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  • A Visit to La Caravedo, Home of Pisco Porton, in Ica, Peru

    Hacienda La Caravedo is the oldest working distillery in the Americas and the place where they make Pisco Porton. It's located in Ica, Peru, about a four hour drive south of Lima. I visited in the spring of 2014. 

    The distillery dates to 1684. Below is a picture of the document establishing the distillery. 

    Pisco Porton 330th Anniversary Papers (2)

    The grounds hold the distillery, vineyards, and this huge house, which is newly-constructed. 

    La Caravedo Distillery Pisco Porton Peru house3

    You might recognize it from the bottle label. The house belongs to the owners of the brand. They were preparing for Easter when I visited so I didn't get to peep inside. 

    Porton_Bottle_cutout

    The vineyards are located between the house and the Andes mountains you can see in the background. 

    La Caravedo Distillery Pisco Porton Peru workers vineyard

    The Old Part of the Distillery

    The distillery is an imaginative combination of the very old part dating to the 1600s and a very new part dating back a couple of years. 

    The original distillery was all run by gravity. A schematic from the Porton brand book is below. The process goes grapes to juice to resting to fermentation to distillation to resting again. 

    Porton distillery schematic

     

    The grapes would come in from the winery and be carried up the stairs into a large circular pit with drains. That shallow (a few feet deep) pit is under the central round canopy in the picture below.

    People would stomp on the grapes to release the juice, which would flow down to the next level for resting and fermentation. 

    La Caravedo Distillery Pisco Porton Peru old distillery botijas

     Then in the part where the square canopy is, grapes would be further crushed using the old grape screw press. 

    La Caravedo Distillery Pisco Porton Peru wine press2
    La Caravedo Distillery Pisco Porton Peru wine press2

    The grape juice ran down into a set of vats. They would allow the juice to sit together with the grape skins for a day. Pisco Porton still does this step, which distiller Johnny Schuler says is unusual.

    Then the juice is transferred to another adjacent vat and fermented. The below picture shows the maceration and fermentation vats in the old distillery. 

    La Caravedo Distillery Pisco Porton Peru old distillery fermentation tanks
    La Caravedo Distillery Pisco Porton Peru old distillery fermentation tanks

    From the fermentation vat, the wine flows through a channel over to the old stills. Somehow I didn't get a picture of the channel, but it's a small open cement trough that runs across the lawn at ground level.

    The old style stills at La Caravedo and other distilleries are called falcas. The top of the stills are at ground level (where the wine runs in), and the bottom is a level down. These old-style stills don't have a bubble cap like a typical pot still; they're like big boxes with a pipe running out the side. On top they're just a big copper cap. 

    These particular copper falcas, built into the original distillery's footprint, are probably 150-200 years old. 

    La Caravedo Distillery Pisco Porton Peru falca2

    The stills are wood-fired from below.   

    La Caravedo Distillery Pisco Porton Peru fueling still3

    After the spirit comes off the still (from a pipe on the side rather than through a swan's neck like in a pot still) it passes into the next chamber, the condenser.

    The condenser is just a big pool with a copper coil running through it.  The vapor from the still condenses back into liquid as it travels around the coil deeper into the pool. 

    Here is a view from the top of the pool, which is at the same level as the top of the falca.

    La Caravedo Distillery Pisco Porton Peru worm tub

    Then in the next chamber down at the bottom of the pit the spirit is received. From a full distillation of 1500 liters, they produce 450 liters of pisco puro or 250 liters of pisco mosto verde (more on that in another post). 

    Peruvian pisco is distilled a single time, not twice like almost every other spirit in the world. 

    In the olden days, pisco would then have been rested in botijas, the ceramic/clay vases seen in every pisco distillery (often just for decoration now that we have cement and stainless stell). 

    La Caravedo Distillery Pisco Porton Peru old distillery botijas

     

    The New Part of the Distillery 

    The new part of the distillery is a tall building of cement and glass, located across a small courtyard from the grape press structure. This is a view of the new distillery from the top of the grape press. 

    La Caravedo Distillery Pisco Porton Peru new distillery10
     The fountain in the picture isn't just an aesthetic touch. The water used to cool the condensing steam from distillation heats up and needs to be cooled. At La Caravedo, they shoot that hot water up the fountain to cool in the air, a trick I haven't seen used at any other distillery.

    Inside the distillery are rows of huge stainless steel tanks. These hold the fermenting wine.

    La Caravedo Distillery Pisco Porton Peru distillery tanks
    La Caravedo Distillery Pisco Porton Peru distillery tanks

    On either side of the distillery are gargantuan cement tanks for holding the distilled pisco. Pisco always rests after distillation. In the old days, it rested in the ceramic botijas jugs. These cement tanks, which are on the outsides of the distillery to catch the sun, are meant to mimic the resting in botijas. 

    La Caravedo Distillery Pisco Porton Peru resting tanks

     The still room is enclosed by glass. The stills are traditional copper pot stills, with round caps on top. Thus these produce a different spirit than the old-style falcas. 

    La Caravedo Distillery Pisco Porton Peru new distillery2
    La Caravedo Distillery Pisco Porton Peru new distillery2
    La Caravedo Distillery Pisco Porton Peru new distillery2
    La Caravedo Distillery Pisco Porton Peru new distillery2

     

    So, now we know the two ways that pisco is distilled and rested at La Caravedo in the modern and ancient distilleries on the property. In the next post we'll look at how these technologies are combined to give us the mosto verde blend of Pisco Porton. [Here is the post.]

    Below are some more pictures from the grounds and my awesome day at the distillery.

    La Caravedo Distillery Pisco Porton Peru old distillery
    La Caravedo Distillery Pisco Porton Peru old distillery
    La Caravedo Distillery Pisco Porton Peru old distillery
    La Caravedo Distillery Pisco Porton Peru old distillery

     

  • 2500 Words on the Blood and Sand Cocktail

    A few years back I wrote a long feature about the Blood and Sand cocktail, made with scotch, cherry brandy, orange juice, and vermouth.

    It was written for the German magazine Mixology, but recently they have put the story online in the original English.

    Blood and sand

    For the story I covered the origins of the drink as best as I could find them, and many variations of the drink. There is a large discussion of the best type of orange juice to use, alternates to sweet vermouth and Cherry Heering, and how to find out if your flamed orange peel is spitting wax and pesticides onto your drink.

    Give it a read over at Mixology.eu.  

     

  • Making a Clear Ice Block from the Bottom Up

    6a00e553b3da2088340120a77d8b26970bNearly five years ago I figured out a method to make clear ice blocks in a picnic cooler in what we now call the Directional Freezing or Cooler Method. It works from the top-down. Now a reader has figured out a moderately easy way to freeze in a cooler from the bottom-up. 

    An index to all of the ice experiments on Alcademics is here.

    In the top-down method, one simply fills an insulated cooler with water and leaves the top off. The water freezes only from the top down, and all the trapped air and impurities are pushed to the bottom, where a cloudy 25% or so will form if you let it freeze that long. 

    Freezing From The Bottom-Up

    Commercial ice machines like the Clinebell freeze blocks of clear ice by freezing from a cold plate on the bottom, while a water pump near the surface keeps water circulating (thus preventing ice from forming on the surface). 

    Reader Nome Park wrote me to tell me about a method he developed that sort of combines these two methods for the home user, producing a mini-Clinebell-type block. 

    The cooler is insulated on all sides except for the bottom, and a small aquarium pump is used to keep water circulating at the top. 

     

    Noname-2

    The white area on the bottom is the interior of the cooler with the foam/plastic cut off so it's no longer insulated on the bottom.

     

    Requires:

    • A big freezer, like a horizontal freezer.
    • A larger cooler. He uses a Coleman 20-can Party Stacker cooler, which is taller vertically and thus best for freezing bottom-up
    • A small aquaium pump

    Method:

    1. Cut the cooler bottom outside layers off a few inches up from the bottom. Park did this using a Dremmel tool and a knife. *Important* You only want to cut off the outer plastic and the foam insulation. Do not cut out the interior plastic otherwise it will not hold water. 

    IMG_2657

    2. Insulate the top lid. Park made a 2.5-inch thick piece of foam that fits snuggly inside the cooler (since the lids on these coolers tend not to be insulated. (Pump is just there for scale. It is not attached.)

    Noname-3

    3. Fill the cooler with water up to where the foam will hit it from the top. 

    4. Hang the (unused for your fish tank) aquarium pump from the top, so that it's just beneath the surface of the water. Put the foam piece on top and the lid on that. Park cut a little section out for the pump power cord. 

    Noname-4

    5. Turn the pump on and wait for it to freeze. In Park's freezer, it takes  2 days and 2 hours to freeze (50 hours) into a block that isn't all the way frozen. If it goes too long (t 72 hours or so) the pump will freeze into the block and probably break.

    6. Remove the cooler from the freezer, turn off the cord, turn the cooler upside-down, and wait for the block to slide out. (An hour is about normal). Now you're ready to cut it up. 

    Noname-5

     

    I asked Park if he tried this without the pump just to see what happens, but he had not tried it, basing his system on the Clinebell. 

    So, for you ambitious sorts with large freezers, this might be a way to make larger blocks than with the small cooler at home. 

    Thank you much to reader Nome Park who not only took the time to perfect this method but also to send me detailed description and pictures. 

     

  • International Eggnog: The History of the Drink and Variations Around the Globe

    Way back in 2010, I wrote a story for Mixology Magazine about Eggnog. The story was published in German (I wrote it in English and they translated) but this year they put the English version of the story online. 

    Screen Shot 2014-12-22 at 9.52.12 PM

    It covers what I could learn about eggnog at the time (keep in mind this is 4 years ago), including the history of the drink and its possible relation to British egg drinks like posset and wassail, along with other American drinks like Grog and the Tom & Jerry.

    It also covers international egg drinks, including:

    •  Eierpunsch – Germany
    • Lait de Poule – France, Canada
    • Coquito – Puerto Rico
    • Rompope – Mexico
    • Biblia Con Pisco – Peru
    • Sabajón of Colombia
    • Advocaat from Holland

    The story also includes a few eggnog recipes. Check it out here. 

     

  • More Than 40 Drink Books Published in 2014 for Reading or Gifting

    This has been a great year for cocktails and spirits books- tons have come out, and the majority are written by well-respected bartenders and other experts. I haven't had time to read the majority of them, unfortunately, but below is a list of all the ones I know about. 

    IMG_6595

    Notable Cocktail and Spirits Books Published in 2014:

    Whisky Books:

     

    Other Spirits:

     

    Beer, Food, Sake, Sherry, Mixers, Etc. 

     

    Cocktail Recipe Books: 

     

    Bartending/Technique Books:

     

     

    Books from Bars or About Bars:

     

     

    Historical Books:

     

     Fun Drink-Related Books:

     

     

     

     

     

     

     

     

     

  • A Nine-Page Feature on Trick Dog’s Caitlin Laman

    The fine folks at the Bay Area Newsgroup, which includes newspapers the San Jose Mercury, Oakland Tribune, Contra Costa Times, and others, asked me to write a long profile of Trick Dog's Caitlin Laman, so that's what I did. 

    Screen Shot 2014-11-29 at 10.36.38 AM

    The story comes out in this Sunday's Eat Magazine, an insert into all those papers. I'm not sure if it's going online in traditional format, but here it is in Issu, the online magazine format. If it comes out as traditional text I'll share the link. 

    They did a nice job! Lots of photos and a lovely layout. 

    The article also includes illustrated recipes by 8 Bay Area bartenders:

    • Caitlin Laman of Trick Dog
    • Suzanne Long of Longitude
    • Nick Kosevich for Mortar and Pestle
    • Antoine Nixon of Jack's Oyster Bar and Fish House
    • Russ Stanley of Jack Rose Libation House
    • Jimmy Marino of The Lexington House
    • Brandon Clements of The Village Pub
    • Andrew Majoulet of Rich Table

    They asked for ten but chose eight – sorry if yours was one of the ones left out. 

    Screen Shot 2014-11-29 at 10.48.06 AM

    Go read the story here!

    Screen Shot 2014-11-29 at 10.36.55 AM

     

  • The 2014 Spirits Gift Guide Is Now Up On Details.com

    Too early in the year for  holiday gift guides? Perhaps! 

    Each year for Details.com I write a gift guide of spirits to consider for holiday gifting or just winter drinking. This year's list includes 11 spirits and 1 book, nearly all of which came out in the later half of the year (as Details is all about new stuff).

    6-2014-holiday-gift-guide-drinksSpirits are mostly from well-known brands and include bottles from:

    • Milagro
    • Auchentoshan
    • Monkey 47
    • Ancho Reyes
    • Michter's 
    • The Glenlivet
    • Herradura
    • Grey Goose
    • Lost Spirits
    • Patron
    • Parker's Heritage Collection
    • And a book by some bartenders you know.

    Check it out on Details.com here. Note: It's a slideshow so there is lots of clicking, sorry.

     

  • Fact-Checking the Clear Ice Balls Method

    Recently I posted a method of making perfectly clear ice balls using an insulated mug, which was sent in from Alcademics readers. 

    The physics of the thing made perfect sense but I hadn't actually tried it myself at the time. This post is just to say that I use this method now and make nice round ice. Lots and lots of it.

    IMG_6447

    The ice in the picture above isn't cloudy; just some of it is frosty on the outside. 

    I use this stainless steel tumbler a small ice ball mold that it sits in. Easy. 

    An index of all the ice experiments on Alcademics is here.

     

  • How Many Potatoes are in One Bottle of Vodka?

    Answer: This many.

    Potato pile3

    This the how many are in one bottle of Karlsson's Vodka, that is. That is one 15-pound bag of Russet potatoes and two 1-pound bags of mini-potatoes, all stacked in my extra-large salad bowl. Perhaps I need to get a real hobby.

    Karlsson's uses about 17 pounds of potatoes- nearly twice as much other potato vodka brands, because Karlsson's uses small heirloom potato varietals from southern Sweden. These potatoes are rich in flavor and protein but lower in carbohydrates than traditional Russet potatoes shown above.  They are less efficient for distillation than fuel potatoes- but delicious to eat and drink. 

    To put it in perspective, I took the picture next to an empty Karlsson's bottle:

    Potato pile2

    That's a lot of potatoes! They (well not these) will be fermented, distilled up to 96% ABV, then diluted back down to 40% for bottling strength. 

    KarlssonsBottle

    This post is part of a little project on potatoes and Sweden I'm doing for Karlsson's Vodka. Karlsson's Gold is a blend of seven heirloom potato vodkas. 

    Read about my adventures to Sweden with Karlsson's and learn how it's made here

     

  • Enzymes in Spirits: What Are They and What Do They Do?

    In the process of making many types of alcohol enzymes are used, but I didn't know very much about them. So I decided to do some reading and share what I've learned. Or what I think I've learned anyway. 

    Enzymes are used in spirits production before fermentation. They are used to expose fermentable sugars in base ingredients so that they can be fermented by yeast. For example, a raw potato with yeast added to it won't produce potato beer (or not much of it). But when heated and with enzymes added then it will.

    Let's review spirits production:

    1. The base ingredient is prepared for fermentation. This can be as simple as crushing a grape or stalk of sugar cane, but many other raw ingredients must be prepared by methods such as malting (barley), baking (agave), heating in water (many things, called 'mashing' in whisky), and/or adding enzymes. 
    2. The ingredient now has its fermentable sugars exposed, so yeast can do its job and convert these sugars into alcohol.
    3. The result is a beer/wine with a low percentage of alcohol.
    4. The beer/wine is concentrated through distillation. 

    What Are Enzymes?

    • Catalysts that perform and speed up chemical reactions. They are present in biological cells. They do a lot of work in nature.
    • They convert molecules into other molecules. An example of this is the enzyme lactase, which breaks a lactose down into two glucose molecules. People who are lactose-intolerant do not produce the enzyme lactase so they can't process lactose. 
    • Enzymes aren't fuel for reactions – they're not consumed by the reaction they catalyze.
    • Enzyme activity can be affected by environmental things like temperature, pH, and pressure. (For most fermentable materials, the mash of hot water and raw material is heated to very specific temperatures so that the enzymes will work.)
    Enzyme2

    The enzymes are B,C,and D in this illustration. The material A is broken up. Source.

    Common Uses for Enzymes

    Some easy-to-understand cases where enzymes are used:

    • In meat tenderizers that break down proteins into smaller proteins, making it easier to chew.
    • In stain removers to break down fats or proteins on clothing. 
    • In digestion. From Wikipedia, "An important function of enzymes is in the digestive systems of animals. Enzymes break down large molecules (starch or proteins) into smaller ones, so they can be absorbed by the intestines. Starch molecules, for example, are too large to be absorbed from the intestine, but enzymes hydrolyze the starch chains into smaller molecules, which can then be absorbed."

    Enzymes in Beer Production

    The website HomeBrewTalk.com has a great, detailed chapter on enzymes in fermentation. They lay out how grains for beer are often mashed (heated with water) to two different temperatures.

    Mashing is the process in which the milled grain is mixed with water. This activates enzymes that were already present in the barley seed or have been formed during the malting process. These enzymes work best in particular temperature and pH ranges. By varying the temperature of the mash, the brewer has control over the enzyme activity.

    In barley starch makes up 63% – 65% of the dry weight. Starch is a polysaccharide (very large chains of glucose) which is insoluble in water. Brewer's yeast, however, can only ferment monosaccharides (glucose, fructose), disaccharides (maltose, sucrose) and trisaccharides (matotriose).

    In order for that starch to be converted into water soluble sugars (fermentable and unfermentable), two processes need to happen. First the starch is gelatenized to become water soluble. For starch found in barley and malt this happens above 140ºF (60ºC).  Secondly the activity of the amylase enzymes break the long chained starch molecules into shorter chains.

      

    Enzymes in Scotch Whiskey

    The malting process in scotch whiskey is a process to expose enzymes. To make malted barley, the dried grains are soaked in water so that the seeds just start to sprout, then the grain is dried to halt the process. Then when the grain is later mashed (has hot water added to it), the enzymes will convert the starches in the grains into fermentable sugars.

    According to Ian Wisniewski in Michael Jackson's Whiskey,

    "Growth hormones released by the grain also trigger the creation and release of enzymes that begin breaking down the cell walls and protein layers, in order to access the starch… The enzymes collectively termed 'diastase,' include alpha-amylase and beta-amylase (the latter is already present in barley). These enzymes are essential for the subsequent conversion of starch into fermentable sugars during the subsequent process of mashing."

    Enzymes Used in Many Spirits

    In other spirits, enzymes are added, which saves the malting step or speeds the natural reaction with enzymes naturally present. This is true in bourbon (from corn), in other spirits from grain (like vodka), and for potato vodka.   

    Most bourbon mashbills (recipes) contain a certain portion of malted barley. This is because the malted barley provides the rest of the batch with enzymes needed to break down the material into simpler sugars. However, in modern times many (if not all) major bourbon producers also add enzymes to the corn, wheat/rye, and malted barley mashbill to speed things up. 

    A good overview of the chemistry of this and list of enzymes available for purchase can be found on this IM biotech company site

     

     

    A Word on Karlsson's Vodka 

    KarlssonsBottleI'm doing a research project on potatoes for Karlsson's Vodka, which I visited a few years ago. 

    From the few potato vodka distilleries that I have visited, it seems that adding enzymes is standard in the process of preparing potatoes for fermentation. So I used this project as an excuse to learn more about enzymes.

    If you think about a raw vs. cooked potatoes, they get a bit sweeter after you cook them so we can guess that heat helps break down the starch into sugars- at least partially. Enzymes help with the rest.

    Karlsson's uses "virgin new potatoes" to produce their vodka. These are very small, skinless potatoes that are full of flavor that translates into the final spirit.  

     

     

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