why my bathbomb remain powder bottom of my bathtub?

[dajaung1]

Hello, I made my bathbomb last week.

This is my entire recipe.

baking powder 100g
citric acid 50g
Constach 20g
rice powder 30g (my special indigrent.)
gliceryn 4g
grape seed oil 2g
rosebath powder 2g
Fragrance oil 3g

but, someday, my bathbomb start remain powder bottom of my bathtub.

exactly same recipe, but someday...start remain powder.
this powder, never melt water at all. and little soggy...:shark:

Have anyone ever like this experience??

 

[shunt2011]

I'm thinking it's likely the cornstarch & rice powder settling in the bottom of the tub. That's a lot of starch/powder. Not sure what rosebath powder is.

 

[lsg]

That was my thought, too. Together, you have as much cornstarch and rice powder as you do citric acid.

 

[cmzaha]

I agree with the above. I have had oat flour settle on the bottom of the tub

 

[dajaung1]

thx so much