A Portuguese Tradition – Distillation of Eau-De-Vie Using a 150 Year Old Copper Alembic Still

A Portuguese Tradition – Distillation of Eau-de-vie using a 150 year old copper Alembic Still. Modern civilization has brought us many conveniences and in a world where time is money we are always trying to find a quick and easy solution to our problems and to meet our needs with the least amount of hassle. So in fact life is easier and more relaxed than it used to be. But is it really? Or have we lost a certain quality due to the pressures and stresses of our daily lives and quality in the things we consume, as they are all now either canned or bottled with added preservatives. People are slowly realizing that the old fashion way of doing things is in fact much better and they are rediscovering traditions that were left behind which can bring us great pleasure. The following is a narrative of one of these traditions – distilling pomace or brolho (the solid matter that is left over after the juice is removed from the grapes) to produce eau-de-vie (grappa- wine brandy) with an alembic still that is at least 150 years old and a description of the techniques and equipment that was used by the older folk. You might say it is much easier just to go out and buy a bottle, but there is much more to the process than just obtaining the desired liquid, it is an experience that brings us pleasure, just like any other hobby. We also know that the final product is pure – just like baking a home-made cake or growing your own organic vegetables. This distilling experience took place in a small village near Monção, a town located in the north-west of Portugal, close to the Spanish border. The complete distilling process using a traditional Portuguese copper alembic took about 8 hours to complete (mind you – it was an enjoyable and relaxing experience) – this also included cleaning the pot for next year’s distillation. The day was beginning to break when we set off but you could tell it was going to be a beautiful autumn day as the sky was clear and the air crisp. Upon our arrival, we were greeted by Leandro’s rooster (Portugal’s national mascot), with his “cock-a-doodle-do” and by Leandro himself, the kind old gentleman who was going to give us the distilling demonstration. We could tell that Leandro had been expecting us for some time now, so this meant we were late! Leandro was anxious to start as there was much to be done until the end of the day. He led the way to the little hut where we were going to make the eau de vie. The first thing we saw was the cask hood (the area where the vapours gather) of Leandro’s alembic still. It was quite odd looking. Leandro explained the reason for this was that it was 150 years old. The hoods of most alembics manufactured today have more of a curved, onion shape top – but they all basically function in the same manner. Leandro told us, with certain detectable emotion in his voice, that this alembic still had belonged to his grandfather. During the Second World War, however, his father sold it to a neighbour as he was hard up for money and needed all the extra cash to get by during those difficult times. Leandro’s father, who was known as one of the best wine growers in the region, always spoke of the family alembic with grief. Leandro always felt a certain obligation to get the alembic back into his family’s possession. Years later he did just that. He asked his neighbour how much he wanted for the copper alembic that his father had sold him: “The yield of one distillation from Aires’ (his father’s surname) alembic” Leandro was very proud of his family’s 150 liters copper alembic. Commencing… The 150 litre alembic still was in a little hut. The copper pot (the bottom part of the alembic) was positioned in a clay base area. This would help maintain the heat source so essential to the distilling process. The copper pot was also assembled with a metallic belt structure on the exterior, to help turn over the pot and clean it at the end of the distillation. Close to the copper pot was a 20 liters glass jug. Leandro explained that it contained the remainder of last year’s distillation. In other words it contained the so called heads and tails from the previous distillation – the sections that must be separated (see Basic distillation laws). The first 50 to 200 ml (depending on the size of the still) of distillate that exits the condensing coil and the distillate at the end of the run which is referred to as the tails. Nothing resembling a condensing recipient could be found near the alembic still. The condensing recipient is where the vapours, upon coming in contact with a cold surface turn back into a liquid form. But in fact there was a large cement tank which held about 750 litres of water with the condensing coil inside. It was located right next to the copper pot. But why such a large recipient? Leandro explained that years ago there was usually only one person, who could afford to have a copper alembic in each village, so the owner of the alembic would distil eau-de-vie for the entire community, or at least for those who had wine and then had the pomace. Leandro’s grandfather happened to be one of the fortunate ones, and he needed a large condensing area of water as it would be a non-stop process for several days. Leandro explained that when it was time to make the eau-de-vie his grandmother and father would work during the day while his grandfather rested and then he would work all night long. So it was a 24 hour non-stop process. It would take more than 26 days and nights of non-stop distilling to fulfil all of the community’s requests. He added that even with such a large amount of water, this had to be changed on a regular basis as it would warm up. Leandro placed the large pails of pomace near the copper pot. Pomace, or brolho in Portuguese, is the solid matter that is left over after the grapes have been pressed in a mechanical press to remove all the juices. The brolho – the thin branches and grape skins- is left in the press until the moment when the distiller wishes to make the eau-de-vie, where it is placed in the alembic. Eau-de-vie is usually only made during the cold winter months between November and February so the brolho is maintained tightly pressed in the mechanical press in order to preserve the alcohol essences found in the grape skins. Leandro then started to fill the copper pot with plain water using a large blue plastic container. Leandro said he needed 6 to 7 jigas. What was a jiga you ask? It is a measuring unit that the old folk used to use and is equivalent to 10 litres. From our calculations this meant that 40% of the 150 litre alembic was filled with water. The final % alcohol at the end of the distilling process is dependant on the amount of water that is added at the beginning. The more water you place in the pot the lower the % of alcohol will be and vice-versa. Leandro looked inside the pot to verify that the water level was just right. He then went to get a handful of rye straw and placed this inside the copper pot. He explained that the straw did not let the fire, or heat source directly beneath the pot come into direct contact with the product that was being distilled. Should this happen then the grape brandy – eau-de- vie – would have a burnt flavour. As many distillers can not easily get their hands on rye straw, there are copper sieve trays which substitute the straw. There are also many copper alembic models which come with a copper sieve tray placed at the bottom of the pot intended for this purpose. He then grabbed the large recipients with the grape skins and one by one he turned them over into the pot. When the copper pot was almost full to the rim he pressed the brolho into the sides of the copper pot to make room for some more. Leandro however did not press the centre core otherwise the vapours of the distilling process would not be able to pass through the brolho into the vapour chamber of the lid. When he was finished the copper pot was filled with brolho right to the top. Leandro then went to get the jug with last year’s heads and tails and poured this evenly over the pomace before inserting the cask hood lid into the copper pot. Pouring the heads and tails over the pomance facilitates the chemical reaction between all the compounds. Leandro explained that if you did not have last year’s heads and tails to add, this could be substituted by a very high grade of eau-de-vie or another alcohol beverage which had no flavouring, such as vodka. Leandro proceeded to make a putty-mixture made of rye flour and water. With this he sealed the connections, or seams between the cask hood lid and the bottom. Leandro explained that he was sealing the still so that no vapours would escape through the seams.

Load more