Woman's Institute Library of Cookery Volume V Part 11

In handling the product after it has been cooked by the open-kettle method, any spoon, funnel, or other utensil must be thoroughly sterilized in the same way as the jars and their covers and rubbers; indeed, no unsterile utensil should ever be allowed to touch the food when a jar is being filled.

[Ill.u.s.tration: FIG. 22]

55. It is by the observance of such precautions as these, some of them seemingly unimportant, that the housewife will be repaid for her efforts in canning and be able to produce canned fruits and vegetables like those shown in color in Fig. 22. This ill.u.s.tration shows, with a few exceptions, such foods canned by the one-period cold-pack method, and merits close inspection. As will be observed, the jars are full and well packed and the color of each food is retained. Each can of food indicates careful work and serves to show the housewife what she may expect if she performs her work under the right conditions and in the right way. This ill.u.s.tration likewise serves to demonstrate that any food may be successfully canned by the one-period cold-pack method, a claim that cannot be made for the other canning methods. In fact, some of the foods ill.u.s.trated, as, for instance, peas and corn, cannot be canned successfully by any other method.

DIRECTIONS FOR CANNING VEGETABLES

56. CLa.s.sIFICATION OF VEGETABLES.--To simplify the directions here given for the canning of vegetables, this food is divided into four groups, as follows:

1. _Greens_, which include all wild and cultivated edible greens, such as beet greens, collards, cress, dandelion, endive, horseradish greens, kale, mustard greens, spinach, New Zealand spinach, and Swiss chard.

2. _Pod and related vegetables_, which include asparagus, beans, both string and wax, Brussels sprouts, cabbage, cauliflower, eggplant, okra, peppers, both green and ripe, summer squash, and vegetable marrow.

3. _Root and tuber vegetables_, which include beets, carrots, kohlrabi, parsnips, rutabagas, salsify, sweet potatoes, and turnips.

4. _Special vegetables_, which include beans, both Lima and sh.e.l.l, corn, mushrooms, peas, pumpkin, sauerkraut, squash, succotash and other vegetable combinations, and tomatoes.

The convenience of this plan will be readily seen when it is understood that, with the exception of the special vegetables, the same method of preparation and the time given for the various steps in the canning process apply to all vegetables of the same cla.s.s. Thus, if directions for a vegetable belonging to a certain cla.s.s are not definitely stated in the text, it may be taken for granted that this vegetable may be canned in the manner given for another vegetable of the same cla.s.s.

57. GENERAL DIRECTIONS.--The canning of vegetables may be most successfully done by the one-period cold-pack method. Tomatoes, however, because of the large quant.i.ty of acid they contain, may be canned and kept with little difficulty by the open-kettle method, but they will be found to keep their shape better if the cold-pack method is employed.

The time required for cooking any vegetable after it is packed in jars depends on the kind and the age. Therefore, if a vegetable is hard or likely to be tough, it may be necessary to increase the time given in the directions; whereas, if it is young and tender or very ripe, as in the case of tomatoes, the time for cooking may perhaps have to be decreased. Because, in alt.i.tudes higher than sea level, the boiling point of water is lower than 212 degrees Fahrenheit, the length of time for boiling foods in the water bath must be increased after an alt.i.tude of 500 feet is reached. Therefore, for every additional 500 feet over the first 500 feet, 10 per cent. should be added to the time given for the boiling in water. In case a pressure cooker is used, however, this is not necessary.

The canning directions here given are for 1-quart jars. If pint jars are to be used, decrease the salt proportionately; also, decrease the time for cooking in each case one-fifth of the time, or 20 per cent. If 2-quart jars are to be used, double the amount of salt and add to the length of time for cooking one-fifth, or 20 per cent. For instance, if a 1-quart jar of food requires 90 minutes, a pint jar of the same food would require 72 minutes and a 2-quart jar, 108 minutes.

GROUP 1--GREENS

58. In canning greens, or vegetables belonging to the first group, select those which are fresh and tender. Greens that are old and inclined to be strong and tough may require longer blanching and cooking. Look the greens over carefully, rejecting all leaves that are wilted or otherwise spoiled. Cut off the roots and drop the leaves into a pan of cold water. Wash these thoroughly a number of times, using fresh water each time, in order to remove all sand and dirt that may be clinging to them. Then proceed to blanch them for 10 to 15 minutes in steam, suspending the greens over boiling water in a piece of cheesecloth, a colander, or the top of a steamer. After blanching, dip them quickly into cold water. Then pack the greens tightly into jars and add 1 teaspoonful of salt to each jarful. No water has to be added to greens, because the leaves themselves contain sufficient water. When the jars are thus packed, adjust the covers and proceed to sterilize and cook the greens according to the directions previously given. If the water bath is to be used, boil them in it for 1-1/2 to 2 hours; but if the pressure cooker is to be employed for this purpose, cook them at a 5-pound pressure for 60 minutes or at a 10-pound pressure for 40 minutes.

GROUP 2--POD AND RELATED VEGETABLES

59. The best results in canning vegetables belonging to the second group will be derived when those which are fresh and tender are selected. As has been mentioned, the sooner vegetables are canned after they are taken from the garden, the better will be the canned product. Directions for practically all vegetables included in this group are here given.

60. ASPARAGUS.--Select tender asparagus, and proceed with the canning no later than 5 hours after it has been taken from the garden. Remove the hard portions at the ends of the stems, and cut the trimmed stems into pieces the length of the jars into which they are to be placed. If preferred, however, the asparagus may be cut into small pieces. Wash the cut asparagus thoroughly in cold water, and then sort out the uneven pieces that were cut off in making the stems even in length. These may be canned separately for soup. Lay the stems of asparagus in an orderly pile in a colander or a wire basket, cover it, and place it into a large vessel where it may be kept completely covered with boiling water for 5 minutes. Then cold-dip the asparagus quickly, and pack it neatly into the jars, keeping the tip ends up. Add 1 teaspoonful of salt to each jarful and pour boiling water into each jar until it is completely full.

Adjust the covers and proceed to sterilize and cook the jars of food.

Cook for 1-1/2 to 2 hours in the water bath, or, in the pressure cooker, cook for 60 minutes at a pressure of 5 pounds or for 40 minutes at a pressure of 10 pounds.

61. BRUSSELS SPROUTS, CABBAGE, AND CAULIFLOWER.--In canning Brussels sprouts, cabbage, or cauliflower, first prepare each vegetable as if it were to be cooked for the table. When thus made ready, blanch it with the aid of a square of cheesecloth or a colander in live steam, over boiling water, for 10 to 15 minutes. Then cold-dip it and pack it tightly into the jars. Add 1 teaspoonful of salt to each jarful and fill each jar with boiling water. Proceed next to sterilize and cook it according to the method selected. Boil for 90 minutes in the water bath; in the pressure cooker, cook for 60 minutes at a 5-pound pressure or for 40 minutes at a 10-pound pressure.

62. EGGPLANT AND SUMMER SQUASH.--Both eggplant and summer squash are canned in the same way, because the consistency of these vegetables is much alike. Select firm vegetables with no decayed spots. Blanch for 3 to 8 minutes in boiling water; cold-dip quickly; remove the skins; cut into pieces of a size that will fit into the jars; pack into the jars; and add 1 teaspoonful of salt to each jarful. Next, adjust the jar lids and proceed according to the directions given for the method selected.

In the water bath, boil for 1-1/2 hours; in the pressure cooker, cook for 60 minutes at a pressure of 5 pounds or for 40 minutes at a pressure of 10 pounds. Eggplant or summer squash so canned may be rolled in egg and crumbs and sauted or fried, the same as fresh vegetables of this kind.

63. OKRA AND GREEN PEPPERS.--Both okra and green peppers may also be canned in the same way. Prepare these vegetables for canning by was.h.i.+ng fresh, tender pods of either vegetable thoroughly. Blanch for 5 to 15 minutes in boiling water and cold-dip quickly. Pack the pods into the jars, add a teaspoonful of salt to each jarful, and fill the jars with boiling water. Adjust the lids and proceed according to directions for the method selected. In the water bath, boil for 1-1/2 to 2 hours; in the pressure cooker, cook for 60 minutes at a pressure of 5 pounds or for 40 minutes at a pressure of 10 pounds.

64. STRING BEANS.--String beans of any variety should be canned as soon as they are gathered. If the beans to be canned are not of the stringless variety, prepare them by stringing them, following the directions given in _Vegetables_, Part 1. Stringless beans should be selected if possible, to avoid this part of the work. Cut out any rusted portions, cut each end from the beans, and, if preferred, cut the beans into inch lengths. When thus prepared, blanch them for 10 to 15 minutes in live steam, cold-dip quickly, and pack tightly into the jars. Add a teaspoonful of salt to each jarful, fill the jars with boiling water, adjust the lids, and cook according to the method preferred. In the water bath, boil for 1-1/2 to 2 hours; in the pressure cooker, cook for 60 minutes at a pressure of 5 pounds or for 40 minutes at a pressure of 10 pounds.

GROUP 3--ROOT AND TUBER VEGETABLES

65. Only the small, young, and tender vegetables included in the third group lend themselves readily to canning. As a rule, such vegetables are allowed to mature, when they can be stored for winter use without canning them. However, many housewives like to can some of them for the variety they offer in the preparation and planning of meals.

66. BEETS.--For canning, select small, young beets. Prepare them by cutting off the tops, which may be cooked as greens or canned separately, and all but about an inch of the stems and an inch of the roots. Scrub the trimmed beets well, and then blanch them in boiling water for 5 to 15 minutes or until the skins may be easily sc.r.a.ped off with a knife. Plunge them quickly into cold water and draw them out again. Then sc.r.a.pe off the skins and remove the roots and stems. The roots and stems are left on during the blanching and cold-dipping to prevent them from bleeding, or losing color. When thus prepared, pack the beets into jars, add 1 teaspoonful of salt to each jarful, and fill the jars with boiling water. Then adjust the jar tops and proceed to sterilize and cook the jars of beets according to the directions for any preferred method. In the water bath, cook them for 1-1/2 hours; in the pressure cooker, cook them for 1 hour at a pressure of 5 pounds or for 40 minutes at a pressure of 10 pounds.

67. CARROTS, PARSNIPS, AND TURNIPS.--Young parsnips and turnips are canned in exactly the same way as young carrots. Therefore, directions for the canning of carrots will suffice for all three of these vegetables. Prepare the carrots for canning by cutting off the tops and the roots and scrubbing them well. Blanch them for 10 to 15 minutes in boiling water, so that the skins may be easily removed, and cold-dip them. Then remove the skins by sc.r.a.ping, pack the carrots into the jars, add 1 teaspoonful of salt to each jarful, and fill the jars with boiling water. Adjust the jar tops next, and proceed to sterilize and cook the jars of carrots according to the method selected. In the water bath, cook for 1-1/2 hours; in the pressure cooker, cook for 1 hour at a pressure of 5 pounds or for 40 minutes at a pressure of 10 pounds.

GROUP 4--SPECIAL VEGETABLES

68. Vegetables of the fourth group, which include those which cannot well be cla.s.sified in the other groups, lend themselves readily to combinations, such as succotash, that make for variety in food. As is true of the other vegetables, special vegetables must be fresh and sound if good results in canning are expected.

69. LIMA AND OTHER Sh.e.l.lED BEANS.--For canning, only tender beans, whether Lima or some other variety, should be chosen. Prepare them for immediate canning by sh.e.l.ling them--that is, taking them from the pods--blanching them for 5 to 10 minutes in boiling water, and then cold-dipping them quickly. Pack the jars to within 1/2 inch of the top, add 1 teaspoonful of salt to each jar, and fill the jars with boiling water. Adjust the covers and proceed to sterilize and cook them. In the water bath, boil for 2-1/2 to 3 hours; in the pressure cooker, cook for 1-1/2 hours at a pressure of 5 pounds or for 1 hour at a pressure of 10 pounds.

70. GREEN CORN.--For canning purposes, only corn that is young and milky should be selected. Get it ready for canning by husking it and removing the silk. Then blanch it for 3 to 5 minutes in boiling water and cold-dip it quickly. Cut the kernels half way down to the cob and sc.r.a.pe out what remains after cutting. For best results in this operation, hold the ear of corn so that the b.u.t.t end is up; then cut from the tip toward the b.u.t.t, but sc.r.a.pe from the b.u.t.t toward the tip. Next, pack the jars tightly with the corn, pressing it into them with a wooden masher.

Unless two persons can work together, however, cut only enough corn for one jar and fill and partly seal it before cutting more. As corn swells in the cooking, fill each jar to within 1/2 inch of the top. The milk in the corn should fill all s.p.a.ces between the kernels, provided there are any, but if it does not, boiling water may be poured in. Add 1 teaspoonful of salt to each jarful of corn and adjust the jar lids. Boil for 3 hours in the water bath; but, if the pressure cooker is to be used, cook for 1-1/2 hours at a pressure of 5 pounds or for 1 hour at a pressure of 10 pounds.

Corn on the cob may be canned in the same way if desired, but as only three small ears can be put into a quart jar, this would seem to be a waste of s.p.a.ce and labor. If corn on the cob is to be canned, 2-quart jars will prove more convenient than 1-quart jars.

71. PEAS.--Peas for canning should be well formed and tender, and they should be canned as soon as possible after coming from the garden.

Proceed by was.h.i.+ng the pods and sh.e.l.ling the peas. Blanch the sh.e.l.led peas for 5 to 10 minutes in live steam, and cold-dip them quickly. Pack the peas into the jars, having them come to within 1/2 inch from the top, add 1 teaspoonful of salt to each jarful, and fill the jars with boiling water. Then adjust the jar lids and proceed according to directions for the method selected. In the water bath, boil for 2 or 3 hours; in the pressure cooker, cook for 1-1/2 hours at a pressure of 5 pounds or for 1 hour at a pressure of 10 pounds.

72. PUMPKIN AND SQUASH.--The canning of pumpkin and squash is advisable when there is any possibility of their not keeping until they can be used. Prepare either of these vegetables for canning by first peeling it and cutting the edible part into inch cubes. Blanch these cubes for 10 to 15 minutes in live steam and cold-dip them quickly. Pack the jars as full as possible, and add 1 teaspoonful of salt to each jar, but no water. After adjusting the jar lids, boil the jars of food for 1-1/2 hours in the water bath, or cook them for 1 hour at a pressure of 5 pounds or for 40 minutes at a pressure of 10 pounds in the pressure cooker. When finished, the jars will be found to be only about half full, but the contents will keep perfectly.

If desired, pumpkin or squash may first be cooked as if preparing it for use and then put into the jars for processing.

73. SUCCOTASH.--Of course, succotash is not a vegetable, but the name of a food that results from combining corn and beans. These vegetables may be canned together to make for variety in the winter's food supply, or each may be canned separately and combined later. Clean the ears of corn in the manner previously directed; then blanch them for 5 minutes and cold-dip them. Also, remove green Lima beans from the pods, blanch them for 10 minutes, and cold-dip them. Then cut and sc.r.a.pe the corn off the cobs and mix it with an equal quant.i.ty of the beans. Pack the mixture into the jars to within 1/2 inch of the top, add a teaspoonful of salt to each jarful, and fill the jars with boiling water. Adjust the jar tops and proceed according to the directions for the process to be employed. In the water bath, boil for 2 hours; in the pressure cooker, cook for 50 minutes at a pressure of 5 pounds or for 35 minutes at a pressure of 10 pounds.

74. TOMATOES.--As has been stated, tomatoes may be canned successfully by the open-kettle method. If this method is to be employed, the first part of the preparation is exactly the same as for the cold-pack method, except that the jars, jar tops, and jar rubbers must be carefully sterilized.

For canning, firm tomatoes should be selected if possible, as they will keep their shape better than those which are very ripe. If some are soft, they should be sorted out and canned for soup making or made into catsup. After was.h.i.+ng the tomatoes, proceed to blanch them. The length of time required for blanching depends entirely on the condition of the tomatoes. They should be blanched for 1 to 3 minutes, or just long enough to loosen the skin. After blanching, dip them quickly into cold water and remove the skins. These, it will be found, may be removed easily and quickly. Pack the tomatoes thus prepared tightly into jars and fill them with boiling water, boiling tomato juice, or stewed tomatoes. Add a teaspoonful of salt to each jar. Then adjust the jar lids and proceed according to the directions given for the method selected. Boil for 22 minutes in the water bath; in the pressure cooker, cook for 15 minutes at a pressure of 5 pounds or for 10 minutes at a pressure of 10 pounds.

75. TOMATOES FOR SOUP.--If there are soft tomatoes at hand or if tomatoes are canned by the open-kettle method, quant.i.ties of tomato juice will be available. Such material as this may be put through a sieve and boiled down for winter use in the making of soups, bisques, etc. It may be canned simply by pouring the boiling juice into sterilized jars and sealing them immediately.

76. TOMATOES AND CORN.--An excellent food combination results from combining stewed tomatoes with corn. Such a combination may be canned safely by either the open-kettle or the cold-pack method. The acid of the tomatoes helps to keep the corn, but the combination requires longer cooking than just plain tomatoes. Prepare each vegetable as for canning separately, but, if desired, cut the tomatoes into pieces. Mix the two foods in any desirable proportion and, for the cold-pack canning method, put the food into the jars. Add 1 teaspoonful of salt to each jarful, but no water. Then adjust the jar lids, and proceed to sterilize and cook the jars of food. In the water bath, cook them 1-1/2 hours; in the pressure cooker, cook them for 50 minutes at a pressure of 5 pounds or for 35 minutes at a pressure of 10 pounds.

DIRECTIONS FOR CANNING FRUITS

77. The chief difference between the canning of fruits and the canning of vegetables is that sugar in the form of sirup, instead of salt water, is used for the liquid. Fruits may be canned without sugar if desired, but nothing is gained by so doing, for sugar will have to be added later. Because of the sugar used in canning and the acid contained in the fruit, canned fruit has better keeping qualities than canned vegetables. In fact, it is much more likely to keep well even though it does not receive such careful attention as vegetables. It is for this reason that canned fruit does not require so much time for sterilization as vegetables do. Still it should not be inferred that care is not necessary in the canning of fruits. Indeed, the more care that is taken, the better are the results likely to be.

78. SIRUPS FOR CANNING.--Before the canning of fruits can be undertaken, it is necessary to possess a knowledge of the sirups that are needed.

Such sirups consist simply of sugar dissolved in boiling water. The quant.i.ty of sugar and water required for a sirup depends on the acidity of the fruit and the purpose for which it is to be used. Plain canned fruits that are to be used for sauces, etc. require less sugar proportionately than those which are preserved, and fruit canned for pie making may have less than either. Thus, fruits of the same kind may be canned with sirups of different proportions. To a great extent, the quant.i.ty of sugar to use with fruit may be regulated by the taste, but it will be readily seen that such fruits as sour cherries and plums will require more sugar to make them palatable than pears and blueberries. It will be well to note, though, that the sugar does not penetrate the fruit unless the two are cooked together.

79. In order to make sirup for canning, place the desired quant.i.ties of sugar and water in a kettle and proceed to heat them. Stir the liquid while it is heating, in order to a.s.sist in dissolving the sugar. When it has begun to boil rapidly, remove the sirup from the fire and use it at once. Do not continue boiling.

In preparing such sirups, it will be well to note that the greater the proportion of sugar to water or the longer the sugar and water are allowed to boil, the denser, or heavier, will the sirup become. It is this _density_ of sirup that regulates its use for the different kinds of fruit and determines its nature. Thus, a sirup in which the proportion of sugar to water is so large as to make the sirup thick is known as a _heavy sirup_; one in which the proportion of water to sugar is so large as to make the sirup thin is called a _light sirup_; and one in which the proportion of sugar and water is such as to produce a sirup that is neither thick nor thin, but stands between the two extremes, is called a _medium sirup_.