Thinking for a moment, ello suddenly noticed that cocoa looked worried at him, and quickly smiled and said, "what\'s the matter?"

Cocoa held his iron staff and said, "brother President... Is it really all right? You look worried... I don\'t like those two soldiers. They make me feel very bad. There is a feeling of being powerful. "

Arrow laughed, reached out and touched the little girl\'s head and said, "well, well, don\'t think so much. They are regular imperial soldiers. It\'s understandable that they are unkind to our rural guilds. By the way, what did you come out to find me just now? "

Hearing what Ailuo said, cocoa finally remembered her purpose and immediately put the matter behind her. She held up a bottle of therapeutic aerosol in her hand and said, "this is the therapeutic aerosol that the president\'s brother gave me for self-defense, but now it looks strange."

"Strange?"

For a moment, ello didn\'t understand what this meant. He took the glass bottle, picked it up and looked at it.

At this time, he found that those therapeutic aerosols that should have been gaseous inside were now slowly condensing into liquid?

This scene made arrow a little nervous. He quickly turned his head and looked at the therapeutic aerosol on the shelf behind his counter... Some of them began to condense into liquid more or less.

"What\'s going on?"

Arrow took all the therapeutic aerosols down and looked a little nervous. You know, it\'s all money! Now these problems are digging for his money!

"Napa! What\'s going on? Napa! "

The sleeping lazy cat couldn\'t help being yelled by arrow. It climbed up slowly, and its ears were obviously drooping because it didn\'t have enough sleep. But when he saw arrow rushing towards him, he suddenly woke up, and his body floated back and hovered in the air.

"What?! What do you want? "

"I\'m going to ask you what you\'re doing! What\'s going on?! "

Arrow raised the medicine bottle in his hand and pointed at it, his face nervous.

Napa floated slowly with vigilance. After seeing the condition in the medicine bottle, the ears that had been raised because of vigilance drooped again, looked listless and said, "Oh, it\'s expired. What\'s the big deal."

"Expired? What does expiration mean? Hey! "

Arrow couldn\'t accept the answer. His voice was louder and louder again and again.

Napa was impatient. After hovering for a moment, she flew directly to cocoa\'s arms over there and lay down comfortably. Cocoa was holding it nervously and excitedly on her face and dared not move.

"It\'s literally expired. You put them on the shelf without cold storage and direct sunlight. Moreover, the temperature in our guild is very warm. Of course, the therapeutic aerosol is easy to expire. "

Arrow rushed over. He couldn\'t catch the cat, but he could jam cocoa\'s shoulder with his hands and kill him. This appearance did not scare Napa, but made cocoa blush on her face and soften her calf and stomach.

"Why did your alchemy expire?"

"Nonsense, have you ever seen a medicine that works forever? Since the food in this world can expire and the dead body will rot slowly, why doesn\'t the medicine refined by Alchemy expire? "

Arrow\'s mouth twitched: "then why didn\'t you tell me before?!"

Napa\'s ears pricked up a little, and then slowly drooped down after a moment: "I don\'t think this thing needs to be told in particular? Medicine has a shelf life. Isn\'t that common sense? And just like food, the best way to preserve it is low temperature, dry and dark. The same thing is to enter the human body. There should be no difference in the same way of preservation. Do I need to tell you this common sense question again? "

Arrow must admit that he didn\'t think of it.

But after hearing what the cat said, he felt as if it was true.

In the end, the root of the problem is that he had no contact with the shelf life of alchemy when he was in school. It\'s right to think about it. The magic books and alchemy books he can understand are the simplest and most basic ones. There\'s no need to introduce the shelf life of such books at all. It\'s like cooking books don\'t say how long a dessert can only be kept after it is made.

However, this uncomfortable state of mind is really making arrow uncomfortable.

"Napa, you... Really know how to use \'common sense\'?"

Napa looked out of cocoa\'s arms, but the cat suddenly pricked its ears.

I saw that now ello narrowed his eyes and his face was covered with a smile of "absolute innocence and kindness". This smile is even more business smile than business smile!

This expression made Napa\'s hair explode. The cat was a little nervous and said, "that... This is really the common sense of any magician. I think... Ordinary people should... Should also... "

Arrow clapped his hands and said with a smile, "it doesn\'t matter. Coco, from tomorrow, our vice president\'s three meals a day will all become the freshest raw milk. Since quality is so important, of course, we should give our vice president the freshest food. "

"Wait! Oh, I see! I forgot to tell you the shelf life! I admit this mistake! Don\'t change my food! "

Now, it\'s Napa\'s turn to worry.

Cocoa smiled: "vice president, I thought you could eat anything. Unexpectedly, you also hate raw milk? I also hate it. It tastes terrible, full of the smell of excrement and urine, and a kind of milk smell. It doesn\'t look very healthy. Sometimes it even floats some cow dung and cow urine. Before, when my parents took me to milking, I tasted a little, drank a little, and then had diarrhea that day. "

Napa looked nervous. She floated out of cocoa\'s arms and said, "don\'t change my recipe! Arrow, I like the milk you cook every day, and you filter it very clean, so don\'t ignore my three meals a day. It\'s my fault. I want to make up for it now. How about it? "

Ailuo sighed. The smiles on his face finally disappeared and changed into a bitter smile: "I told you earlier. What about these therapeutic aerosols? Can you still sell it as an ordinary therapeutic potion? "

Napa flew over and looked at it for a while and said, "no, once it fails, these liquids are just ordinary medicine residue water. Drinking them will not cure the body, but will cause damage to the body. And I don\'t guarantee the taste. "

This is all money

Arrow looked at these therapeutic aerosols with regret.

It seems that it is impossible to let cocoa refine some therapeutic aerosols every three or five times, and then store them as stock. The more you save, the more money you lose after expiration.

When ello looked helpless, Napa continued to think silently around these potions. After a while, the cat suddenly seemed to think of something and held out its claws——

"But don\'t worry too much. These ineffective potions have no cure function. What\'s more, they can be used as a" reverse essence "agent.

Arrow: what do you mean

Npah\'s paw pointed to the floor: "isn\'t that blood worm finding a way to extract its essence all the time?" This is because our magician\'s magic is not enough. The knowledge reserve is not rich enough. "

Cocoa blushed and lowered her head shyly.

"But with these reverse essence, you might be able to do that. Moreover, the venom sac gland of the venomous spider you brought back last time can also extract the toxin in it by this method. Go and take the bloody bug and the venomous gland to the alchemy room. "