Complex sentence: One teachers manual for the instruction on the demonstration and explanation of the Bologna bottle listed the manufacturing process as quick cooling a glass right after being blown, then annealing it from the outside again and as annealing specifies, allowing it to cool down slowly once more.
Split into simpler sentences: One teachers manual for the instruction on the demonstration and explanation of the Bologna bottle listed the manufacturing process as quick cooling a glass right after being blown. Then annealing from the outside again and as annealing implies, allow to cool down slowly once more.