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Testing titratable acidity - or TA - is an invaluable tool when making wine, cider, or mead. The Country Wines TA test kit is an easy and affordable way to measure the amount of tartaric acid in your wine or other beverage. This TA test kit includes thorough instructions, a syringe, beaker, and enough reagents for many tests. The included reagents are a 1% phenolphthalein indicator solution and 0.1N Sodium Hydroxide - NaOH - neutralizing solution.
NOTE: For red wines, a pH meter is recommended as the indicator may be difficult to see.
While most people are familiar with the term pH when talking about acidity, fewer understand titratable acidity or the difference between pH and TA. Both involve the dueling forces of hydroxide OH- and hydrogen H+ ions. The measurement of pH reveals only the ratio of the two ions in a solution, whereas TA gives the number of hydrogen ions present in a given volume.
While pH is a very useful number to have, it isn't all that useful in determining how acidic something will taste. This is where TA comes in, titrable acidity is strongly correlated with perceived acidity. By finding the TA of your must, you can predict the perceived acidity of the final product.
The kit comes with complete instructions. You should plan to replace the Neutralizer reagent each year. Click here for a discussion of "How often does the Sodium Hydroxide Neutralizer need to be replaced?"
Optionally, you may want to use either a pH meter or litmus paper to help identify the endpoint of the titration performed during the acid test. Some people have difficulty determining the endpoint using only the color indicator method used in this test. With a pH meter, you should titrate your sample until the pH reaches 8.2. With litmus paper, you should titrate your sample until the paper does not turn red (acidic) when dipped into the sample, indicating you have achieved neutrality.
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How to Return Goods for Refund
All our supplies are guaranteed for one year. Request for refunds occurring more than 30 days after the date of purchase on non-defective goods may be granted as a store credit if the goods are returned in their original condition. Yeast is perishable and should be refrigerated on arrival. No refunds are allowed on sales of living organisms such as yeast and bacteria.
