The only practical problem for my son to carry out the experiment would be that the quantities are really really minute. For instance, for baking soda order of magnitude of 0.05 gr/L, and still a lot less for a cup, of course....
Solutions make that easier. Make 50g/L (or 5g/100mL) and dose with that. 1 drop from a dropper is generally 0.05mL, so that drop contains 5g/100mL * 0.05mL = 0.0025g of baking soda. You'd need 20 drops or 1mL to get 0.05g baking soda in a Liter of coffee. Proportionally less in a cup.
This is the last piece of the puzzle for me. Thanks everyone!
Topic: water analysis for coffee (Read 3756 times)
