 months, but if it is kept in ideal conditions it can be more stable and retain its chemical and organoleptic characteristics for a longer period of time.

Oil's main enemies are temperature, light and oxygen; therefore, the 4 golden rules for a perfect oil storage are:

  1. PROTECT OIL FROM SUNLIGHT
  2. KEEP OIL AT ROOM TEMPERATURE OF AROUND 12-18°C
  3. AVOID CONTACT WITH OXYGEN
  4. MINIMIZE OIL CONTACT WITH WATER AND SOLID SEDIMENT WITHIN
Silos di acciaio inox1. PROTECT OIL FROM SUNLIGHT
It is important that oil is stored in containers that can protect it from the sun’s rays.
While stored by the company there is no issue with light if the product is kept in stainless steel silos.

The problem, therefore, tends to occur at the distribution stage, as it remains on the pallets or shelves. Today the general trend is to use dark glass or tins; some precautions remain valid, however, in order to prevent oil containers staying out under the sun for a long time, especially during transfer from one factory to another or from the shop to home.

2. KEEP OIL AT ROOM TEMPERATURE OF AROUND 12-18°C
Excessively low temperatures must be avoided as oil would freeze, but also excessively high temperatures must be prevented which would cause the oil to heat.
It is important to be aware that below 10°C, whitish deposits and suspended particles may form.
This phenomenon, which should be taken by the consumer as a warning, is in fact a natural phenomenon of the oil crystallizing due to the low temperature.
It first affects the saturated fats and suspended particles and then extends to the whole mass of oil should the temperature drops further.
Once the oil is brought back to an ideal temperature (12-18°C) it will become clear once again.

3. AVOID CONTACT WITH OXYGEN
Storage containers must be kept tightly closed to prevent oxygen from being held inside.
Before bottling oil must be stored inside drums and silos, preferably made of stainless steel, which can be easily washed, hermetically sealed and have a device at the bottom to allow for the removal of any deposits.
These containers must have devices that allow the insertion of noble or inert gases (gases with little propensity to react with other molecules) which are introduced into the "head space" left free by the oil as the container gradually empties.
These inert gases thus occupy that space that would otherwise be occupied by air and oxygen.

4. MINIMIZE OIL CONTACT WITH WATER AND SOLID SEDIMENT WITHIN
In order to do this it is very important to separate the oil from the deposits which negatively interfere with the oil.
This can be done naturally by decanting, letting the oil rest with the particles in suspension-dispersion consequently being deposited on the bottom.
The oil is then transferred and decanted into new clean containers or the deposit is removed if the container has a system for draining off it.
Another solution is to filter using filter systems that can work on the oil as soon as it is produced or before packaging.
Filtration is important to stabilize the chemical composition characteristics, thereby guaranteeing a longer product shelf life while retaining all the nutritional and organoleptic characteristics.
Compliance with these precautions is an essential condition for oil storage. Failure to do so may have the following negative effects: increased acidity, dulling of the fruity qualities or significant faults like rancidity, sludge or fermentation. The main cause of all this deterioration in oil quality is the oxidation of unsaturated fats.
   
OUR OILS Our Oils
Our range of oils has
been created to meet
the demands of
consumers, to satisfy
the requirements of
the ever more
sophisticated palates.
DISCOVER SAN GIULIANO OILS
FINE FOOD
The passion for quality
and good food is the
basis of San Giuliano
Specialities: a proposal
for a tasty
Mediterranean
delicacies
Fine Food
DISCOVER SAN GIULIANO SPECIALITIES
BEAUTY LINE
From San Giuliano
olives we created a
prestigious beauty line
with anti-aging properties.


Cuor d'Olivo Beauty Line
Cuor d'Olivo Beauty Line
DISCOVER OUR CUOR D'OLIVO BEAUTY LINE
COUNTRY RESIDENCE
AND RESTAURANT
Country Residence and Restaurant
A gorgeus residence surrounded by the green of the Sardinian country close to the sea.
A restaurant/pizzeria to taste the typical dishes from Sardinia and tasty pizzas with fresh ingredients.
THE RESIDENCE AND THE RESTAURANT

THE COMPANY
The Company
The Manca family vocation for olive oil production is the result of great experience and of unmatched technical skills.
A COMPANY DEVOTED TO QUALITY

OUR RECIPES
Recipes
San Giuliano Extra Virgin Olive Oil inspired the most renowned Sardinian chefs to create a number of Mediterranean dishes. These recipes combine easy preparation and simple ingredients.
TASTY RECIPES

NEWS - EVENTS
Seoul Food & Hotel 2017
16 May 2017 - 19 May 2017
Seoul, Korea

Seoul Food & Hotel 2017
KINTEX - Korean International Exhibition Center

ALL THE NEWS AND EVENTS