I made wine from muscadines and gave a bottle to a friend they said that it gave them heartburn. Can you tell me what is in wine that would do that and can I make the next batch better..??
That's a heck of a note. You give a friend a personalized wine gift like a bottle of your own personal wine stock. You probably had some customized wine bottle labels made up to make the bottles look all nice and everything, only to have your friend belch and say, "It gave me heartburn."
Seriously, we don't know for sure that your friend's heartburn was caused by the wine or not. They may not have realized that is was something he ate, or it could have been the fact that they decided to guzzle the whole bottle during a single episode of Law & Order. We just don't know. I'm also noting here that you did not say it gives you heartburn.
Regardless, the only thing you can really do to help your wine--and your friend-- is to take complete control of your wine's acidity. This can easily be done with an Acid Testing Kit. Simply put, this kit will tell you how much acid is in your wine; how much acid your wine should have; and how much Acid Blend you'll need to add to the wine, if any, for proper acidity.
You take a reading with the Acid Testing Kit before the fermentation to get the wine must into the proper range. Then you also take another reading before bottling to see if a final adjustment is needed.
The Acid Testing Kit is particularly important when learning how to make white wines. By tradition white wines are typically higher in acid than reds. One has to be careful not to go over the edge, so to speak, when getting these white wines into a proper acidity range.
In short, take control of the acidity in your wine with an Acid Testing Kit, and the next time you pass out your personalized wine gifts, and you won't be passing out the heartburn.
Happy Wine Making