Vases, bowls, cups, and glasses are all available on Lê Văn Hưu, Yết Kiêu and Nguyễn Du Street areas even though you can also see these mobile businesses in many other places in Hanoi. This is the most difficult for the buyer who doesn't have any experience. I have made some mistakes before so I know what it's like.
It's hard to see the defects when you buy ceramics on the street, including the plates and vases I bought. They looked really good but after we used them twice, we could see the stains around the centre of the plates and the cracks underneath the vases. This is because it wasn't fired enough in the kiln causing it to crack by itself following the changing of the weather.
You need to bargain quite hard, sometimes as much as a third of the price.
To be continued