On Mon, 12 Jan 2015 21:29:16 -0800, isw > wrote:

>In article >,
> Tony Hwang > wrote:
>
>> Whitney Ryan wrote:
>> > Where can one buy food grade cornstarch &
>> > calcium phosphate?
>> >
>> > I bought a ton of Baking Soda at Costco
>> > (sodium bicarbonate), and I want to make
>> > a small amount of baking powder.
>> >
>> > Baking powder, as far as I can tell, is
>> > baking soda + cornstarch + "cream of tartar"
>> > which is usually either calcium phosphate
>> > or potassium hydrogen tartrate (KC4H5O6).
>> >
>> > I went to Safeway, Trader Joes, and Whole
>> > Foods, but none had the missing ingredients,
>> > only one of which is required (the cornstarch
>> > is optional but the acid tartrate is not.
>> >
>> > Where can one buy food grade cornstarch &
>> > calcium phosphate?
>> >
>> > Cream of Tartar
>> >
>> Hi,
>> Just buy Aluminum free baking power or yeast from a health food store.
>> No messing around making your own.
>
>Just curious -- what is the problem with aluminum in baking powder?
>
>Isaac

Just curious. OP, why do you want to make your own baking powder when
they sell it at the grorcery store?