Peel, slit the back of shrimp, and remove veins
Transfer shrimp into a big (deep) bowl and add ice cold water from your fridge--you can also use regular tap water and add some ice cubes to it. Make sure the shrimp are submerged in water.
Add 1 heap tablespoon of baking soda into the bowl and lightly massage the shrimp with the baking soda water. Set aside for 30 minutes.
Rinse the shrimp thoroughly with cold running water.
Pat dry with paper towels. By now, you should see that the shrimp become somewhat translucent in appearance.
Add egg white and tapioca starch to the shrimp. Use your hand to blend well while lightly massaging the shrimp.
Cover the shrimp with plastic wrap and marinate overnight.
Marinate the shrimp overnight for lunch serving or marinate in the morning for dinner use. The shrimp you use have to be somewhat fresh to begin with. If you have stale shrimps, then sorry, pH9 will not save your shrimp. ;) Baking soda is also the secret ingredient Chinese chefs use to make meat tender . You can learn it in my Cashew Chicken recipe . Last but not least, I add a wee bit of baking soda in the batter to make fried foods extra crispy and airy. You can learn more in my sweet and sour chicken recipe .