Acetaia LEONARDI  traditions and experiences since 1871

The Vinegar farmhouse Leonardi started its activity in the 18th century but it is from the middle of the 19th century that it has been specialized in theproduction of balsamic vinegar, using the own raw material. In fact, the farmhouse is surrounded by 10 hectares of vineyards mainly with grapes varieties of Trebbiano (white grape) and Lambrusco (red grape). It is a closed cycle farm since all the production steps take place in the same plant.

The Balsamic Vinegar is a very unique condiment, produced in limited quantity because linked to the geographical areas of Modena and Reggio Emilia. It seems in fact that the special climate of this region, with high thermic shocks between the very hot summer and the chilly winter enables the grape must to ferment and maturate in the best conditions according to the traditional methods. This tradition is handed down by the Leonardi Family which repeats year after year the same production cycle of their balsamic vinegar, giving birth to an always renewed emotion. So let’s follow Giovanni, Clelia and their children Francesco and Clara at the mansion “Corte dei Campi Macri”, they will tell you about the long and fascinating life path of the real Balsamic Vinegar of Modena.

The production

Phase 1: The pick-up of grapes
The pick-up is still made by hand, according to the tradition, selecting the best bunches of Trebbiano and Lambrusco grapes. It happens during September and October, when the ratio between sugars and acidity is at its most and this is an important phase of the whole process because the quality and integrity of bunches are essential before going through the pressing. The other important operation is the cutting of branches which is made during winter and which determines the health of the plants and then of the future pick-ups.

Phase 2: The pressing
The squeezing of grapes is made with a “soft” system, to avoid the excess of Polyphenols present in the peel, seeds and stalks which delay the acetifying process and could provide bitterness to the end product. The must is then filtered to eliminate the residual solid parts and impurities.

Phase 3: The cooking
The must is cooked within 24 hours from pressing to avoid the fermentation, in stainless steel boilers, with open top and on direct fire for 36 – 48 hours until the juice reaches a concentration of 50%. First the must is boiled for 30 minutes to get sterilized, then it cooks slowly at 85°C. The cooked must is then cooled down and put on rest to decant until January.

Phase 4: The ageing
he must is put in batteries of wood barrels, made of minimum 9 barrels placed in decreasing size, from 180 to 10 litres. Each barrel is made of a different type of wood (oak, ash, juniper, cherry, mulberry, chestnut…) and is full for 75% of its capacity. The series of barrels are placed in the attics because there the temperature range is higher (very hot summers and chilly winters) which are optimal conditions for the ageing. The barrels are open to enable the natural concentration of the liquid by evaporation. The methods of ageing are usually handed down from father to son and do not follow one only rule, they depend on the long experience and personal taste of the master taster. The next phases happen during the ageing time and can last forever!

Phase 5:The transfers
During the ageing period, the Balsamic vinegar, subjected to the summer heat and the winter cold, is annually moved into another barrel to acquire the different essences of the woods. This delicate operation happens during winter, when the Balsamic Vinegar is “sleeping” because of the low temperatures which stop the fermenting activity. The transfer is the passage of the liquid from the bigger barrel into the nearby smaller barrel. On contrary, the replacement is the filling of the just emptied barrel. The first operation always includes the second one except for the first barrel which starts the battery and is only transferred with the cooked must. There is a constant control of the barrels to check the conditions of the container and its content.

Phase 6: The tasting
Every year sensorial tests are run on every barrel, to control the limpidity, the flavour, the colour and taste of the liquid. We use a glass container to pour the liquid taken from a barrel through the apposite glass pipette. For the visual test, it is better to use the light of a candle to evaluate the colour and consistency through the transparent container in backlight. The olfactory parameters include the intensity, the persistence of perfumes and the acidity, whereas the taste is checked through the intensity, the flavor, the harmony between sour and sweet and the acidity. A china spoon is preferred for the tasting as it does not alter the flavor. Various master tasters compare their results to guaranty the best objective quality.