These are historical documents, not instructions. Do not cook, drink, or apply anything on this site.
Don't Cook That

🧪 Bad Science

Mushroom tests that are coin flips, and canning methods that grow botulism.

Browse everything

28 recipes, worst first.

Sulphuric-Acid Fumigation of Tainted Meat

Meat going off? Suspend it over a bowl of salt, add two ounces of sulphuric acid by degrees, and let the fumes work. “Care must be taken not to breathe them.”

🧪 Bad Science Call poison control

Household Discoveries and Mrs. Curtis's Cook Book · 1914

Testing and Cooking Mushrooms

Try a piece of any mushroom you cannot identify; if the throat burns, “eat no more but take a copious dose of common salt, which generally neutralizes the poison.”

🧪 Bad Science Call poison control

The 20th Century Home Cook Book · 1906

Salt Test for Poisonous Mushrooms

“The best rule” for telling a deadly fungus from a safe one: salt the gills and watch the colour. Yellow, poisonous. Black, edible. It is a coin flip.

🧪 Bad Science Call poison control

Household Discoveries and Mrs. Curtis's Cook Book · 1914

Preservation of fresh meal (tainted meat)

“Tainted meet may be rendered good by pickling it in potash water for some time; before it is cooked however, it should” be dipped in vinegar. Then serve it.

🧪 Bad Science Call poison control

A New Collection of Genuine Receipts · 1831

To Can Corn (soldered tins)

Raw corn sealed in tins soldered at the kitchen table, then boiled. “Peas, string beans and Lima beans can be put up in the same way.”

🧪 Bad Science Call poison control

The Dixie Cook-Book · 1883

Mushrooms (the salt test)

“Sprinkle salt on the gills; if they turn yellow they are poisonous; if they turn black they are good.” Offered alongside a description of what a safe mushroom looks like.

🧪 Bad Science Call poison control

The 20th Century Home Cook Book · 1906

Test Pickles for Copper

Chop the pickle into ammonia and watch for deep blue — proof it was “cooked in brass or copper kettles.” A routine kitchen test, because it happened constantly.

🧪 Bad Science Big yikes

Household Discoveries and Mrs. Curtis's Cook Book · 1914

Brine That Preserves Butter' a Year

Three gallons of brine “strong enough to bear an egg,” with loaf sugar and a tablespoonful of saltpetre. Wrap the butter in muslin and sink it for a year.

🧪 Bad Science Big yikes

The Home Cook Book · 1887

Beef-Steak for Winter Use

Cut the steaks the usual thickness, layer them in a jar with salt, sugar and powdered saltpetre, and keep in “a cool, airy place, where it will not freeze.”

🧪 Bad Science Big yikes

Buckeye Cookery · 1880

Pickled Cucumbers (Gallon vinegar)

“To green the fruit: line your brass kettle with grape-leaves… and boil.” Stated as routine practice, with no comment.

🧪 Bad Science 4 books ran this Big yikes

Housekeeping in Old Virginia · 1879

Raw Marrow for the Bloodless

Marrow from “animals, freshly killed,” administered to bloodless patients “to stimulate their fresh blood formation.” The logic is that marrow makes blood, so eat marrow.

🧪 Bad Science Yikes

Meals Medicinal · 1905

Prune Whip

Stewed prunes chopped fine, folded into raw beaten egg whites, and stood on the ice. A nursery and sickroom dessert.

🧪 Bad Science Yikes

Mrs. Fryer's Loose Leaf Cook Book · 1922

A Good Relish—Uncooked

Three cups of chopped raw cabbage, onion and green pepper, a little sugar and vinegar, “place in jars and cover with parafine.” Nothing is ever cooked.

🧪 Bad Science Yikes

Libertyville Presbyterian Cook Book · 1920

Liver for Bleeding Lungs

Fresh animal liver as a food “to help against active bleeding from the lungs in consumptive disease,” three or four ounces daily — and the same liver dried and powdered as a drug.

🧪 Bad Science Yikes

Meals Medicinal · 1905

To Can Peas

Fill the jars with uncooked peas, top with cold water, stand them on straw in a wash boiler and boil three hours. Tighten the lids once cold.

🧪 Bad Science Yikes

How to Cook Vegetables · 1890

Mayonnaise Dressing

Two uncooked yolks beaten with salt and cayenne, then a quart of oil worked in drop by drop. The closing line tells you to keep it a week.

🧪 Bad Science 4 books ran this Yikes

How to Cook Vegetables · 1890

Syllabub

“Dissolve a generous teaspoon of sugar in a tablespoon of brandy. Put in a pint cup and milk into this from the cow till the foam reaches the top.” Filed under invalid cookery.

🧪 Bad Science Yikes

Good Housekeeping's Cook Book · 1909

Yellow Sauce

Yolks beaten with powdered sugar, whites beaten stiff with more sugar, combined and poured over hot pudding. No custard stage, no double boiler, no cooked syrup.

🧪 Bad Science Yikes

The Catskill Cook Book · 1911

Iced Rice Pudding

Rice boiled and drained, a quart of milk poured over, sugar beaten with two raw yolks stirred in, whites folded through, and the whole frozen.

🧪 Bad Science Yikes

Good Things to Eat and How to Prepare Them · 1907

Koumiss

Two quarts of new milk with sugar and a third of a yeast cake, stood warm ten hours, bottled — “cork the bottles tightly and tie the corks down” — and left another day.

🧪 Bad Science 5 books ran this Yikes

Mrs. Fryer's Loose Leaf Cook Book · 1922

Nectar

Tartaric acid, sugar and hot water boiled seven minutes; “when nearly cold, add the whites of four eggs, one ounce essence wintergreen. Bottle and keep cool.”

🧪 Bad Science Yikes

Twentieth Century Cook Book · 1901

Roast Turkey, with Truffles

A pound and a half of pounded truffles mixed with rasped fat bacon, stuffed into a raw turkey, which is then held forty-eight hours before roasting.

🧪 Bad Science Yikes

Housekeeping in Old Virginia · 1879

Sausage (Seven pounds of lean pork)

Seven pounds of lean pork and nearly two of fat, ground with sage, pepper and salt. “Taste, to be sure all is right.” The mixture is raw.

🧪 Bad Science Yikes

Twentieth Century Cook Book · 1901

Sweet Corn (canned)

“The following recipe for canning corn is so satisfactory that no other will be given for this article in these pages.” It is a boiling-water process.

🧪 Bad Science Yikes

Canning, Preserving and Jelly Making · 1915

Veal Chops (forcemeat-coated)

Fry the chops brown but “without actually cooking the chops,” press them cold, coat thickly with a paste of raw pork, marrow and raw egg yolk, and bake ten minutes.

🧪 Bad Science Yikes

The Story of Crisco · 1913

Broiled Beef Balls

Scrape the soft part from a piece of raw round steak, form into balls “applying no more pressure than absolutely necessary,” and cook two minutes.

🧪 Bad Science Yikes

Good Housekeeping's Cook Book · 1909

Clabbered Milk

“Stand the bottle of milk in a warm place until it is the consistency of cream. Season with a little salt, and drink in place of buttermilk.”

🧪 Bad Science Yikes

On Uncle Sam's Water Wagon · 1919

Syllabubs Under the Cow

Sugar, lemon, a pint of sherry and a glass of brandy in a punch bowl — then “take it to the dairymaid, and let her milk the cow into the bowl until it is quite full.” Stands overnight.

🧪 Bad Science Yikes

Cassell's New Dictionary of Cookery · 1912