How do you make shrimp crunchy? More precisely, how do you make shrimp Chinese-restaurant-crunchy?
I’ve been obsessed with this subject matter for the longest time–a topic that took me a while to research. If you’ve tried dim sum or shrimp dishes in Chinese restaurants, you know exactly what I mean–shrimp so crunchy they give a mouth feel that they “bounce” in your mouth as you sink your teeth into the firm flesh. In Chinese, it’s called 爽脆 (shuangcui).
Great Chinese food is all about texture and mouth feel (口感) of everyday ingredients, the most basic skill that a good Chinese chef should acquire.
My uncle in Hong Kong is a huge connoisseur and a fantastic cook; he taught me the secret technique which he learned from a Cantonese top chef in Hong Kong–water.
Yes, cold running water to rinse shrimp (up to hours) until the flesh firms up and becomes translucent. I have later confirmed this technique with a few kitchen workers in Chinese restaurants, and yes, it’s true…(learn the secret technique of making shrimp crunchy after the jump)
I tried the cold running water technique at home and it works. However, it’s not ideal for home cooking because too much water is wasted during the treatment process. I resolved to research further for an alternative method best for home cooks.
When I was in Beijing this June, I chanced upon a great Chinese cookbook with the best step-by-step picture guide of making har gow or shrimp dumplings.
It reveals that a pH9 alkaline water is the secret behind crunchy shrimp, and a light massage while marinating pretty much does the trick. The PH9 clue intrigues me.
I came back and went to my favorite Chinese restaurant in Irvine and investigated further. The chef told me that they don’t use alkaline water, but swear by the process of marinating shrimp with egg white, tapioca starch (菱粉) and baking soda, a process they called “上浆” (shangjiang) or literally “coating with starch.”
I researched further about pH9–which is a scientific measure of the acidity of a solution. Anything that is more than pH7 is alkaline. I found out that tap water–depending on its source, origin, or location–is usually close to pH9, which explains the reason why cold running water is used by Cantonese chefs.
Sea water is pH8 and the reason why live/raw shrimps have firm and crunchy flesh. I also learned that baking soda and egg white are both pH8. At that point, everything becomes crystal clear to me.
So, here it is, the technique that you’ve been waiting for–a well-protected “trade secret” used by Chinese and Cantonese chefs to treat their shrimp, which I have adapted and modified for home use.
I’ve tested it many times in my kitchen and it never fails me. I made my shrimp and chive dumplings with texture exactly like the ones served at dim sum restaurants.
I made a stir-fry shrimp dish and the shrimp bounced in my mouth and “crunched” as I bit into the flesh. This technique works like a miracle!
If you know another technique that works well, please share with me via comments! Otherwise, try my method below and you will be serving jumpy, bouncy, and crunchy shrimp in no time!
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