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A composition has a gas containing agent or gas producing agent, a foam stabilizer and a food acid source. In one advantageous form, when the composition is dissolved in a liquid medium, a resulting beverage preferably has a pH between 2.5 and 5.4, and a viscosity between 1.0 and 10.0 cP when at a c

A composition has a gas containing agent or gas producing agent, a foam stabilizer and a food acid source. In one advantageous form, when the composition is dissolved in a liquid medium, a resulting beverage preferably has a pH between 2.5 and 5.4, and a viscosity between 1.0 and 10.0 cP when at a concentration between 1 and 150 grams per liter at a temperature between 2 and 28° C. In another advantageous form, the composition is water soluble in cold water, e.g., at a temperature between 2 and 28° C. In an alternative form, various components of the composition will be present in a premade liquid to which a gas containing agent or gas producing agent is added just prior to consumption.

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1. A powder composition comprising: a dry powder gas containing agent composed of amorphous particles having pressurized gas held in internal voids;a dry foam stabilizer comprising more than 50% quillaia by weight of a total weight of all foam stabilizers present in the composition; anda food acid s

1. A powder composition comprising: a dry powder gas containing agent composed of amorphous particles having pressurized gas held in internal voids;a dry foam stabilizer comprising more than 50% quillaia by weight of a total weight of all foam stabilizers present in the composition; anda food acid source,wherein, the powder composition is capable of producing foam without mechanical agitation if dissolved in a liquid. 2. The powder composition of claim 1, further comprising a flavor source. 3. The powder composition of claim 2, wherein the flavor source comprises a fruit-flavor. 4. The powder composition of claim 3, wherein the fruit flavor source produces a flavor selected from the group consisting of orange, pineapple, grape, passion fruit, and lemon. 5. The powder composition of claim 3, wherein the fruit flavor source comprises natural fruit or fruit component. 6. The powder composition of claim 2, wherein the flavor comprises a flavor source selected from the group consisting of root beer, cola and fruit-flavored carbonated beverages. 7. The powder composition of claim 1, wherein, if the composition is dissolved in a liquid medium, the resulting beverage has a pH between 2.5 and 5.4. 8. The powder composition of claim 7, wherein the resulting beverage has a pH between 2.5 and 3.5. 9. The powder composition of claim 1, wherein, if the composition is dissolved in a liquid medium, the composition produces at least 2.5 ml foam per gram of said composition on a top surface of the resulting beverage, without mechanical agitation sufficient to incorporate air into the resulting beverage. 10. The powder composition of claim 1, wherein if the composition is dissolved in a liquid, between 2.5 and 3.5 ml of foam per gram of the powder composition is produced on a resulting top surface of the resulting liquid beverage, without mechanical agitation. 11. The powder composition of claim 1, wherein the gas containing agent consists essentially of a carbohydrate. 12. The powder composition of claim 1, wherein the gas containing agent comprises a carbohydrate having entrapped pressurized gas held in internal voids, the gas containing agent capable of releasing the gas upon dissolution in a liquid. 13. The powder composition of claim 1, wherein the gas containing agent comprises maltodextrin. 14. The powder composition of claim 1, wherein the foam stabilizer further comprises soluble gelatin. 15. The powder composition of claim 1, wherein, if the composition is dissolved in a liquid, a foam will be produced on the top surface of the resulting liquid beverage without agitation of the liquid and said foam has a duration of between 15 minutes and 48 hours. 16. The powder composition of claim 1, wherein the powder composition further comprises starch. 17. The powder composition of claim 1, wherein the acid source comprises citric acid. 18. The powder composition of claim 1, wherein, in weight percent of a total amount of the gas containing agent, the foam stabilizer and the food acid, wherein the gas producing agent is present between 0.25 to 99.6 weight percent, the foam stabilizer is present between 0.025 and 81.6 weight percent, and the food acid source is present between 0.337 and 99.45 weight percent. 19. The powder composition of claim 1, further comprising an insoluble material. 20. The powder composition of claim 19, wherein, in weight percent of a total amount of the gas containing agent, the foam stabilizer and the food acid, wherein the gas producing agent is present between 0.25 to 99.6 weight percent, the foam stabilizer is present between 0.025 and 81.6 weight percent, the food acid source is present between 0.337 and 99.45 weight percent and the insoluble material is present between 0.022 to 98.84 weight percent. 21. The powder composition of claim 19, wherein the insoluble material comprises one or more hydrocolloids. 22. The powder composition of claim 19, wherein the insoluble material comprises dried pulp. 23. The powder composition of claim 19, wherein the insoluble material is composed of a material having an average particle size of between 0.1 and 850 microns. 24. The powder composition of claim 19, wherein the insoluble material is composed of a material having a maximum dimension of between 0.1 and 3000 microns. 25. The powder composition of claim 19, wherein, if the composition is dissolved in a liquid medium, the resulting beverage has a concentration of 1 to 150 g composition per liter and a viscosity of between 1.0 and 10.0 cP at a temperature between 2 and 28° C. 26. A dry powder comprising: a dry composition comprising a powder composed of the following ingredients: a dry gas containing agent composed of amorphous particles or a dry gas producing agent,dry quillaia present in an amount greater than 50% by weight of a total amount of all foam stabilizers present in the dry powder, anda food acid,wherein, if the dry composition is dissolved in a liquid medium, the resulting beverage has a pH between 2.5 and 5.4, and wherein the dry composition is capable of producing at least 2.5 ml foam per gram of said powder on a top surface of the resulting beverage, without mechanical agitation sufficient to incorporate air into the liquid. 27. The powder of claim 26, wherein the gas containing agent consists essentially of a carbohydrate. 28. The powder of claim 26, wherein the gas containing agent comprises a non-protein composition. 29. The powder of claim 26, wherein the gas containing agent comprises a carbohydrate containing entrapped pressurized gas held in internal voids. 30. The powder of claim 26, wherein the gas producing agent comprises at least one of a carbonate or a bicarbonate compound. 31. The powder of claim 26, wherein the powder further contains cold water soluble gelatin. 32. The powder of claim 26, wherein if the composition is dissolved in a liquid, a foam would be produced on a top surface of a resulting liquid beverage, the foam having a duration of between 15 minutes and 48 hours. 33. The powder of claim 26, wherein the food acid is citric acid. 34. The powder of claim 26, wherein the ingredients are in weight percent of the powder amount as follows: the gas containing agent or gas producing agent is in an amount between 0.25 to 99.6 weight percent, the foam stabilizer is present between 0.025 and 81.6 weight percent, the food acid source is present between 0.337 and 99.45 weight percent and the insoluble material is present between 0.022 to 98.84 weight percent. 35. The powder of claim 26, further comprising an insoluble material. 36. The powder of claim 35, wherein, in weight percent of a total composition amount, the insoluble material is present between 0.022 to 98.84 weight percent. 37. The powder of claim 35, wherein the insoluble material comprises one or more hydrocolloids. 38. The powder of claim 35, wherein the insoluble material comprises dried pulp. 39. The powder of claim 35, wherein the insoluble fiber is composed of a material having an average particle size of between 0.1 and 850 microns. 40. The powder of claim 35, wherein the insoluble fiber is composed of a material having a maximum dimension of between 0.1 and 3000 microns. 41. The powder of claim 35, wherein, if the composition is dissolved in a liquid medium, the resulting beverage would have a concentration of 1 to 150 g composition per liter and a viscosity of between 1.0 and 10.0 cP at a temperature between 2 and 28° C. 42. A dry powder comprising: a composition comprising ingredients in weight percent of the total composition amount:a gas containing agent composed of amorphous particles or gas producing agent in an amount 0.25 to 99.6 weight percent, a foam stabilizer comprising more than 50% quillaia by weight of a total weight of all foam stabilizers present in the composition and present between 0.025 and 81.6 weight percent, a food acid source present between 0.337 and 99.45 weight percent and insoluble material is present between 0.022 to 98.84 weight percent wherein, if dissolved in liquid, the composition produces foam without mechanical agitation. 43. The powder of claim 42, wherein the gas containing agent consists essentially of a carbohydrate. 44. The powder of claim 42, wherein the gas producing agent comprises at least one of a carbonate or a bicarbonate compound wherein if the carbonate or bicarbonate in combination with the acid source are dissolved in a liquid, foam is produced without mechanical agitation. 45. The powder of claim 42, wherein if the composition is dissolved in a liquid, between 2.5 and 35 ml of foam per gram of the material is produced on a resulting top surface of the resulting liquid beverage without mechanical agitation. 46. The powder of claim 42, wherein if the composition is dissolved in a liquid, a foam is produced on a top surface of the resulting liquid beverage, the foam having a duration of between 15 minutes and 48 hours, without mechanical agitation. 47. The powder of claim 42, wherein the food acid is citric acid. 48. The powder composition of claim 1, wherein the composition is soluble at 1-150 grams per liter in water at a temperature between 2 and 28° C. 49. The powder of claim 26, wherein the gas producing agent is present in an amount of 0.25 to 99.6 weight percent of a total composition amount. 50. The powder of claim 26, wherein the composition is soluble at 1 to 150 grams per liter in water at a temperature between 2 and 28° C. 51. A composition comprising: a powder composed of the following ingredients: a dry gas producing agent,a dry foam stabilizer comprising more than 50% quillaia by weight based on a total weight of all foam stabilizers present in the powder, anda dry food acid source,wherein the gas producing agent is present in an amount of 0.25 to 99.6 weight percent based on an amount of the powder and wherein the powder is capable of producing foam if dissolved in a liquid without mechanical agitation. 52. The composition of claim 51, wherein the powder is soluble at 1 to 150 grams per liter in water at a temperature between 2 and 28° C. 53. A beverage kit comprising: a liquid beverage comprising a food acid source; anda powder component comprising a gas containing agent composed of amorphous particles and a foam stabilizer comprising at least 50% quillaia by weight of a total weight of the foam stabilizer present in the beverage kit,wherein, if the powder component is placed in the liquid beverage, at least 2.5 ml of foam is produced per gram of the powder component on top of the resulting beverage without mechanical agitation sufficient to incorporate air into the liquid. 54. The beverage kit of claim 53, wherein the liquid beverage or the powder component further comprises an insoluble material. 55. The beverage kit of claim 53, wherein the gas containing agent comprises a carbohydrate. 56. The beverage kit of claim 53, wherein if the powder component is placed in the liquid beverage, the resulting foam has a duration of at least 15 minutes. 57. The beverage kit of claim 53, wherein if the powder is dissolved in the liquid beverage, the viscosity of the liquid beverage after the powder is placed therein is between 1.0 and 10.0 cP at a temperature between 2 and 28° C. 58. The powder of claim 30, wherein if dissolved in a liquid the carbonate or bicarbonate and the food acid combine to produce foam. 59. A powder composition comprising: a gas containing agent composed of amorphous particles having entrapped pressurized gas held in internal voids which is capable of releasing the pressurized gas dissolution if placed in a liquid,a dry foam stabilizer comprising quillaia present in an amount more than 50% by weight of a total amount of foam stabilizer in the powder composition,a dry food acid source, andan insoluble material,wherein the gas containing agent is capable of releasing the entrapped pressurized gas if contacted with a liquid to thereby produce foam without mechanical agitation. 60. The powder composition of claim 59, wherein the insoluble material is fiber. 61. The powder composition of claim 59, further comprising a fruit-flavor. 62. A powder composition comprising: a dry gas generating agent,a foam stabilizer comprising quillaia present in an amount more than 50% by weight of a total amount of foam stabilizer in the powder composition,a dry food acid source, andoptionally a fiber material,wherein if the dry gas generating agent and the dry food acid source are combined in the presence of a liquid, the dry gas generating agent and the dry food acid source are capable of producing a foam without mechanical agitation. 63. The powder composition of claim 62, further comprising a fruit-flavor. 64. A cold-soluble powder composition comprising: a dry gas containing agent composed of amorphous particles having entrapped pressurized gas held in internal voids,dry quillaia present in an amount of more than 50% of a total amount of all foam stabilizers present in the powder composition,a dry food acid source, andan insoluble material,wherein:wherein if the dry gas containing agent is contacted with a liquid, the dry gas containing agent is capable of releasing the entrapped pressurized gas from the internal voids if contacted with a liquid to thereby produce foam without mechanical agitation, to produce a resulting beverage, andthe resulting beverage would have a pH between 2.5 and 5.4, and5.5 grams of dry gas containing agent, quillaia and the dry food acid are capable of being dissolved in 30 liters at a temperature between 2 to 10° C.