Cleaning sea cucumber is not as daunting as you think. A lot of passive waiting, but not labor-intensive
Chances are if you land on this post, you must be trying to rehydrate the dried sea cucumber you have and trying to figure out how to clean them. Cleaning sea cucumber is actually not as daunting as I used to think. You just need to plan ahead when you are going to make a dish using sea cucumbers because it takes some time to prepare and get the hard rock sea cucumber to soften and plumped up. There are so many different kinds of sea cucumbers. The first time my husband brought home some dried sea cucumber 6 years ago, they were kind of different than the one shown here in the photos. They have more whitish coating on them and inside them, while these have more bumps on the outer skin.
Here was me trying to rehydrate the dried sea cucumber by submerging them in clean water. You need to make sure to change the water every day. I cover them with a cling wrap so no other particles will get in.
This was at day 4 of rehydration. The sea cucumbers are soft and plump enough that I’ve ended the soaking period on this day. Some of them may need longer soaking period. You may ask the sellers what they recommend, though not all of them would be able to tell you. The first batch my husband brought home 6 years ago were soaked for 6 days before they were plumped enough to be cleaned. You can see the sizes have doubled/tripled from their original dried forms.
I tried my best to scrap all the “stuff” out from the inside of the sea cucumber. I scrap off whitish stuff that stuck to the inner walls of the sea cucumber too. I did this over small stream of fresh running water. Here I asked my husband to help me pry open to show you what it’s like before it’s being cleaned. You can see all the stuff inside
How to clean sea cucumbers
Always check with the seller when possible, on how many days you need to soak the sea cucumber as this depend on the size, the grade/quality of the sea cucumber you get
If you are soaking for several days, always change with fresh water every day until the end of the recommended soaking period. Make sure the sea cucumbers are completely submerged in the water. Cover them so no other particles will get in
After 4 days of soaking, they have soften considerably. I run my thumb up and down to get rid off the stuff inside the sea cucumber. You may need a knife if it's hard to do it with your hands. You may also need to scrap the outside of the sea cucumber to get rid of the extra "whitish" crust if any is present
It had almost doubled in size at the end of the soaking period
At the end of the soaking period, in my case, day 4, boil the sea cucumber for about 1 hour in a big pot with a lid on over low to medium heat and do not remove the cover
Throw away the water. If they are still hard, boil again with a fresh water until it is soft and bouncy (you can leave the lid out this time). Be careful not to over boil or it can turn into mush
Once they are soft, throw away the boiling water. You can wrap them with plastic wrap and freeze them if you are not going to use them soon. They can be freeze for months
When ready for use, thaw them in the refrigerator overnight and then cut them into the desire sizes