Rebozados - Agentes Leudantes

Nutrionix
Open Food Facts

Diferencia entre baking powder y baking soda

BAKING POWDER (SODIUM BICARBONATE, SODIUM ACID PYROPHOSPHATE, MONOCALCIUM PHOSPHATE).

Baking Powder
Baking Powder Historia

Monocalcium Phosphate

Sodium Aluminium Sulfate

Calcium Sulfate

Bicarbonato encapsulado y explicación de otros agentes leudantes

Kitchen Smarts: Questions and answer to boost your cooking


Far more important is the fact that beer is carbonated, wich affects the batter in two ways. 
Firt the bubbles provide lift as they escape from the batter during frying. Second the carbonation makes batter slightly mor acidic, which limit how much gluten can form when the beer and  flour mix, preventing the batter from turning tought. This is because gluten form most readily in a pH of 5 to 6, while most carbonated beverages have a pH of 4 (unless they contain a strongly acidic ingredient.

Rebozado japones con ammonia powder

Ammonia Powder