Thanks again. I have to say I’m a little confused by the sweetness equivalencies between sugar and sucralose.
The AOAC’s recent literature review indicates that, indeed, sucralose is about 200 to 600+ times as potent as sugar (more at lower concentrations of sucrose and less so at higher ones, because they have different dose-response curves — per Fig. 2 and Table 3). But on the other hand, EZ-Sweetz’s concentrated liquid sucralose, which is a 25% solution, is advertised as 1 drop being equivalent to 2 tsp sugar, and people seem to be able to use it normally (as in, not for industrial purposes). Some of them do mention that it is too strong to sweeten only a cup of tea or coffee, though, so they dilute it.
Since I am trying to replicate EZ-Sweetz’s solution, I was thinking that I would be fine if I went with 25% or, as we discussed, 12.5%. That being said, I have more than enough sucralose powder to make batches with different concentrations and find out the one that best suits my uses (I could have one for sweetening beverages and another one for cooking).
Edit: looking at the Canderel brand (manufactured by Merisant), it seems that the following concentrations are equivalent to 1 tsp sugar (4-5 g):
0.48 mL at 1.39% (one squeeze)
0.25 mL at 3.14% (10 drops)
0.11 mL at 5.3% (2 drops). Canderel UK’s website states 0.2 mL (also 2 drops), but this probably needs updating as the label on the package says that a serving is 0.11 mL.
I figure I could measure the volume of a drop that my dropper dispenses and adjust the concentration to match the equivalent of 1/2 tsp sugar per drop.