Day 11 Nuts and Seeds Cocoa and Chocolate Products

1. Day 11Nuts and SeedsCocoa and Chocolate Products

2. Tree nut Legume Seed Shelled Blanched Anaphylactic shock Nut butter Nut paste Nut flour Gianduja Hulled (dehulled) ALA omega-3 Words, Phrases, and Concepts

3. Introduction Most nuts grow on trees. • Examples of tree nuts: Almonds, cashews, hazelnuts, macadamias, pine nuts, pecans, pistachios, walnuts. Peanuts grow underground. • Are classified as legumes. • Like beans, peas, and other legumes, are contained in pods. Seeds are smaller than nuts and are not contained in hard shells. • Examples: Sesame, poppy, sunflower.

4. Introduction Nuts provide: • Flavor. • Especially when toasted. • Texture. • Crunchy when toasted. • Visual appeal. • Nutrients and health benefits. Most nuts and seeds are interchangeable. • Chestnuts are the exception.

5. Composition Nuts are encased in hard shells. • Shelled nut: nut removed from shell. • Sometimes called kernel or nutmeat. Thin skin (seed coat) protects kernel. • Skin is brown, astringent, and healthful. • Darker skin has stronger flavor. • Blanched nut: nut with skin removed after boiled in hot water or toasted.

6. Composition Nuts are a good source of: • Protein, vitamins, minerals. • Because they contain the plant’s embryo. • Healthful fiber and polyphenolic compounds. • Especially in the skin. Nut are high in fats and oils. • 50-65% is typical range. • Exceptions: macadamia nuts, chestnuts. • Fatty acids are mostly healthful unsaturated. • Exception: coconuts are high in saturated fat.

7. Composition

8. Composition Some people are allergic to one or more nuts or to sesame seeds. • Reaction can be mild or severe. • Mild symptoms include red rash, swelling around mouth, nausea, runny nose, itchy eyes. • Severe reaction is called anaphylactic shock. • Symptoms include shock and swelling of air passages. • Can lead to death, sometimes within minutes. • Be sure to inform customers of the presence of nuts in an item. • Also, garnish top of product with nut, as a visual cue.

9. Cost Nuts are expensive; price depends on: • Type of nut. • Pine nuts and macadamia nuts are most expensive, peanuts least expensive. • Difficulty in processing. • Walnut halves are difficult to remove intact from shells; more expensive than broken pieces. • Crop year • Weather affects crop size of natural agricultural products like nuts. • Type of packaging and size of purchase.

10. Cost Visual impact changes with size and shape. • Get greater coverage and visual impact when nut or seed is: • Lighter, less dense. • Thinly sliced. • This affects consumer’s perceived value of product.

11. Cost Which appears to have more almonds: • thinly sliced on left or slivered on right?

12. Nut Butters, Flours, and Pastes Nut butter: • Does not contain butter. • Often called nut paste when sugar is added. • Made by grinding toasted nuts until smooth. • Use food processor; can add oil, salt, syrup. • Most common nut butters: peanut and almond. Nut flour: • Also made in food processor. • To prevent release of oils and formation of paste: • Pulse food processor. • Chill nuts • Add granulated sugar.- measure amount if used • Use in pastry doughs and flourless cake batters.

13. Common Nuts, Kernels, Seeds Almonds • Bitter almonds. • Used for flavoring only. • In almond extract, amaretto liqueur, almond paste. • Sweet almonds. • Most common nut in bakeshop. • California is larger producer. • Mild-flavored, but toasting develops flavor. • Natural (with brown skin) or blanched (skin removed). • Brown skin provides color contrast, slight astringency. • Almond paste: Blanched almonds finely ground to paste with sugar, flavored with almond extract. • Marzipan: Almond paste and sugar, mixed into a pliable dough.

14. Common Nuts, Kernels, Seeds Cashews • Kidney-shaped ivory-white nut; mild and sweet. • Produced in Vietnam, Brazil, India, and other tropical climates. • Traditionally eaten as a snack. • Use in confections, especially brittles, and baked goods, such as cookies, is growing. • Difficult to remove from shell, so historically an expensive nut. • Low labor costs in Vietnam and other producing countries has kept prices down. • Cashews soaked in water and blended into smooth cream can be used as a mild-tasting replacement for dairy cream in vegan products.

15. Common Nuts, Kernels, Seeds Chestnuts • Very low in oil, high in moisture and starch. • Not interchangeable with other nuts. • Cooked before use; have a soft, mealy texture. • Fresh chestnuts available fall and early winter only. • Purchase frozen or canned, whole or pureed. • Refrigerate after opening, to prevent mold growth. • Also available dried, ground, or candied (marrons glacés).

16. Common Nuts, Kernels, Seeds Coconuts • Grows in tropics; very high in saturated fat. • Sold in many forms, cut to various sizes. • Finely-cut flakes are referred to as macaroon coconut. • Desiccated/dried coconut. • Concentrated source of coconut flavor. • Water reduced from 50% to 5%; longer shelf life. • Sweetened coconut. • Cooked with sugar before drying. • Often contains additives to keep it soft and white. • Coconut water: clear liquid from center of coconut. • Coconut milk. • Grated coconut mixed in hot water and squeezed through a filter, such as cheesecloth.

17. Common Nuts, Kernels, Seeds Hazelnuts • Also called filberts. • Grown in Mediterranean region and in Oregon. • Popular in Europe. • Often paired with chocolate. • Gianduja: hazelnuts and chocolate ground to a smooth paste. • As with almonds, • Come whole, diced, or sliced. • With or without skins. • Toasting develops flavor.

18. Common Nuts, Kernels, Seeds Macadamia nuts • Native to Australia; widely grown in Hawaii. • Highest in oil of all common nuts. • One of the most expensive nuts: • Because shell is hard to crack. • Use sparingly in baked goods, and only those with upscale image and higher price.

19. Common Nuts, Kernels, Seeds Peanuts • As a legume, higher in protein than tree nuts. • Grown and used more in North and South America than Europe. • One of the most inexpensive nuts. • Toast before use, to develop flavor and remove raw beany flavor. • Often paired with chocolate.

20. Common Nuts, Kernels, Seeds Pecans • Native to North America. • Fancy pecan halves are more expensive than pieces. • Traditional uses: pecan pie, Southern pralines, butter pecan ice cream. Pine Nuts • Small mild-tasting cream-colored seeds. • Also called pignoli or piñon nuts. • From the pine cone of a low-growing pine tree. • Traditionally used in Mexico, in Italy, and in other Mediterranean and Middle Eastern countries.

21. Common Nuts, Kernels, Seeds Pistachios • Small green-colored nut. • Native to the Middle East, but widely grown in California. • Traditionally a snack nut in North America. • Leave untoasted or only lightly toast, to preserve delicate green color and distinctive flavor. • Common uses: ice cream, biscotti, baklava, garnish on cannoli.

22. Common Nuts, Kernels, Seeds Sesame Seeds • First cultivated in India thousands of years ago. • Ancient flavor in Asia, Middle East, Mediterranean. • Tiny tear-shaped seeds that grow in pods. • Mild creamy-colored white seeds are most common. • Black and other colors available. • Seeds protected in thin, edible hulls. • Natural seeds: sold in hull. • Hulled (or dehulled) seeds: hull removed; more common. • Used as garnish on breads, bagels, crackers, cookies. • Seeds toast during baking; develop flavor and crunch. • Benne wafers: thin crisp sesame seed cookies in Southern U.S. • Can be an allergen in a small number of individuals.

23. Common Nuts, Kernels, Seeds Walnuts (English or Persian) • Originated in Iran; California is largest producer. • Fancy walnut halves are more expensive than pieces. • Strong flavor; not always toasted before use. • Darker nuts have stronger, more astringent flavor. • Highest of nuts in healthful ALA omega-3 fatty acids. • Commonly used in brownies, quick breads, cookies, coffee cakes. Black walnuts are native to North America. • Strong-flavored and expensive (hard to remove from shell). • Used in black walnut ice cream.

24. Toasting Nuts Nuts are toasted to: • Develop flavor from Maillard browning and other chemical reactions. • Improve flavor of slightly stale nuts. • Darken color. • Crisp texture. To toast nuts: • Spread in single layer on sheet pan. • Toast in oven at 325–350ºF (160–175ºC) for 5-10 minutes or longer.

25. Storage and Handling Shelf life of most nuts: • Limited by oxidative rancidity of oils. • Nuts take on unpleasant rancid or stale aroma; become less sweet, more bitter. • Exception: fresh chestnuts and fresh coconuts are high in moisture; get microbial growth. • Can be predicted by looking at the amount of polyunsaturated fatty acids in each nut. • The more polyunsaturated fatty acids, the more easily the nut’s oils will oxidize and the shorter its shelf life.

26. Storage and Handling Which nut would you predict will turn rancid fastest and have the shortest shelf life?

27. Storage and Handling To minimize oxidative rancidity in nuts: • Limit purchase to 2–3 months’ supply. • Practice FIFO: first in, first out. • Keep nuts whole until ready to use. • Toast nuts just before use. • Store nuts at low temperatures. • Cover, to keep out light and moisture. • Also keeps out insects, rodents, and strong odors. • Can purchase nuts in vacuum packaging or with added antioxidants.

28. Cacao Cocoa beans Nibs Forastero, criollo, trinitario Cocoa solids nonfat Cocoa product Chocolate product Chocolate liquor Cocoa mass (cacaomasse) Natural cocoa Dutched (alkalized) cocoa Cocoa butter Conching Couverture Cocoa solids confectionery coating Fat bloom Tempering Beta (Form V) crystals Polymorphic Sugar bloom Words, Phrases, and Concepts

29. Introduction Cocoa beans • Also called cacao beans. • Are the beans, or seeds, of cacao tree. • Grow in hard pods. • Edible part of bean is called the nib. • Source of chocolate and cocoa.

30. Cocoa Beans Three main types, often blended together: • Forastero; over 90 percent of cocoa beans. • Considered “basic” or “bulk” beans. • Dark in color; strong bitter taste. • Hardy; easiest to grow. • Criollo; less than 2 percent of crop; expensive. • Considered “fine,” “flavor,” or “noble” beans. • Light in color; complex fruity aroma. • Not very hardy; difficult to grow. • Trinitario; less than 5 percent of crop. • Cross between forastero and criollo.

31. Cocoa Beans Makeup: consists of • Cocoa butter (50-55%). • Cocoa solids nonfat: everything else that is solid. • Proteins • Carbohydrates: starches, dietary fiber – cellulose and gums, etc. • Small amounts of: • Acid; can react with baking soda for leavening. • Color and flavor. • Vitamins and minerals (ash). • Caffeine and theobromine; stimulants. • Polyphenolic compounds; good for health.

32. Cocoa and Chocolate Products Cocoa products are unsweetened. • Cocoa nibs. • Chocolate liquor. • Cocoa powder. • Cocoa butter. Chocolate products are sweetened. • Bittersweet dark chocolate and couvertures. • Milk chocolate and couvertures. • White chocolate and couvertures. Confectionary coatings. • Low-cost; contain cocoa, vegetable fats, sugar.

33. Cocoa and Chocolate Products • Cocoa and chocolate products are defined by law. • Definitions vary from one country to the next. • Minimizes, but does not eliminate, variation between brands. • Chocolate industry consists of: • Small operations run by skilled craftsmen, and • Large operations able to consistently manufacture moderately-priced products.

34. Cocoa nibs Edible part of the bean; can be purchased as small roasted pieces. Like chopped nuts. Makeup: same as the cocoa bean. Unsweetened; strong bitter chocolate taste. Use: crunchy garnish on baked goods and confections. Cocoa Products

35. Cocoa Products Chocolate liquor and unsweetened chocolate • Made by finely grinding roasted nibs. • Similar to nut butters, e.g., peanut butter. • Unlike nut butters, it is solid, not spreadable. • Cocoa butter is a highly saturated solid fat. • Same makeup as cocoa beans: • 50-55% cocoa butter. • 45-50% cocoa solids nonfat. • NO sugar added. • Also called: cocoa mass, cacaomasse, bitter chocolate, baking chocolate.

36. Cocoa Products Chocolate liquor and unsweetened chocolate (cont.) • Sold as: • Solid blocks of about 10 pounds (5 kilograms). • Individual drops, also called coins or chips. • Use in batters and doughs of chocolate baked goods. • Can be difficult to use: melt carefully and temper into other ingredients. • Expensive compared to cocoa powder: higher in cocoa butter. • Reason to use: Has full, rich lingering chocolate flavor.

37. Cocoa Products Cocoa powder • Also called “cocoa.” • No sugar added. • Made by squeezing chocolate liquor in a large press. • Cocoa butter melts, some squeezes out. • “Presscake” is finely ground into cocoa powder. • Some flavor qualities lost with loss of cocoa butter. • Generally, less rich flavor than unsweetened chocolate. • Use in batters and doughs of baked goods. • Easy to use: • Sift with other dry ingredients; • Cream with shortening or other fat; or • Dissolve in hot liquid.

38. Cocoa Products Cocoa powder (cont.) • Categorized by: • Process: Natural or dutched. • North American consumers typically use natural cocoa. • Pastry chefs and European consumers typically use dutched. • Cocoa butter content. • Most common: • 10/12 cocoa; 10–12 percent cocoa butter, with the remaining 88–90 percent cocoa solids nonfat. • 22/24 cocoa; 22–24 percent cocoa butter; with the remaining 76–78 percent cocoa solids nonfat. • By law, American cocoa must have at least 10 percent cocoa butter; By law, European cocoa must have at least 22 percent.

39. Cocoa Products Cocoa powder is nutrient-rich

40. Cocoa Products Natural cocoa powder. • Cocoa beans not treated with alkali. • Like unsweetened chocolate, is acidic; pH between 5–6. • Sharper flavor, lighter more beige color than dutched cocoa. Dutched cocoa powder: more common in bakeshops. • Also called “cocoa processed with alkali.” • Treated with potassium carbonate or other alkali. • Treatment neutralizes natural acidity of chocolate. • Can be lightly or heavily dutched. • Has alkaline pH: typically 7–9. • Dutching alters: • Color; becomes darker and/or redder. • Flavor; is smoother, more mellow. • Solubility; disperses more easily in liquids.

41. Switching between chocolate and cocoa: 1 pound unsweetened chocolate: Equals 10 ounces 22/24 cocoa powder + 6 ounces shortening. 1 kilogram unsweetened chocolate: Equals 630 grams 22/24 cocoa powder + 370 grams shortening. Shortening often reduced by one-half. Cocoa Products

42. Cocoa Products Cocoa butter • Sold as pale yellow bars or flakes. • Filtered and deodorized, to remove cocoa particles and chocolate flavor. • Expensive. • Sold to cosmetics and confectionery industries. • Uses in bakeshop: • Thins out melted chocolate, for even coating and dipping. • Brushed onto pastry shells, to keep moist fillings from crisp crusts. • Highly saturated; resists oxidative rancidity. • Unique melting characteristics: very hard and brittle at room temperature; melts quickly at body temperature.

43. Cocoa Products Cocoa butter has a unique and pleasant mouthfeel because it melts quickly at body temperature.

44. Chocolate Products Chocolate products contain: • Chocolate liquor (unsweetened chocolate) • Or its equivalent (cocoa powder and cocoa butter). • White chocolate is the exception: has cocoa butter, no cocoa solids nonfat. • Sugar • Optional ingredients: • Dairy ingredients (milk, butter). • Vanillin, or other flavorings (natural or artificial). • Lecithin, or other emulsifiers. • Nuts. • Additional cocoa butter.

45. Chocolate Products

46. Chocolate Products • Are refined, by grinding finely and by conching. • Conching involves gentle heating, mixing, kneading. • For smooth flavor and mouthfeel, flowing consistency, shiny appearance. • Are tempered, or carefully melted and cooled. • To properly crystallize cocoa butter. • For best appearance, mouthfeel, and flavor. • Uses: creams, mousses, ganache fillings, etc. • Not commonly used in batters and doughs. • Refining is of no benefit to baked goods; adds cost. • Not directly interchangeable, pound for pound, with unsweetened chocolate.

47. Chocolate Products • Often labeled with the percent cacao solids, or cocoa solids. • Also called percent cacao, or percent cocoa. • Required by law in European Union. • Represents the combined total of all ingredients from the cocoa bean, including: • chocolate liquor. • ground cocoa nib. • cocoa powder. • cocoa butter.

48. This chocolate product consists of 38% ingredients from the cocoa bean. The remaining 62% consists of sugar and dairy ingredients, primarily. Photo by Ron Manville Chocolate Products

49. Chocolate Products Bittersweet dark chocolate • Called bittersweet or semisweet chocolate in North America. • Called dark chocolate in Europe. • If used in place of unsweetened chocolate, make adjustments for sugar. Example: For dark chocolate with 50% cocoa solids, use 2 lbs (kg) for every pound (kg) of unsweetened chocolate; reduce sugar by 1 lb (kg). Note: this is an expensive substitution.

50. Chocolate Products When used as a pound-for-pound direct replacement for unsweetened chocolate, dark chocolate, with its high sugar content, produces different results.