Cream of tartar

Definition and stakes

Portrait of Maria Parloa Maria Parloa Miss Parloa's New Cook Book

Cream of tartar is expensive, soda cheap. If one prefers to use baking powders there will be no need of cream of tartar, but the soda will still be required for gingerbread and brown bread, and to use with sour milk, etc. The advantage of baking powder is that it is prepared by chemists who know just the proportion of soda to use with the acid (which should be cream of tartar) , and the result will be invariable if the cook is exact in measuring the other ingredients. When an inexperienced cook uses the soda and cream of tartar there is apt to be a little too much of one or the other.
Source: Gutenberg

Anthony Florian Madinger Willich Domestic Encyclopædia (1802)

In general, however, small doses of cream of tartar, namely, half a dram, six or eight times a-day; and from six to ten grains of salt-petre, with three or four grains of powdered squill, every morning and evening, may be taken without risk, if professional assistance cannot be easily obtained.—All other drugs, for instance, bark, tartar emetic, camphor, opium, &c. are powerful remedies, which ought to be prescribed by those only who possess the ability of ascertaining the nature and cause of the dicease.
Source: Wikisource

Jesse P. Battershall Food Adulteration and Its Detection

The quantity of sulphuric acid obtained is calculated to gypsum, any excess of lime left being returned as tartrate. The ash in pure cream of tartar should amount to 36·79 per cent., while that of calcium tartrate [102] is only 21·54 per cent. Naturally, the addition of flour or starch would materially decrease the proportion of ash. The presence of these latter adulterants is recognised by means of the microscope, and by testing the sample with iodine solution. It is generally required that cream of tartar should contain at least 90 per cent. of potassium bitartrate.
Source: Gutenberg

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