Why does the broth taste bitter?

pu1. You don't boil the kelp until the end, but when it starts to boil, you have to take it out in the middle. Maybe you left the kelp to the end?

2017-12-14

OK

pu2. If you don't remove anchovy poo or if radish is used, it tastes bitter. Looking at it, I heard both of them

2017-12-14

OK

pu3. I think that's the case with radish. If you just eat the radish, it won't taste bitter

2017-12-14

OK