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| Item | Approximate pH | Item | Approximate pH | |
|---|---|---|---|---|
| Lime Juice | 2.00 - 2.35 | Cheese, Swiss Gruyere | 5.68 - 6.62 | |
| Lemon Juice | 2.00 - 2.60 | Zucchini, cooked | 5.69 - 6.10 | |
| Lime | 2.00 - 2.80 | Cream style corn, condensed | 5.70 - 5.80 | |
| Cranberry Juice, canned | 2.30 - 2.52 | Shad Roe, sauted | 5.70 - 5.90 | |
| Vinegar | 2.40 - 3.40 | Caviar, American | 5.70 - 6.00 | |
| Loganberries | 2.70 - 3.50 | Celery | 5.70 - 6.00 | |
| Chili Sauce, acidified | 2.77 - 3.70 | Escarolle | 5.70 - 6.00 | |
| Grapes, Concord | 2.80 - 3.00 | Parsley | 5.70 - 6.00 | |
| Gooseberries | 2.80 - 3.10 | Peas, canned | 5.70 - 6.00 | |
| Grapes, Niagara | 2.80 - 3.27 | Lettuce, Iceberg | 5.70 - 6.13 | |
| Plums, Blue | 2.80 - 3.40 | Sardines | 5.70 - 6.60 | |
| Raspberry Jam | 2.87 - 3.17 | Celery Knob, cooked | 5.71 - 5.85 | |
| Plums, Damson | 2.90 - 3.10 | Kippered, Herring, Marshall | 5.75 - 6.20 | |
| Grapefruit Juice, canned | 2.90 - 3.25 | Turnip, white, cooked | 5.76 - 5.85 | |
| Grapes, Seedless | 2.90 - 3.82 | Melon, Casaba | 5.78 - 6.00 | |
| Crabapple Jelly, corn | 2.93 - 3.02 | Beans, Black | 5.78 - 6.02 | |
| Pomegranate | 2.93 - 3.20 | Romaine | 5.78 - 6.06 | |
| Tamarind | 3.00 - | Squash, yellow, cooked | 5.79 - 6.00 | |
| Orange, Marmalade | 3.00 - 3.33 | Cream of Potato soup, condensed | 5.80 - | |
| Strawberry Jam | 3.00 - 3.40 | Mangoes, green | 5.80 - 6.00 | |
| Jellies, fruit | 3.00 - 3.50 | Fennel, cooked | 5.80 - 6.02 | |
| Yangsberries, frozen | 3.00 - 3.70 | Lettuce | 5.80 - 6.15 | |
| Grapefruit | 3.00 - 3.75 | Vermicelli, cooked | 5.80 - 6.50 | |
| Strawberries | 3.00 - 3.90 | Grass jelly | 5.80 - 7.20 | |
| Grapefruit, canned | 3.08 - 3.32 | Radishes, red | 5.85 - 6.05 | |
| Rhubarb | 3.10 - 3.40 | Wheatnena | 5.85 - 6.08 | |
| Apples Sauce | 3.10 - 3.60 | Salmon, fresh, boiled | 5.85 - 6.50 | |
| Red Pepper Relish | 3.10 - 3.62 | Watercress | 5.88 - 6.18 | |
| Blueberries, frozen | 3.11 - 3.22 | Carrots | 5.88 - 6.40 | |
| Blueberries, Maine | 3.12 - 3.33 | Lettuce, Boston | 5.89 - 6.05 | |
| Quince, fresh, stewed | 3.12 - 3.40 | Chicory | 5.90 - 6.05 | |
| Raspberries, frozen | 3.18 - 3.26 | Tuna Fish, canned | 5.90 - 6.20 | |
| Rhubarb, California, stewed | 3.20 - 3.34 | Milk, evaporated | 5.90 - 6.30 | |
| Muscadine (A variety of grape) | 3.20 - 3.40 | Melons, Persian | 5.90 - 6.38 | |
| Apple, baked with sugar | 3.20 - 3.55 | Mackerel, canned | 5.90 - 6.40 | |
| Cucumbers, Dill pickles | 3.20 - 3.70 | Corn, canned | 5.90 - 6.50 | |
| Pineapple | 3.20 - 4.00 | Corn | 5.90 - 7.30 | |
| Strawberries, frozen | 3.21 - 3.32 | Peas, strained | 5.91 - 6.12 | |
| Plums, Green Gage, canned | 3.22 - 3.32 | Artichokes, Jerusalem, cooked | 5.93 - 6.00 | |
| Plums, Frozen | 3.22 - 3.42 | Baby Food Soup, unstrained | 5.95 - 6.05 | |
| Raspberries | 3.22 - 3.95 | Mushroom Soup, Cream of, canned | 5.95 - 6.40 | |
| Cherries, red, Water pack | 3.25 - 3.82 | Spaghetti, cooked | 5.97 - 6.40 | |
| Mayhaw (a variety of strawberry) | 3.27 - 3.86 | Soup, Cream of Mushroom, condensed | 6.00 - 6.20 | |
| Peaches, frozen | 3.28 - 3.35 | Squash, Kubbard, cooked | 6.00 - 6.20 | |
| Apricots, Dried, stewed | 3.30 - 3.51 | Water Chestnut | 6.00 - 6.20 | |
| Pineapple Juice, canned | 3.30 - 3.60 | Mushrooms, cooked | 6.00 - 6.22 | |
| Sauerkraut | 3.30 - 3.60 | Brussels sprout | 6.00 - 6.30 | |
| Apple, eating | 3.30 - 4.00 | Chayote (mirliton), cooked | 6.00 - 6.30 | |
| Peaches | 3.30 - 4.05 | Ginseng , Korean drink | 6.00 - 6.50 | |
| Orange, Juice Florida | 3.30 - 4.15 | Octopus | 6.00 - 6.50 | |
| Orange Juice, California | 3.30 - 4.19 | Rice (all cooked), Wild | 6.00 - 6.50 | |
| Apricots | 3.30 - 4.80 | Squid | 6.00 - 6.50 | |
| Cherries, frozen | 3.32 - 3.37 | Beans, Soy | 6.00 - 6.60 | |
| Strawberries, California | 3.32 - 3.50 | Melons, Honey dew | 6.00 - 6.67 | |
| Tangerine | 3.32 - 4.48 | Asparagus | 6.00 - 6.70 | |
| Apples Juice | 3.35 - 4.00 | Mushrooms | 6.00 - 6.70 | |
| Pineapple, canned | 3.35 - 4.10 | Rice (all cooked), White | 6.00 - 6.70 | |
| Guava, canned | 3.37 - 4. 10 | Aloe Juice | 6.00 - 6.80 | |
| Huckleberries, cooked with sugar | 3.38 - 3.43 | Mussels | 6.00 - 6.85 | |
| Apricots, Canned | 3.40 - 3.78 | Olives, black | 6.00 - 7.00 | |
| Mangoes, ripe | 3.40 - 4.80 | Clams | 6.00 - 7.10 | |
| Apricots, Pureed, | 3.42 - 3.83 | Hominy, cooked | 6.00 - 7.50 | |
| Cherries, Maraschino | 3.47 - 3.52 | Olives, ripe | 6.00 -7.50 | |
| Raspberries, New Jersey | 3.50 - 3.82 | New England Clam Chowder,condensed | 6.00- | |
| Grapes, Tokyo | 3.50 - 3.84 | Asparagus, cooked | 6.03 - 6.16 | |
| Grapes, canned | 3.50 - 4.50 | Shredded Wheat | 6.05 - 6.49 | |
| Jam, fruit | 3.50 - 4.50 | Cream of Wheat, cooked | 6.06 - 6.16 | |
| Bamboo Shoots, preserved | 3.50 - 4.60 | Salmon, Red Alaska, canned | 6.07 - 6.16 | |
| Pears, Bartlett | 3.50 - 4.60 | Mackerel, Spanish, broiled | 6.07 - 6.36 | |
| Tomatoes, canned | 3.50 - 4.70 | Noodles, boiled | 6.08 - 6.50 | |
| Tomatoes, Paste | 3.50 - 4.70 | Bluefish, Boston, filet, broiled | 6.09 - 6.50 | |
| Grapes, Lady Finger | 3.51 - 3.58 | Abalone | 6.10 - 6.50 | |
| Papaya Marmalade | 3.53 - 4.00 | Flounder, boiled | 6.10 - 6.90 | |
| Peaches, cooked with sugar | 3.55 - 3.72 | Coconut milk | 6.10 - 7.00 | |
| Mustard | 3.55 - 6.00 | Cantaloupe | 6.13 - 6.58 | |
| Prune, strained | 3.58 - 3.83 | Swiss Chard, cooked | 6.17 - 6.78 | |
| Oranges, Florida "color added" | 3.60 - 3.90 | Haddock, Filet, broiled | 6.17 - 6.82 | |
| Fruit cocktail | 3.60 - 4.00 | Scallion | 6.20 - | |
| Plums, Green Gage | 3.60 - 4.30 | Soup, Cream of celery, condensed | 6.20 - | |
| Plums, Red | 3.60 - 4.30 | Trout, Sea, sauted | 6.20 - 6.33 | |
| Prune, pureed | 3.60 - 4.30 | Dates, canned | 6.20 - 6.40 | |
| Olives, green, fermented | 3.60 - 4.60 | Oatmeal, cooked | 6.20 - 6.60 | |
| Prunes, dried, stewed | 3.63 - 3.92 | Rice (all cooked), Brown | 6.20 - 6.80 | |
| Worcestershire sauce | 3.63 - 4.00 | Peas, cooked | 6.22 - 6.88 | |
| Kumquat, Florida | 3.64 - 4.25 | Corn, Golden Bantam, cooked on cob | 6.22 - 7.04 | |
| Oranges, Florida | 3.69 - 4.34 | Mackerel, King, boiled | 6.26 - 6.50 | |
| Grapes, Ribier | 3.70 - 3.80 | Puffed Rice | 6.27 - 6.40 | |
| Honey | 3.70 - 4.20 | Avocados | 6.27 - 6.58 | |
| Peaches, canned | 3.70 - 4.20 | Oyster Stew, condensed | 6.30 - | |
| Onions, pickled | 3.70 - 4.60 | Broccoli, cooked | 6.30 - 6.52 | |
| Grapes, Malaga | 3.71 - 3.78 | Spinach, frozen, cooked | 6.30 - 6.52 | |
| Apricots, Strained | 3.72 - 3.95 | Lentils, cooked | 6.30 - 6.83 | |
| Cherries, Royal Ann | 3.80 - 3.83 | Broccoli, frozen, cooked | 6.30 - 6.85 | |
| Raisins, seedless | 3.80 - 4.10 | Asparagus, frozen, cooked | 6.35 - 6.48 | |
| Coconut preserves | 3.80 - 7.00 | Kale, cooked | 6.36 - 6.80 | |
| Cherries, black, canned | 3.82 - 3.93 | Arrowroot Cruel | 6.37 - 6.87 | |
| Blackberries, Washington | 3.85 - 4.50 | Flounder, fi1et, broiled | 6.39 - 6.89 | |
| Ketchup | 3.89 - 3.92 | Porgy, broiled | 6.40 - 6.49 | |
| Vegetable Juice | 3.90 - 4.30 | Peas, frozen, cooked | 6.40 - 6.70 | |
| Plums, Yellow | 3.90 - 4.45 | Milk, cow | 6.40 - 6.80 | |
| Nectarines | 3.92 - 4.18 | Peas, dried (split yellow), cooked | 6.43 - 6.62 | |
| Prune Juice | 3.95 - 3.97 | Cereal, strained | 6.44 - 6.45 | |
| Pears, canned | 4.00 - 4.07 | Cream, 40 per cent | 6.44 - 6.80 | |
| Cherries, California | 4.01 - 4.54 | Cauliflower, cooked | 6.45 - 6.80 | |
| Pears, Sickle cooked w/sugar | 4.04 - 4.21 | Peas, dried (split green), cooked | 6.45 - 6.80 | |
| Milk, Acidophilus | 4.09 - 4.25 | Peas, Chick, Garbanzo | 6.48 - 6.80 | |
| Tomatoes, Juice | 4.10 - 4.60 | Cream, 20 per cent | 6.50 - 6.68 | |
| Cheese, Cream, Philadelphia | 4.10 - 4.79 | Bass, striped, broiled | 6.50 - 6.70 | |
| Dates, Dromedary | 4.14 - 4.88 | Crab meat | 6.50 - 7.00 | |
| Cucumbers, pickled | 4.20 - 4.60 | Shrimp | 6.50 - 7.00 | |
| Tomatoes, Puree | 4.30 - 4.47 | Bass, sea, broiled | 6.58 - 6.78 | |
| Artichokes, canned, acidified | 4.30 - 4.60 | Soy infant formula | 6.60 - 7.00 | |
| Beets, canned, acidified | 4.30 - 4.60 | Spinach, cooked | 6.60 - 7.18 | |
| Tomatoes | 4.30 - 4.90 | Crabmeat, cooked | 6.62 - 6.98 | |
| Tomatoes, Strained | 4.32 - 4.58 | Arrowroot Crackers | 6.63 - 6.80 | |
| Pimento, canned, acidified | 4.40 - 4.60 | Smelts, Sauted | 6.67 - 6.90 | |
| Enchalada sauce | 4.40 - 4.70 | Pollack, filet, broiled | 6.72 - 6.82 | |
| Pimiento | 4.40 - 4.90 | Lobster bisque | 6.90 - | |
| Soy Sauce | 4.40 - 5.40 | Lotus Root | 6.90 - | |
| Buttermilk | 4.41 - 4.83 | Sauce, Shrimp | 7.01 - 7.27 | |
| Tomatoes, Wine ripened | 4.42 - 4.65 | Lobster, cooked | 7.10 - 7.43 | |
| Persimmons | 4.42 - 4.70 | Graham Crackers | 7.10 - 7.92 | |
| Herring, Pickled | 4.50 - 5.00 | Bird's nest soup | 7.20 - 7.60 | |
| Bananas | 4.50 - 5.20 | Corn, frozen, cooked | 7.33 - 7.68 | |
| Mangostine ? | 4.50 -5.00 | Conch | 7.52 - 8.40 | |
| Carrots, pureed | 4.55 - 5.80 | Grenadine Syrup | 2.31 | |
| Bananas, red | 4.58 - 4.75 | Gelatin Dessert | 2.6 | |
| Curry Paste,acidified | 4.60 - 4.80 | Mint Jelly | 3.01 | |
| Peppers | 4.65 - 5.45 | Vinegar, cider | 3.1 | |
| Lychee | 4.70 - 5.01 | Apples, Jonathan | 3.33 | |
| Milk, Sour, fine curd | 4.70 - 5.65 | Apples, McIntosh | 3.34 | |
| Cheese, Cottage | 4.75 - 5.02 | Sherry-wine | 3.37 | |
| Asparagus, strained | 4.80 - 5.09 | Rhubarb, Canned | 3.4 | |
| Jackfruit | 4.80 - 6.80 | Plum Nectar | 3.45 | |
| Zwiebach | 4.84 - 4.94 | Apples, Winesap | 3.47 | |
| Corn Flakes | 4.90 - 5.38 | Apples, Golden Delicious | 3.6 | |
| Molasses | 4.90 - 5.40 | Plums, spiced | 3.64 | |
| Pumpkin | 4.90 - 5.50 | Sherbet, raspberry | 3.69 | |
| Beets, canned | 4.90 - 5.80 | Quince Jelly | 3.7 | |
| Peas, pureed | 4.90 - 5.85 | Guava Jelly | 3.73 | |
| Figs, canned | 4.92 - 5.00 | Apricots, Nectar | 3.78 | |
| Sauce, Fish | 4.93 - 5.02 | Tomatillo (resembling Cherry tomatoes) | 3.83 | |
| Vegetable soup, chopped | 4.98 - 5.02 | Apples, Delicious | 3.9 | |
| Vegetable soup, strained | 4.99 - 5.00 | Pear Nectar | 4.03 | |
| Wheat Krispice | 4.99 - 5.62 | Taro syrup | 4.5 | |
| Abalone mushroom | 5.00 - | Maple syrup, light (Acidified) | 4.6 | |
| Wheaties | 5.00 - 5.12 | Tomato Soup, Cream of, canned | 4.62 | |
| Banana, yellow | 5.00 - 5.29 | Cactus | 4.7 | |
| Asparagus, canned | 5.00 - 6.00 | Honey Aloe | 4.7 | |
| Oyster mushrooms | 5.00 - 6.00 | Basil pesto | 4.9 | |
| Bread, white | 5.00 - 6.20 | Rambutan (Thailand) | 4.9 | |
| Shrimp Paste | 5.00 - 6.77 | Straw mushroom | 4.9 | |
| Greens, Mixed, chopped | 5.05 - 5.22 | Cheese, American, mild | 4.98 | |
| Beans, Boston style | 5.05 - 5.42 | Nata De Coco | 5 | |
| Figs, Calamyrna | 5.05 - 5.98 | Satay sauce | 5 | |
| Melba Toast | 5.08 - 5.30 | Loquat (May be acidified to pH 3.8) | 5.1 | |
| Carrots, strained | 5.10 - 5.10 | Potatoes, Mashed | 5.1 | |
| Pickles, fresh pack | 5.10 - 5.40 | Maple syrup | 5.15 | |
| Beans, pork & tomato sauce, canned | 5.10 - 5.80 | Vegetable soup, canned | 5.16 | |
| Cheese, Roquefort | 5.10 - 5.98 | Milkfish | 5.3 | |
| Bamboo Shoots + | 5.10 - 6.20 | Beans, vegetarian, tomato sauce, canned | 5.32 | |
| Macaroni, cooked | 5.10 - 6.41 | Breadfruit, cooked | 5.33 | |
| Cucumbers | 5.12 - 5.78 | Horseradish, freshly ground | 5.35 | |
| Carrots, canned | 5.18 - 5.22 | Cheese, Edem | 5.4 | |
| Cheese, Snippy | 5.18 - 5.2l | Soup, Minestronen condensed | 5.4 | |
| Watermelon | 5.18 - 5.60 | Three-Bean Salad | 5.4 | |
| Squash, acorn, cooked | 5.18 - 6.49 | Walnuts, English | 5.42 | |
| Barley, cooked | 5.19 - 5.32 | Ackees | 5.5 | |
| Baby corn | 5.20 - | Guava nectar | 5.5 | |
| Jujube | 5.20 - | Red Ginseng | 5.5 | |
| Rattan, Thailand | 5.20 - | Anchovies, stuffed w/capers, in olive oil | 5.58 | |
| Cheese, Parmesan | 5.20 - 5.30 | Beans, String | 5.6 | |
| Asparagus, green, canned | 5.20 - 5.32 | Cauliflower | 5.6 | |
| Bread, Rye | 5.20 - 5.90 | Four bean salad | 5.6 | |
| Peppers, green | 5.20 - 5.93 | Yeast | 5.65 | |
| Broccoli, canned | 5.20 - 6.00 | Cheese, Stilton | 5.7 | |
| Papaya | 5.20 - 6.00 | Hearts of Palm | 5.7 | |
| Chives | 5.20 - 6.31 | Lobster soup | 5.7 | |
| Cabbage | 5.20 - 6.80 | Matzos | 5.7 | |
| Greens, Mixed, strained | 5.22 - 5.30 | Pea Soup, Cream of, Canned | 5.7 | |
| Beets, cooked | 5.23 - 6.50 | Pork & Beans, rts. | 5.7 | |
| Puffed Wheat | 5.26 - 5.77 | Potatoes, Tubers | 5.7 | |
| Turnips | 5.29 - 5.90 | Calamary (Squid) | 5.8 | |
| Carrots, chopped | 5.30 - 5.56 | Cheese Dip | 5.8 | |
| Potatoes, Sweet | 5.30 - 5.60 | Garlic | 5.8 | |
| Sweet Potatoes | 5.30 - 5.60 | Lentil Soup | 5.8 | |
| Beans, Wax | 5.30 - 5.70 | Soup, Chicken Broth, rts. | 5.8 | |
| Parsnip | 5.30 - 5.70 | Cream of shrimp soup, condensed | 5.8 | |
| Shallots, cooked | 5.30 - 5.70 | Beans, refried | 5.9 | |
| Onions, red | 5.30 - 5.80 | Cheese, Cheddar | 5.9 | |
| Codfish, boiled | 5.30 - 6.10 | Pate | 5.9 | |
| Truffle | 5.30 - 6.50 | Potato Soup | 5.9 | |
| Beets | 5.30 - 6.60 | Scotch Broth. | 5.92 | |
| Beets, chopped | 5.32 - 5.56 | Capers | 6 | |
| Beets, strained | 5.32 - 5.56 | Carp | 6 | |
| Onions, yellow | 5.32 - 5.60 | Cream of Potato soup | 6 | |
| Shredded Ralston | 5.32 - 5.60 | Curry sauce | 6 | |
| Salmon, fresh, broiled | 5.36 - 6.40 | Oyster, smoked | 6 | |
| Onion white | 5.37 - 5.85 | Razor shell (sea asparagus) | 6 | |
| Celery, cooked | 5.37 - 5.92 | Scallop | 6 | |
| Spinach, chopped | 5.38 - 5.52 | Sea Snail (Top shell) | 6 | |
| Bread, pumpernickel | 5.40 - | Gelatin, plain jell | 6.08 | |
| Rice Krispies | 5.40 - 5.73 | Aloe vera | 6.1 | |
| Potatoes | 5.40 - 5.90 | Asparagus, Stalks | 6.1 | |
| Beans, Kidney | 5.40 - 6.00 | Cream of Asparagus | 6.1 | |
| Turnip, greens, cooked | 5.40 - 6.20 | Egg Yolk | 6.1 | |
| Sardine, Portuguese, in olive oil | 5.42 - 5.93 | Herring | 6.1 | |
| Bread, Cracked wheat | 5.43 - 5.50 | Cheese, Old English | 6.15 | |
| Parsnips, cooked | 5.45 - 5.65 | Cabbage, White | 6.2 | |
| Bran, Flakes | 5.45 - 5.67 | Cod liver | 6.2 | |
| Rolls, white | 5.46 - 5.52 | Eell | 6.2 | |
| Bread, whole wheat | 5.47 - 5.85 | Razor Clams | 6.2 | |
| Fennel (Anise) | 5.48 - 5.88 | Sturgeon | 6.2 | |
| Leeks, cooked | 5.49 - 6.10 | Junket type Dessert:: Raspberry | 6.27 | |
| Sauce, Enchilada | 5.50 - | Peanut Butter | 6.28 | |
| Tomato Rice Soup, condensed | 5.50 - | Cabbage, Savoy | 6.3 | |
| Artichokes | 5.50 - 6.00 | Cuttlefish | 6.3 | |
| Leeks | 5.50 - 6.17 | Kelp | 6.3 | |
| Spinach, pureed | 5.50 - 6.22 | Milk, condensed | 6.33 | |
| Eggplant | 5.50 - 6.50 | Clam Chowder, New England | 6.4 | |
| Okra, cooked | 5.50 - 6.60 | Congee | 6.4 | |
| Cabbage, Green | 5.50 - 6.75 | Milk, Goat's | 6.48 | |
| Spinach | 5.50 - 6.80 | Junket type Dessert:: Vanilla | 6.49 | |
| Yams, cooked | 5.50 - 6.81 | Anchovies | 6.5 | |
| Coconut, fresh | 5.50 - 7.80 | Beans, Lima | 6.5 | |
| Cream of Coconut, canned | 5.51 - 5.87 | Chrysanthemum drink | 6.5 | |
| Radishes, white | 5.52 - 5.69 | Bread, Boston, brown | 6.53 | |
| Squash, white, cooked | 5.52 - 5.80 | Eggs, new-laid, whole | 6.58 | |
| Turnip, yellow, cooked | 5.57 - 5.82 | Asparagus, Buds | 6.7 | |
| Carrots, cooked | 5.58 - 6.03 | Palm, heart of | 6.7 | |
| Bran, All Bran | 5.59 - 6.19 | Corn Soup, condensed | 6.8 | |
| Antipesto | 5.60 - | Soybean milk | 7 | |
| Soup, Broccoli Cheese, condensed | 5.60 - | Milk, peptonized | 7.1 | |
| Ginger | 5.60 - 5.90 | Soy bean curd (tofu) | 7.2 | |
| Artichokes, French, cooked | 5.60 - 6.00 | Tea | 7.2 | |
| Cabbage, Red | 5.60 - 6.00 | Tofu (soybean Curd) | 7.2 | |
| Beans | 5.60 - 6.50 | Wax gourd drink | 7.2 | |
| Spinach, strained | 5.63 - 5.79 | Cheese, Camembert | 7.44 | |
| Soda Crackers | 5.65 - 7.32 | Peanut Soup | 7.5 | |
| Oysters | 5.68 - 6.17 | Egg White | 7.96 |
