Sugar and acid levels are two important parts to making a great batch of wine, and so any adjustments to the process are the results of those tests. As you probably already know the sugar level of your wine is incredibly important as the yeast must feed on it to create the alcohol. The amount of sugar you use will determine the amount of alcohol that is present in the final batch but in order to run these tests you will need to have a wine making hydrometer.

The hydrometer helps you to accurately test as well as measure the sugar that is in the juice and consequently the amount of alcohol that can be produced from the sugar. As a result, you might also measure the amount of sugar you’ll still need to put into the juice.
A hydrometer is comprised of a glass tube that contains a weight that will float. Sugar levels are tested by checking at what level it ultimately floats with almost all hydrometers having and it’s scale gives us an estimate for the Potential Alcohol content. You can read this scale when the process starts to let you know if you need to add additional sugar based on the amount of alcohol that you actually want in the wine.
If you determine that you need to adjust the sugar level in order to increase the alcohol level, you’re probably curious what kind of sugar is the best. It is important to remember that different types of sugar will exhibit very different characteristics. [Corn sugar and cane sugar are usually the cheapest] and the most available, though, there’s nothing to stop you from experimenting with other sugar options if you have them available.
You’ll need to do tests and maybe even adjust the acid level of your wine. Remember that maintaining the right acid level in your wine will balance out your wine and render assistance for the fermentation process as it is important to keep in mind that acidity varies from one fruit to another.
The best method of testing acidity is through a titration kit, that will help you to figure out who much acid will be present in the wine. If too much acid is present in the wine the end result will be bitter though if it doesn’t have a sufficient acid content, it’ll be flash. Through what you read,it’ll be easy for you to tell whether or not you need to adjust your acid levels.. Should you discover that you do need to change anything it’ll be easy for you to do using one of three different fruit acids: citric, tartaric and malic fruit acids.
Some ways to change the flavor the wine during bottling include blending it with other fruit based wines, incorporating spices, or oak chips, flavor enhancements. You could also fortify your wine with something such as grain alcohol or the like. The most critical rule that should be followed while making final adjustments is to make sure that you do the adjustment in meager amounts, so basically, always play with small portions rather than a full batch.