Slow rehydration at less than 10°C for 5-24 hours is required to increase the Umami Guanylate.
To reduce soaking time, take out the Shiitake one hour after you started soaking, remove the stem, soak for another enough hour until soft. Shiitake absorbs water from the cut surface of the center, so it can be quickly and plumply rehydrated.
- Putting Shiitake in a zipper bag and letting them rehydrate makes it easier to put them in the space in the refrigerator.
- The amount of water should be just enough to soak the Shiitake. If the amount of water is too little, add more water later, and if it is too much, use it as a broth.
- Strain the soaking water through a tea strainer to avoid unwanted flavors.
Dried Shiitake mushrooms should be rehydrated in cold water to make them sweeter and tastier without any messy taste.