I don’t think the imprecision one gets from using teaspoons add opposed to scales matters much in the end. there’s already enough error in the pH prediction, for example. And I doubt that one can taste the difference between 100 and 130 ppm sulfate.
Scales break. When mine broke I was glad to know the per tsp won’t for the salts. should a brewer delay brewing just b/c the scale had not arrived yet?
Ok so I bought a $8 scale that measures to the tenth of a gram and can now mass my salts. I’ll also measure out 3 or 4 times a tsp. of various salts, average and record it for the future if my scale breaks. Thanks, this discussion has helped me understand measuring salts better. Let’s hope it makes better beer too!