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Fine-tuning acidity is one of the most effective ways to improve the flavour, balance, freshness, and stability of homemade wine. Our collection of wine acids, pH testing supplies, and acidity adjustment products includes everything you need to increase acidity, reduce excess acidity, measure pH and titratable acidity, and prepare wine for ageing or bottling.
Not sure which acid to use? Read our Complete Guide to Wine Acids for a detailed comparison of tartaric, malic, citric, lactic, acid blend, and phosphoric acid, including their flavour profiles, best uses, stability, and effects on wine balance.
Shop acid blend, tartaric acid, citric acid, malic acid, lactic acid, phosphoric acid, potassium bicarbonate, calcium carbonate, pH testers, acid test kits, pH test strips, sodium hydroxide reagents, and other products trusted by home winemakers across Canada.
Everything You Need for Wine Acidity Adjustments
Increase Wine Acidity
Boost freshness and structure using tartaric acid, malic acid, citric acid, lactic acid, or acid blend depending on your wine style, fruit, fermentation plan, and desired flavour profile.
Reduce Excess Acidity
If your wine tastes overly tart or sharp, potassium bicarbonate and calcium carbonate can help reduce acidity and create a smoother, more balanced finish.
Measure pH & Acidity
Monitor wine chemistry with digital pH meters, pH test strips, acid titration kits, sodium hydroxide reagents, and calibration solutions for more accurate adjustments.
Improve Wine Balance
Proper acidity helps enhance fruit character, improve mouthfeel, support colour and ageing, strengthen sulphite effectiveness, and create wines that taste brighter and more professionally balanced.
Choosing the Right Wine Acid
Tartaric Acid
Tartaric acid is the classic choice for grape wine. It provides clean, firm, wine-like acidity and is commonly used to improve freshness, lower pH, support colour stability, and strengthen the effectiveness of sulphite protection.
Malic Acid
Malic acid creates a sharper, greener, more apple-like acidity. It is especially useful in cider, apple wine, pear wine, cranberry wine, and other fruit wines where a crisp, tart profile is desired.
Citric Acid
Citric acid contributes bright, lively, citrus-like acidity. It is commonly used in fruit wines, citrus-based beverages, mead, cider, and small finishing adjustments where extra freshness is needed.
Lactic Acid
Lactic acid produces a softer, broader, and rounder acidity than malic or citric acid. It can be useful in mead, cider, wine, and brewing applications where a gentler acid profile is preferred.
Acid Blend
Acid blend combines tartaric, malic, and citric acids. It offers a convenient, layered acidity adjustment for fruit wine, country wine, mead, and recipes that call for a general-purpose blend.
Phosphoric Acid
Phosphoric acid is primarily used for brewing-water, mash, and sparge-water pH adjustment. It is not normally the first choice for flavour adjustment in wine, but it is useful when controlled pH reduction is required in brewing.
For a complete comparison of flavour, stability, best uses, malolactic fermentation, pH, titratable acidity, bench trials, and fruit-specific recommendations, read our Complete Guide to Tartaric, Malic, Citric, Lactic, Acid Blend & Phosphoric Acid.
Frequently Asked Questions
Why is acidity important in winemaking?
Acidity affects nearly every aspect of wine, including flavour, aroma, freshness, colour stability, microbial stability, sulphite effectiveness, mouthfeel, and ageing potential. A wine with balanced acidity tastes vibrant and refreshing, while wine that is too acidic or not acidic enough can taste unbalanced.
What acid should I add to homemade wine?
Tartaric acid is generally the preferred choice for grape wine because it naturally occurs in grapes and provides clean, stable acidity. Malic acid contributes a sharper green-apple character, citric acid adds bright citrus-like freshness, lactic acid creates a softer and rounder profile, and acid blend combines several acids for convenient general adjustment.
What is the difference between pH and titratable acidity?
pH describes how strongly acidic the wine behaves chemically and affects microbial stability, colour, and sulphite effectiveness. Titratable acidity, or TA, measures the total amount of titratable acid and usually relates more closely to overall sourness. Both measurements are useful and should be considered alongside taste.
How do I know if my wine needs acid adjustment?
The most accurate approach is to measure both pH and titratable acidity using an acid test kit or pH meter. Taste also provides valuable clues—wine that seems flat, soft, or dull may benefit from added acidity, while overly sour or sharp wine may require acid reduction.
Can I reduce acidity after fermentation?
Yes. Potassium bicarbonate and calcium carbonate are commonly used to reduce excessive acidity in homemade wine. Always make adjustments gradually, perform a bench trial, and retest before making additional corrections.
Can I add acid after fermentation?
Yes. Post-fermentation adjustment is often useful because you can taste the finished wine and fine-tune its balance more accurately. Small bench trials are strongly recommended before treating the entire batch.
Can different wine acids be mixed?
Yes. Wine and fruit naturally contain mixtures of acids. Blending tartaric, malic, citric, or lactic acid can create a more complex sensory profile, but the choice should reflect the fruit, wine style, and whether malolactic fermentation may occur.
Related Winemaking Guides
Learn how acidity, pH, fermentation, stabilization, and wine balance work together to help you produce consistently better homemade wine.
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The Complete Guide to Wine Acids
Compare tartaric, malic, citric, lactic, acid blend, and phosphoric acid.
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Why Homemade Wine Tastes Sour
Common causes of overly acidic wine and practical ways to improve balance.
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How to Make Wine Taste Better
Simple improvements that noticeably enhance flavour and balance.
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How to Blend Wine at Home
Improve body, acidity, sweetness, strength, and overall balance.
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How to Use a Hydrometer
Measure fermentation progress, sugar levels, and alcohol potential.
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Why Some Wines Taste Harsh
Understand how acidity, tannins, alcohol, and sweetness influence mouthfeel.
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Restart Stuck Fermentation
Learn how pH, nutrition, temperature, and yeast health can affect fermentation.
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Why Shop at V&A Craft?
- Complete selection of wine acids and acidity adjustment products
- Tartaric, malic, citric, lactic, phosphoric acid, and acid blend
- Potassium bicarbonate and calcium carbonate for acid reduction
- Digital pH meters, acid test kits, reagents, strips, and calibration solutions
- Products for wine, cider, mead, fruit wine, and brewing
- Fast shipping across Canada
- Free delivery on qualifying orders over $30
- Local pickup available in the Greater Toronto Area
Whether you're correcting a wine that's too tart, adding brightness to a flat batch, measuring pH, lowering acidity, or performing precise finishing adjustments, V&A Craft has the wine acids, pH testing supplies, and acidity adjustment products you need for consistently balanced homemade wine.
For detailed guidance before choosing a product, visit our complete wine acids and acidity adjustment guide.
