Showing posts with label malic acid. Show all posts
Showing posts with label malic acid. Show all posts

How to make homebrew hard cider

Friday, November 3, 2023
Brewing apple cider at home can be a delightful journey back to the sweet nostalgia of orchard-laden landscapes and the simple joys of fruit harvesting. As someone who grew up amidst the 'fruit bowl of New Zealand,' the experience of apple cider brewing is not just about creating a beverage, but also about invoking the essence of Hastings, where apples are a staple in every facet of life.

To embark on this journey of crafting your own hard cider, you need to start with the right variety of apples. The essence of your cider will come from the delicate balance of sugar and acidity, which is best achieved through a mix of late-season apples, ideally a combination of dessert and cooking varieties. The sugary sweetness and the robust tartness will lay the foundational taste profile of your cider.

Preparing Your Apples

Your first hands-on step is to prepare your apples. After a thorough wash, you'll want to transform them into pomace. If you don't have access to a scratter, don't fret; a little bit of manual labor can go a long way. Whether you're using a clean wooden post or the end of a sturdy kitchen utensil, your goal is to crush the apples just enough to liberate the juices without turning them into a puree.

Remember, the pomace should still have texture, a reminder that the best things in life require a blend of finesse and effort.

GUIDE TO BREWING CIDER


Crushing and Pressing

Once you have your pomace ready, it's time to extract the juice. If you have a press, great; if not, there are still ways to get the job done, albeit with a bit more elbow grease. The pressing is an art—apply too much force, and you risk over-extracting; apply too little, and you miss out on precious juice. It's about finding that sweet spot where every twist and turn yields a satisfying trickle of potential.

Sanitation and Fermentation

Sanitation cannot be overstressed in home brewing. Every piece of equipment must be pristine to ensure that no unwelcome bacteria take residence in your precious juice. Once you've sanitized everything and have your juice ready, it's time to introduce a Campden tablet to the mix. This little tablet is your first defense against wild yeasts and bacteria that could turn your cider to vinegar.

After a 48-hour rest period for the juice to become acquainted with the Campden tablet, it's time to introduce the yeast. This is the pivotal moment where you, much like a conductor, set the tempo for the fermentation process. Stirring the mixture at regular intervals ensures that your cider develops a harmonious symphony of flavors.

The Waiting Game

As the yeast works its magic, the anticipation builds. Patience is key. This is not just about the final product, but about the journey. As the days pass and the juice slowly transforms, you're given a chance to reflect on the process, on the memories of those orchards, and on the knowledge that you're creating something that's uniquely yours.

The Final Touches

As a home brewer approaches the culmination of the fermentation process, the liquid alchemy that transforms apple juice into cider is almost complete. Yet, it's in these final stages where a brewer's skill and preferences can significantly influence the end product. The choices made here are not just functional; they're an expression of the brewer's artistry and intent.

Sweeter Cider Considerations

If a sweeter cider is desired, one might consider back-sweetening. This involves adding sugar or apple concentrate after fermentation has ceased, and the yeast has been neutralized or removed. This prevents the added sweetness from being converted into alcohol, retaining the desired sugary notes.
Another method is to halt fermentation early by chilling or using additives that stop the yeast activity, preserving some of the apple's natural sugars.

Crafting a Drier Cider

For those who prefer a drier cider, the key is to let fermentation run its full course, allowing the yeast to consume most of the sugars in the juice. The result is a cider with a more pronounced tartness and alcoholic strength, and less residual sweetness.

Aging the cider for a longer period can also enhance the dryness, as it allows more complex flavors to develop that can overshadow any lingering sweetness.

Each decision reflects the brewer's taste and the desired sensory experience. Do they want a cider that greets the palate with a sugary kiss or one that offers a crisp, tart handshake? Should it dance with bubbles or sit tranquilly in the glass? The answers to these questions aren't merely preferences—they're the brewer's signature on their creation, a testament to the nuanced craft of home brewing.

How to Expertly Manage pH Levels in Your Wine Using Malic Acid

Thursday, November 2, 2023
Picture this iconic scene from the classic TV series, Knight Rider: K.I.T.T., the talking car, is submerged in an acid bath, only to emerge completely stripped of its exterior. This vivid image serves as a stark reminder that not all acids are created equal, especially when it comes to the delicate art of winemaking. 

In the realm of wine, there’s one acid that stands out as the preferred choice for balancing pH levels - malic acid.

Derived from the Latin word "malum," meaning apple, malic acid is a naturally occurring compound found in various fruits, with apples and grapes topping the list. 

Have you ever sunk your teeth into a Granny Smith apple and experienced that sharp, tangy taste? 

That's malic acid in action, a close relative of citric acid and a popular ingredient used to impart a sour flavor to various food products. 

Those salt and vinegar chips you find irresistible? 

That tang comes from a combination of vinegar and malic acid.

using malic acid to reduce the pH of home made wine
Believe it or not, this is a representation of a wine maker adding malic acid to their homemade wine...


When it comes to winemaking, the role of malic acid is nothing short of crucial. It serves as a valuable tool for winemakers, allowing them to fine-tune the pH levels of their wine to achieve the perfect balance between acidity, sweetness, and bitterness. The significance of this balance cannot be overstated. A wine with an excess of acidity will have a sharp, sour taste that overwhelms the palate, while a wine lacking in acidity will feel flat and uninspiring, with its true flavors remaining elusive.

To ensure their wine hits that sweet spot, savvy winemakers employ pH testers like the Apera to measure acidity levels meticulously. A word of caution, though - wines destined for malolactic fermentation, such as reds and sparklings, should not have additional malic acid added. This is because malic acid will convert to lactic acid during the fermentation process.

Now, let's delve into the specific types of wines that can benefit from the addition of malic acid. These include:
  • Most reds
  • Rieslings
  • Gewurztraminer
  • Muscat
Timing is everything when adding malic acid to wine. It can be incorporated before or after the primary fermentation process and during any blending or aging periods. However, keep in mind that an increase in acidity will be more noticeable to the drinker.

As for the quantity of malic acid to add, a general rule of thumb is that 3.4 grams per gallon of wine will adjust the acidity by +0.1%. It's worth noting that malic acid tends to lower pH levels less than tartaric acid, making it the preferred choice for some winemakers.

Let's take a moment to explore the fascinating process of malolactic fermentation. This chemical reaction sees the naturally occurring malic acid in grapes transformed into lactic acid by lactic acid bacteria. Common in the production of most red wines and some white varieties, such as Chardonnay, this secondary fermentation usually follows the primary fermentation phase. The result is a wine with a rich, rounded 'mouth feel' that is sure to delight the palate.

malic acid levels



For those curious about how beer makers tackle the challenges of bitterness and pH levels, gypsum salt and calcium chloride are the ingredients of choice. And for the adventurous homebrewers out there experimenting with fruit juice-based hooch, malic acid can be your secret weapon to achieving that perfect balance.

Now if you've mastered the pH of your wine, why not make a tipple featuring cherries?
Powered by Blogger.
Back to Top