How to clean burn marks inside glazed claypot?

I tried to make claypot rice and i guess i overdid it. Soaked it overnight and 50% came off. How do i get rid of the rest without damazing the glaze?

u/miristall — 1 month ago
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How do i get rid of these burn marks on my glazed claypot

I borrowed my sister’s claypot to make claypot rice. I was trying to get a crispy bottom but apparently overdid it. I soaked it overnight and 50% came off but still have the rest left in the bottom. Trued boiling with baking soda didnt really work… but i dont really know the optimal ratio/proportion. Any advice?

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u/miristall — 1 month ago