點樣先可以讓晶體大一點

加熱溶劑，不斷攪拌並加入溶質，直至飽和。熄火後，過濾溶液。在濾液中，掛住一粒溶質(作種子之用)，該溶質(=晶體)會變得越來越大，比平時的晶體更大。

你是制藍凡嗎?

用剛煮滾的水, 將藍凡加人, 搞下,

當再融不到, 加入一粒形狀好的晶體, few day later, is finish.

use slow process:
after u heat up the saturated solution, place in the surroundings. Let it cool down slowly by themselves, ignore it.After few weeks, the crystal will be larger and more regular. because the crystal have time to pack the particulates.