grape juice pH

I finally opened my last quart of grape juice from last year (mentioned previously):

https://wb9kzy.blogspot.com/2023/10/grape-juice-in-my-opinion-welchs-earns.html

Since I don't normally buy carbonated beverages I thought: why not make my own grape soda ?  Grape juice is acidic and baking soda is basic - together they form the foam of carbon dioxide, soda !

But first, let's verify that the grape juice is actually acidic using a test strip:
rinsed it looks like pH 3 or 4, acidic
 
And also verify with a Bing search:


Finally added some sugar (to mask the sour) and a little baking soda to make instant soda:
a little hard to see but foamy for sure


Not terribly exciting but novelty is always welcome !

Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm