Fish gelatin
water does not react with vinegar, it just changes the color
Gelatin
Pastiage is a stiff sugar paste with gelatin and vinegar.
no.
vinegar
No rock reacts to vinegar.
Just use any white vinegar. It will not discolor the transparent gelatin.
no
a permanent press fabric
Because the chemicals in a penny react with the vinegar
egg shells will most likely react with vinegar and sprite