This matter of lightness is the distinctive line between savage and civilized bread. The savage mixes simple flour and water into balls of paste, which he throws into boiling water, and which come out solid, glutinous masses, of which his common saying is, “Man eat dis, he no die,”—which a facetious traveler who was obliged to subsist on it interpreted to mean, “Dis no kill you, nothing will.” In short, it requires the stomach of a wild animal or of a savage to digest this primitive form of bread, and of course more or less attention in all civilized modes of bread making is given to producing lightness. By lightness is meant simply that the particles are to be separated from each other by little holes or air-cells; and all the different methods of making light bread are neither more nor less than the formation in bread of these air-cells.
So far as we know, there are four practicable methods of aerating bread, namely, by fermentation; by effervescence of an acid and an alkali; by aerated egg, or egg which has been filled with air by the process of beating; and, lastly, by pressure of some gaseous substance into the paste, by a process much resembling the impregnation of water in a soda fountain. All these have one and the same object,—to give us the cooked particles of our flour separated by such permanent air-cells as will enable the stomach more readily to digest them.
A very common mode of aerating bread in America is by the effervescence of an acid and an alkali in the flour. The carbonic acid gas thus formed produces minute air-cells in the bread, or, as the cook says, makes it light. When this process is performed with exact attention to chemical laws, so that the acid and alkali completely neutralize each other, leaving no overplus of either, the result is often very 160 palatable. The difficulty is, that this is a happy conjunction of circumstances which seldom occurs. The acid most commonly employed is that of sour milk, and, as milk has many degrees of sourness, the rule of a certain quantity of alkali to the pint must necessarily produce very different results at different times. As an actual fact, where this mode of making bread prevails, as we lament to say it does to a great extent in this country, one finds five cases of failure to one of success. It is a woful thing that the daughters of New England have abandoned the old respectable mode of yeast brewing and bread raising for this specious substitute, so easily made, and so seldom well made. The green, clammy, acrid substance called biscuit, which many of our worthy republicans are obliged to eat in these days, is wholly unworthy of the men and women of the Republic. Good patriots ought not to be put off in that way,—they deserve better fare.
As an occasional variety, as a household convenience for obtaining bread or biscuit at a moment’s notice, the process of effervescence may be retained; but we earnestly entreat American housekeepers, in Scriptural language, to stand in the way and ask for the old paths, and return to the good yeast-bread of their sainted grandmothers.
If acid and alkali must be used, by all means let them be mixed in due proportions. No cook should be left to guess and judge for herself about this matter. There is an article, called “Preston’s Infallible Yeast Powder,” which is made by chemical rule, and produces very perfect results. The use of this obviates the worst dangers in making bread by effervescence.
Of all processes of aeration in bread-making, the oldest and most time-honored is by fermentation. That this was known in the days of our Saviour is evident from the forcible simile in which he compares the silent permeating force of truth in human society to the very familiar household process of raising bread by a little yeast.
There is, however, one species of yeast, much used in some parts of the country, against which I have to enter my protest. It is called salt-risings, or milk-risings, and is made by mixing flour, milk, and a little salt together and leaving them to ferment. The bread thus produced is often very attractive, when new and made with great care. It is white and delicate, with fine, even air-cells. It has, however, when kept, some characteristics which remind us of the terms in which our old English Bible describes the effect of keeping the manna of the ancient Israelites, which we are informed, in words more explicit than agreeable, “stank, and bred worms.” If salt-rising bread does not fulfill the whole of this unpleasant description, it certainly does emphatically a part of it. The smell which it has in baking, and when more than a day old, suggests the inquiry whether it is the saccharine or the putrid fermentation with which it is raised. Whoever breaks a piece of it after a day or two will often see minute filaments or clammy strings drawing out from the fragments, which, with the unmistakable smell, will cause him to pause before consummating a nearer acquaintance.
The fermentation of flour by means of brewer’s or distiller’s yeast produces, if rightly managed, results far more palatable and wholesome. The only requisites for success in it are, first, good materials, and, second, great care in a few small things. There are certain low-priced or damaged kinds of flour which can never by any kind of domestic chemistry be made into good bread; and to those persons whose stomachs forbid them to eat gummy, glutinous paste, under the name of bread, there is no economy in buying these poor brands, even at half the price of good flour.
But good flour and good yeast being supposed, with a temperature favorable to the development of fermentation, the whole success of the process depends on the thorough diffusion of the proper proportion of yeast through the 162 whole mass, and on stopping the subsequent fermentation at the precise and fortunate point. The true housewife makes her bread the sovereign of her kitchen,—its behests must be attended to in all critical points and moments, no matter what else be postponed. She who attends to her bread when she has done this, and arranged that, and performed the other, very often finds that the forces of nature will not wait for her. The snowy mass, perfectly mixed, kneaded with care and strength, rises in its beautiful perfection till the moment comes for fixing the air-cells by baking. A few minutes now, and the acetous fermentation will begin, and the whole result be spoiled. Many bread-makers pass in utter carelessness over this sacred and mysterious boundary. Their oven has cake in it, or they are skimming jelly, or attending to some other of the so-called higher branches of cookery, while the bread is quickly passing into the acetous stage. At last, when they are ready to attend to it, they find that it has been going its own way,—it is so sour that the pungent smell is plainly perceptible. Now the saleratus-bottle is handed down, and a quantity of the dissolved alkali mixed with the paste,—an expedient sometimes making itself too manifest by greenish streaks or small acrid spots in the bread. As the result, we have a beautiful article spoiled,—bread without sweetness, if not absolutely sour.