On Wednesday, January 14, 2015 at 8:23:59 AM UTC-8, Moe DeLoughan wrote:
> "Whitney Ryan" > wrote in message
> >> ...
> >>> Where can one buy food grade cornstarch &
> >>> calcium phosphate?
>
> http://www.thespicehouse.com/spices/cream-of-tartar
>
> Cream of Tartar is also known as tartaric acid. Real cream of tartar
> is derived only from the crust on wine casks, where it has
> precipitated from the tartaric acid in the grapes.
>
> It has an astringent quality which adds a tartness to foods. To mix
> your own baking powder, combine 1/4 teaspoon baking soda with 1/2
> teaspoon cream of tartar.
>
> Very Fine Powder, in a resealable bag
>
> 1/2 cup shaker jar refill
> $3.24
>
> 4 oz.
> $3.29
>
> 8 oz.
> $6.29
>
> 16 oz.
> $11.99

Real cream of tartar is $10.95 a lb from Morebeer.com
http://www.morebeer.com/products/tartaric-acid.html