Soil Test with just Vinegar and Baking soda

We enjoy gardening and we enjoy the fresh vegetables and fruit that is abundant for almost half of the year.

However, our soil is in constant need of care. In contrast to the rich river loam just down the hill from us, we have clay. Very icky and yucky  and dangerously slippery in the winter, and nearly impervious to spading in the summer. Over the years we have added sand, lots of leaves, and compost of our own making.

How can we tell, though, whether this years soil is acidic or alkyd? We can send small samples out for testing, or try the baking soda and vinegar method described here:

Here’s a link to a method that uses vinegar and baking soda.