When the Crush Gets Real

I remember my first crush day seven years ago. It was a gorgeous sunny fall day as we prepped the equipment at the crush site. Once the truckful of grapes arrived, we got busy distributing the loot into crates of 50 lbs, making sure that everyone got what they ordered. We then moved like clockwork, running the grapes through the crusher-destemmer. It was backbreaking but satisfying work.

Crush Day 2016 - grapes heading home

Looking back, I wish every crush was like that. Call it the beginner’s luck, but I have since learned that crush days often don’t go that smoothly. Without the resources of a commercial winery, a typical crush event for hobby winemakers can be challenging and chaotic. Let me quash any romantic notion and share some of my experience.

It’s Not Always Sunny in Snoqualmie

The crush site for my winemaking club is conveniently located in Snoqualmie, close to the gateway between eastern and western Washington and also between the vineyards and the winemakers. We process our grapes in the open area outside the storage unit that contains the club’s winemaking equipment. There is no roof or canopy to protect us, the grapes, or the equipment from the elements. Unlike the weather on my first crush day, the more typical Pacific Northwest fall weather ranges from light drizzle to straight downpour and even hail.

Crush Day 2023 - processing grapes in the rain

The club rules are based on the principle that we are in this together. It means all the winemakers involved will work together to prep the equipment, weigh and distribute the grapes, process the berries, and finally clean up the sticky grape-y mess. Regardless of whether you ordered 100 lbs or 1,000 lbs of grapes, you’d stay for the four to five hours needed to crush the grapes. Now, imagine doing this in the cold and wet fall weather.

Not American Pickers

Grapes, like many agricultural products, are best picked early in the morning. Harvest is a busy period as vineyards coordinate pick dates while keeping in balance the optimal grape ripeness, the forecasted weather, and the available vineyard crew. It is a wonder how the stars were ever aligned to pull that off, but they did for the most part. Still it is easy to tip the balance and in the area that we often take for granted - migrant vineyard workers.

Harvest by Vindemia Winery on Unsplash

In the past several years, vineyards have been grappling with labor shortage, initially due to immigration crackdown and more recently the pandemic. As a result, grapes were sometimes picked past the prime hours, impacting the grape quality. For the club, this also means hours of delay on the same-day crush, extending grape processing into nightfall. This leads to the next set of challenges.

Noise, Lights, Action!

Using the outside of a storage unit to crush grapes is ideal for numerous reasons. You can retrieve and set up the necessary equipment quickly. When the crush and cleanup are done, the equipment are returned to storage, just feet away. All is well till you have to crush in the dark. The storage unit has no power outlet. The only source of light comes from a low voltage bulb that is operated by an analog timer, similar to the one you use to run your bathroom fan. 

Crush Day 2017 - crushing in the dark

Where one generator is used to fuel the crusher-destemmer in the day, a second is needed to power the heavy-duty flood lights at night. Even then, head lamps are donned to illuminate areas that are missed by the lights. More generators also means more noise to compete with while coordinating crush activities. 2017 crush day was by far the most challenging for that reason. We finally completed the crush close to midnight, exhausted but relieved.

Crushing, but Not Crushed

The anticipation of crush day is a mix of excitement and anxiety for me. Oftentimes it is not till a few days prior that the harvest and crush date is confirmed. And you pray - for good (enough) weather, for manageable amount of grapes to process, and for no delay. 

Crush day is not exactly the image of Lucille Ball stomping grapes in a wooden vat or grape fighting with the Italian winemaker. You do what must be done till all the grapes are processed - crushing, but not crushed. Once the grapes are home with me, that is when the real fun begins - pitching the yeast, punching down the cap, and guiding the fermentation process. I love all of that! 

Soon it will be time to press the grapes. While not quite the mess that crush day is, it is a feat in itself and a topic of another post. In the meantime, I shall enjoy the buzzing of the yeast transforming grape juice into wine.

Three Vintages, Four Grapes, Five Wines

As this most unusual year comes to a close, I decided to revisit some of my wines in the spirit of not-so Auld Lang Syne: three vintages, four grapes, five wines. If nothing else, tasting and learning from the past helps prepare you for the next vintage. So here's what I've learned.

Revisiting past vintages

2016 Abscession (Syrah, Chandler Reach Vineyards, Yakima AVA)

This is my first vintage and my last bottle. My winemaking teacher, Steve Foisie, called this the proof-of-concept vintage. He coached us through the chemistry of red wine making; from crushing grapes to alcoholic and malolactic fermentations, and then wrapping it all up with stabilization and bottling. Nothing fancy.

First Crush

Technical Specs

• 100 lbs of Syrah harvested in mid September 2016
• Upon completing alcoholic and malolactic fermentations, matured in glass carboy with no oak
• 1.5 cases bottled in mid February 2017
• Residual sugar: 0.35%, pH = 3.78, TA = 0.73

Tasting Notes

• Color: Medium ruby
• Aroma: Surprisingly fresh with strawberry and cherry
• Palate: Dry, nice balance of fruit and herb, with a hint of eucalyptus, while retaining good structure
• Body: Medium plus
• Acidity: Medium
• Tannins: Medium plus
• Finish: Long with a hint of eucalyptus

My Lesson: Sanitize, sanitize, sanitize!

The first vintage was the most nerve wrecking. My main goal was to prevent the wine from turning into vinegar. This meant rigorous cleaning and decontaminating of everything in close proximity to the wine. Good sanitation practice allows the yeast to properly complete fermentation, and the wine to mature and stabilize. Four years later, I am pleased and somewhat surprised that the Abscession has retained a nice structure despite a higher-than-desired pH and zero oak contact. The wine remains fresh although it has lost some of its fruit forwardness.

2017 Midnight Crush (Cabernet Sauvignon, Artz Vineyards, Red Mountain AVA)

This is my second vintage, and my first time using oak. I am not a fan of oaky wine, but I wanted to take the edge off the tannic Cab Sauvignon grapes with micro-oxygenation from the barrel. To limit wood contact and oak flavor extraction, 20 of the 25 gallons of wine were racked in and out of the 8-gallon barrel. I was also excited about the more concentrated flavors as the porous barrel allowed for a mild evaporation.

Round-robin racking in and out of barrel

Technical Specs

• 400 lbs of Cab Sauvignon harvested in mid October 2017
• 80% in new French oak for two months, 20% unoaked
• 10.5 cases bottled in early April 2018
• Residual sugar: 0.34%, pH = 3.62, TA = 0.79

Tasting Notes

• Color: Medium ruby
• Aroma: Cherry Jolly Rancher
• Palate: Dry, cherry with a bit of tobacco, nice structure
• Body: Medium plus
• Acidity: Medium
• Tannins: Medium plus, smooth
• Finish: Lingering with cocoa notes

My Lesson: Respect the oak!

Oak in wine is like salt in food. If you can taste it, you probably have too much of it. Because I was using a small new French oak barrel, I was careful with wood contact to avoid creating an oak bomb. Once the desired taste profile was achieved, the oaked wine was racked out of the barrel, and a new batch of unoaked wine was racked in. The outcome was a lovely structured wine, balancing fruit with nuanced notes of tobacco and cocoa. The judges at the Washington State Fair agreed and gave it a second place in the Cab Sauvignon category last year!

2018 Political Series (Merlot, Les Collines Vineyard, Walla Walla AVA, and Cabernet Franc, Chandler Reach Vineyards, Yakima AVA)

For this third vintage, I attempted two new varieties - Merlot and Cab Franc. As far as winemaking math goes, one plus one equals three. Yes, we ended up with three distinct wines after blending and tasting. I procured another small new French oak barrel for this vintage. Like before, we ran 20 gallons of wine in and out of the 8-gallon barrel in a round robin fashion to manage wood contact.

Technical Specs

• 200 lbs Merlot harvested in mid September 2018
• 100 lbs Cab Franc harvested: Early October 2018
• Bottled all three wines in early June 2019
• Overall blend residual sugar: 0.23%, pH = 3.89, TA = 0.62

Blending and tasting

Kamala Walla Walla (100% Merlot free run)

The free run Merlot tasted so good that it was the first to go into the barrel. It was kept there for two months to complete malolactic fermentation and started aging. The wine was then aged and stabilized for another six months in glass carboys. Three cases were produced.

Tasting Notes

• Color: Medium ruby
• Aroma:  Cherry and red fruit
• Palate: Cherry Jolly Rancher with herbal undertones
• Body: Medium plus to full body
• Acidity: Medium plus to high, lively
• Tannins: Medium plus and smooth
• Finish: Lingering and rounded

AOC (60% Cabernet Franc/40% Merlot)

Next into the barrel was a blend of 60% Cab Franc and 40% Merlot. There might have been a bit of malolactic fermentation left, but it was mostly maturing in oak for two months. The wine was then aged and stabilized for another three months in glass carboys. Three cases were produced.

Tasting Notes

• Color: Garnet
• Aroma: Strawberry and floral-scented
• Palate: Strawberry, floral with cocoa undertones
• Body: Medium plus to full
• Acidity: Medium plus to high
• Tannins: Medium plus
• Finish: Long with a cherry finish

Labeling wine bottles

RBG (70% Merlot/30% Cabernet Franc)

Last but not least, a blend of 70% Merlot and 30% Cab Franc was racked into the barrel for 3 months of aging and stabilization. Two cases were produced.

Tasting Notes

• Color: Garnet
• Aroma: Cherry and floral-scented
• Palate: Dry, cherry with cocoa undertones
• Body: Medium plus to full, well rounded
• Acidity: Medium plus to high
• Tannins: Medium and smooth
• Finish: Lingering with a tart finish

My Lesson: Plan but flex!

You heard parents say that raising two children is more than twice the work of raising one. The same is true for making two grape varieties. While not the sexiest part of winemaking, planning the logistics around two fermentation timelines is essential. In return, you get so much more as well. I started out thinking I was going to make a Merlot/Cab Franc blend. I ended up with three wines - a single varietal and two blends! So while I had my plan, I learned to keep an open mind and flex where the palate took me. And I was rewarded for that.

So let not auld acquaintance be forgot. But take a glass of kindness and drink to the next vintage!

Winemaking, Halloween Edition

HAPPY HALLOWEEN!

Truth be told, the whole year feels like a long stretched-out Halloween, with forest fires and pestilence being the marks of the 2020 vintage. Dozens of family-owned Napa wineries, among over a thousand structures in the valley, were decimated by the most recent Glass Fire. While Washington vineyards mostly escaped unscathed from the forest fires, the pandemic continues to loom over the state as hospitals brace for the fall surge of COVID-19.

It was early March when I placed my grape order. I decided to go with Red Mountain Cabernet Sauvignon from Tapteil Vineyard. The vineyard also supplies to Quilceda Creek Vintners, Long Shadows Vintners, and Cadence Winery. It seemed like it would be a slam dunk, and I was going with easy.

I mostly love Red Mountain Cab for its eagerness to please, both the palate and the wine makers. Also, the AVA is often ahead of the others in terms of Growing Degree Days (GDD), which usually indicates an earlier harvest.

WSU Growing Degree Day Chart

Like many things in 2020, nothing went quite as planned.

By late spring, Eastern Washington, the heart of the best vineyards in the state, became a COVID-19 hotbed, with possibly the highest rate of infection from Washington to California. Cultural and political factors strongly influenced the way the pandemic was managed. All that added to uncertainty in the vineyards and the health of their workers.

Then came Labor Day, when high winds blew through the State, downed power lines, and sparked 80 fires. Over 300,000 acres were torched. While not quite the catastrophic Glass Fire, the smoke pool in Washington was ubiquitous and air quality so bad that many were driven indoors. If the coronavirus pandemic was not enough concern to one's respiratory health, the smoke would seal the deal. 

Map of Labor Day fires

The fires and smoke were thankfully contained when harvest rolled around for the red wine grapes. But the Cab in our allocated lot just refused to ripen! In fact, our grapes appeared to go into reverse aging. Sugar (Brix) was decreasing, and acidity (TA) was rising. After a few false starts, we finally went with a different parcel where the grapes were ready to go. A harvest date was selected. 

The fall day arrived and did its round of sunshine, rain, and chill. At the crush site, the winemakers were appropriately masked as we weighed and distributed the grapes before running them through the crusher and de-stemmer. It had been a long wait for the grapes, and I was happy to take the must home.

Pitchforking grapes into totes

Weighing grapes

50 lbs of grapes in each tote

That was ten days ago, and my wine is now in the last stretch of alcoholic fermentation. It may be a time of pestilence, pumpkins, and potions outside, but for me, it is punchdown in my garage cellar.

Have a great time trick-or-treating with your best Halloween mask on and stay safe!

First Vintage

Last October I posted about my first winemaking experience; well at least from crush through the primary fermentation and press. That was probably the most involved part of winemaking, when twice to thrice-daily punchdowns took place with constant measuring of temperature and Brix. That was when the juice was transformed from 'must' to wine as sugar got fermented into alcohol and carbon dioxide.

Secondary Fermentation

After the press, we moved into secondary fermentation of the wine in air-locked vessels. We used a 5-gallon glass carboy and three gallon jugs to use for top-up (I'll get into that later). This period was generally uneventful and less involved, but there were a few things that required attention.

Controlling the temperature. Malolactic (ML) bacteria, which was added to the juice the day before press, were quietly converting tart-tasting malic acids into fuller-bodied lactic acids. ML bacteria are sensitive to numerous factors (e.g. pH, SO2, and alcohol levels), but the one thing that worried me was my ability to keep the wine within the optimal temperature range (>70 degrees). The carboy and gallon jugs were wrapped in blankets, snugged in cardboard boxes, and gently warmed by a heating pad. My biggest fear was stuck fermentation since there were no easy tests to perform at home or measurements to track progress. I resorted mostly to prayers.

Lees left behind from racking

Racking, racking, racking. Even though most of the solid remains of the grapes and yeast (also known as pomace or marc) were removed during the press, there were still some remaining in the wine as it went through secondary fermentation. These are called the lees. Decomposing yeast in wine could cause off flavors. In order to remove the lees, we did multiple racking of the wine during secondary fermentation. Racking is the process of siphoning wine off of dead yeast into new containers.

We siphoned a total of four times; the first time was 24 hours after press, the next two were a week apart, and the final one was a month out.

Racking also has two other advantages:

• It clarifies the wine. You could literally see that the juice got clearer after each racking. In many cases, clear wine is just a matter of aesthetic. If the wine tastes good, cloudiness may not indicate flaws.
• When done correctly, racking can introduce controlled amount of oxygen into the wine. During the early part of secondary fermentation, oxygen has positive effects on unfinished wine by stabilizing the color and tannins. It allows the wine to mature gracefully and become more complex. In the later part of the secondary fermentation, caution is needed to minimize oxygen contact. If acetic bacteria is exposed to wine and oxygen, it will turn the juice into vinegar (acetic acid). 

It is important to note that you will lose wine during racking due to spills and as you avoid siphoning lees. The loss of wine during racking may increase the air space between your wine and the airlocks. You can top up the carboy with wine from the jugs or similar store-bought wine (preferably same varietal and AVA). Alternatively, you can add sterilized marbles into your containers to raise the wine level. I personally put some of my top-up wine into a sanitized plastic container, squeezed out as much air as possible, and capped it. It worked!

Final Testing

After more than three months of secondary fermentation, we performed the final testing of our wine to check on sugar, acidity, and ML fermentation. During the primary fermentation, which lasted less than two weeks, I was constantly monitoring and measuring progress. For the much longer secondary fermentation, I really had no idea what to expect. But I was pleasantly surprised by the outcome.

• Residual sugar was at 0.3%. This was probably the least of my concern since we pressed the wine at a really low Brix. Residual sugar over 0.6% is a concern for still red wine as it may cause re-fermentation in the bottle.

Measuring residual sugar in the wine

• pH was 3.78. This was slightly higher (or less acidic) since harvest, which was at 3.53. But it was still within the normal range.
• Titratable acidity (TA) was 7.3125. TA measures the amount of total acids and was higher than our reading during harvest, which was 7.125. It was a bit higher than I like, but not bad.
• ML fermentation appeared to have completed. While not the most accurate way to test the concentration of malic acid, the chromatography test is cost-effective. The solvent used for the chromatography is extremely toxic, and the test takes several hours. After putting dots of wine sample onto a piece of chromatography paper, it was left in a big glass jar with the solvent and the lid closed tight. 

With one exception, most of the wines appeared to have completed ML fermentation. Yellow patches indicated presence of acids. The top row of yellow revealed the presence of lactic acid, which is the goal of the ML fermentation. The bottom row of yellow revealed the presence of tartaric acid, which is also what we expected. Any yellow in the middle role revealed the presence of malic acid, which would indicate that ML fermentation has not completed. This would show that the wine has not stabilized and will need more time for ML fermentation to complete.

Chromatography test revealed that one of the wines still had malic acid

Bottling

Once the wines had passed all the tests, they were ready to be bottled. We got the bottles that we have saved up, cleaned, and sanitized. (We recycled bottles. If you buy new bottles, you can skip the above steps.) Sulfites were added to the wine just before bottling. Sulfites are a preservative and will keep the wine fresh. They are also anti-oxidants and will protect the wine from oxidation.

Adding sulfites to wine

Siphoning wine into bottles

Corking wine bottles

Finally, five months after harvest and crush, our first vintage was bottled and proudly named Abscession - a joke, as my husband was recovering from an abscess the day of the harvest. Special kudos go to my partner-in-wine, Alisa. That's her work on the label, making an access look classy. The wine will officially be released in the summer, so check back later.

Abscession 2016 Syrah

My Verdict: I am having so much fun learning about winemaking. It gave me a greater appreciation for wine. I don't think going commercial is my calling, but I'm planning for my next vintage already!