How to prevent bamboo teacups from cracking before use?

Boil with 3% salt water and pour in. You can also soak in the bathtub. Add 3% salt or alkali, bleaching powder and lime to water and soak for 2 to 3 days to prevent moths. Old bamboo products, if found to be moth-eaten, can be boiled into juice with tobacco bag water or tobacco leaves and poured into the moth-eaten place; Or sprinkle a layer of quicklime powder on the whole bamboo surface and blanch it with boiling water in a few days; You can also put a little pepper powder in the moth-eaten place and scald it with boiling water, so that the pepper powder can be injected into the moth-eaten hole to kill insects. In addition, the cooling oil plugging effect is also good.