Spherification is the culinary process of shaping a liquid into spheres which visually and texturally resemble roe.
There are two main methods for creating such spheres, which differ based on the calcium content of the liquid product to be spherified.
For flavored liquids (such as fruit juices) containing no calcium, the liquid is thoroughly mixed with a small quantity of powdered sodium alginate, then dripped into a bowl filled with a cold solution of calcium chloride, or other soluble calcium salt.
Just as a teaspoonful of water dropped into a bowl of vegetable oil forms a little bubble of water in the oil, each drop of the alginated liquid tends to form into a small sphere in the calcium solution. Then, during a reaction time of a few seconds to a few minutes, the calcium solution causes the outer layer of each alginated liquid sphere to form a thin, flexible skin. The resulting "popping boba" or artificial "caviar" balls are removed from the calcium-containing liquid bath, rinsed in a bowl of ordinary water, removed from the water and saved for later use in food or beverages.
Reverse spherification, for use with substances which contain calcium or have high acid/alcohol content, requires dripping the substance (containing calcium lactate or calcium lactate gluconate) into an alginate bath.
There are two main kinds of spherification techniques and each of them has its advantages and disadvantages which make them more suitable for certain recipes. The Basic Spherification technique consists of submerging a liquid with sodium alginate in a bath of calcium. The Reverse Spherification technique consists of submerging a liquid with calcium content in a bath of sodium alginate. When the liquid drops into the bath, a thin coat of gel forms around the droplet as the calcium reacts with the sodium alginate.
Basic Spherification = The main problem of this technique is that once the sphere is removed from the calcium bath, the process of jellification continues even after rinsing the sphere with water. This means that the spheres need to be served immediately or they would convert into a compact gel ball with no magical liquid inside.
The technique of Reverse Spherification is much more versatile than Basic Spherification as it can make spheres with almost any product. It is best for liquids with high calcium content or alcohol content. Contrary to the spheres made with the Basic Spherification process, these spheres have a thicker membrane and are long-lasting as the process of jellification can be stopped when the sphere is removed from the sodium alginate bath and rinsed with water. Thanks to these characteristics, the Reverse Spherification spheres can be manipulated more easily and can be used in more ways.
Sodium Alginate is a natural polysaccharide product extracted from brown seaweed that grows in cold water regions. In presence of calcium, sodium alginate forms a gel without the need of heat.
In Basic Spherification, the gelling occurs thanks to the diffusion method in which the crosslinking calcium ion diffuses from an outer reservoir into an alginate solution. Gels form when a calcium salt is added to a solution of sodium alginate in water. The gel forms by chemical reaction, the calcium displaces the sodium from the alginate, holds the long alginate molecules together and a gel is the result. No heat is required and the gels do not melt when heated. The gel coating is formed inside the droplet. Because the calcium ions continue diffusing towards the center of the droplet even after removing the sphere from the calcium bath, the gelification process continues and will eventually form a solid gel sphere.
In Reverse Spherification, the calcium ions diffuse from the droplet into the alginate bath, forming a gel coat outside the droplet of flavored liquid. Because the calcium ions are diffusing from the inside out and no alginate molecules are getting into the droplet, the gelification process stops as soon as the spheres are removed from the alginate bath. This allows you to store the spheres for later use.
Spherification เป็นกระบวนการอาหารเหลวเป็นการสร้างรูปร่างเป็นทรงกลมที่มองเห็น และ texturally คล้ายโรมีสองวิธีหลักในการสร้างเช่นทรงกลม ซึ่งแตกต่างตามเนื้อหาแคลเซียมของผลิตภัณฑ์ของเหลวให้เป็น spherifiedสำหรับ flavored ของเหลว (เช่นผลไม้) ประกอบด้วยแคลเซียม ของเหลวเป็นอย่างละเอียดผสมกับผงโซเดียมแอลจิเนตปริมาณ แล้ว dripped ลงในชามเติม ด้วยโซลูชันของแคลเซียมคลอไรด์ หรืออื่น ๆ เกลือแคลเซียมละลายน้ำเย็นเหมือน teaspoonful น้ำทิ้งในชามรูปแบบน้ำมันพืชฟองของน้ำในน้ำมันเล็กน้อย แต่ละหยดของเหลว alginated มีแนวโน้มแบบเป็นทรงกลมขนาดเล็กในการแก้ปัญหาของแคลเซียม แล้ว ช่วงปฏิกิริยาไปกี่นาทีไม่กี่วินาที โซลูชันแคลเซียมให้ชั้นนอกของทรงกลมของเหลวแต่ละ alginated แบบบาง มีความยืดหยุ่นผิว ผลลัพธ์ "popping boba" การประดิษฐ์ "caviar" ลูกจะเอาออกจากการประกอบด้วยแคลเซียมเหลวน้ำ rinsed ในชามน้ำธรรมดา น้ำ และบันทึกไว้ใช้ในอาหารหรือเครื่องดื่มไว้ย้อน spherification สำหรับใช้กับสารที่ประกอบด้วยแคลเซียม หรือมีกรดแอลกอฮอล์สูงเนื้อหา ต้องขจีสาร (ประกอบด้วย lactate แคลเซียมหรือแคลเซียม gluconate lactate) ในการอาบน้ำแอลจิเนต There are two main kinds of spherification techniques and each of them has its advantages and disadvantages which make them more suitable for certain recipes. The Basic Spherification technique consists of submerging a liquid with sodium alginate in a bath of calcium. The Reverse Spherification technique consists of submerging a liquid with calcium content in a bath of sodium alginate. When the liquid drops into the bath, a thin coat of gel forms around the droplet as the calcium reacts with the sodium alginate.Basic Spherification = The main problem of this technique is that once the sphere is removed from the calcium bath, the process of jellification continues even after rinsing the sphere with water. This means that the spheres need to be served immediately or they would convert into a compact gel ball with no magical liquid inside. The technique of Reverse Spherification is much more versatile than Basic Spherification as it can make spheres with almost any product. It is best for liquids with high calcium content or alcohol content. Contrary to the spheres made with the Basic Spherification process, these spheres have a thicker membrane and are long-lasting as the process of jellification can be stopped when the sphere is removed from the sodium alginate bath and rinsed with water. Thanks to these characteristics, the Reverse Spherification spheres can be manipulated more easily and can be used in more ways.Sodium Alginate is a natural polysaccharide product extracted from brown seaweed that grows in cold water regions. In presence of calcium, sodium alginate forms a gel without the need of heat.In Basic Spherification, the gelling occurs thanks to the diffusion method in which the crosslinking calcium ion diffuses from an outer reservoir into an alginate solution. Gels form when a calcium salt is added to a solution of sodium alginate in water. The gel forms by chemical reaction, the calcium displaces the sodium from the alginate, holds the long alginate molecules together and a gel is the result. No heat is required and the gels do not melt when heated. The gel coating is formed inside the droplet. Because the calcium ions continue diffusing towards the center of the droplet even after removing the sphere from the calcium bath, the gelification process continues and will eventually form a solid gel sphere.In Reverse Spherification, the calcium ions diffuse from the droplet into the alginate bath, forming a gel coat outside the droplet of flavored liquid. Because the calcium ions are diffusing from the inside out and no alginate molecules are getting into the droplet, the gelification process stops as soon as the spheres are removed from the alginate bath. This allows you to store the spheres for later use.
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