My own coffee grounds , by their self register about5.5 . Depends on what mix you mix them with and over a few weeks as to what your water is .
During the week or two that follow the grounds in a pot or the ground go right back to 7
Besides the worms have a feast ,, good also ..
A spoonful or two , gives tomatoes a better flavor (slightly) or the flowers (some of them ) a little more color
