Regardless of which acid you use: If you react it properly it wont make your tummy feel icky. Sometimes you have to wait 2 or 3 hours for the yellow to almost disappear but if you mix exact equal amounts of A & B it usually takes less than an hour. Either way it works though because the HCL in your tummy finishes the job. Painfully none the less :-/
Regardless of which acid you use: If you react it properly it wont make your tummy feel icky. Sometimes you have to wait 2 or 3 hours for the yellow to almost disappear but if you mix exact equal amounts of A & B it usually takes less than an hour. Either way it works though because the HCL in your tummy finishes the job. Painfully none the less :-/