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第八十五章 制冰之法(1 / 2)

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朱爽道:“这有何难,本王制一些冰就是了!”

邓氏一副很诧异的表情,“王爷说硝石制冰吗,那也太费事了吧!”

网文小说中穿越后的发家秘技之一硝石制冰,其实早在唐朝末年就出现了。

那时因为生产火药所需,开采了一些硝石矿。人们无意间发现硝石溶于水时会吸收大量的热,使水降温到结冰,从此可以在夏天制冰。

而后逐渐出现了做买卖的人,把糖加到冰里吸引顾客。到了宋朝,市场上冷食的花样就多起来了,商人还在里面加上水果或果汁。元代的商人甚至在冰中加上果浆和牛奶,类似于现代的冰淇淋。

不过到明朝时,这类现象就基本绝迹了!

无他,硝石除了能制冰,最关键的作用是制作火药啊!

朱元璋能夺取天下,对火铳、火炮的改进与应用是很重要的一个因素,自然不会令民间硝石泛滥。

否则谁知道是拿去制冰,还是流落到白莲教手里,制成火药炸他的大明天下啊!

是以大明开国二十多年后,还能记得硝石制冰的人,还真不多。

不过对于邓氏这个将门之女而言,就不算什么大秘密了。她不仅知道硝石制冰,还曾听邓愈说过,那法子不是很灵,是能把水温降到很低,可想要让其真正结冰相当费事,才有这么一说。

朱爽未料邓氏有这种见识,笑道:“爱妃说说,究竟哪里费事?”

邓氏扳手指数道:“就说硝石吧,除了兵部库房也就药房才有,然而药房里的硝石少的可怜,想来也不够干嘛的!”

朱爽哈哈一笑:“你知本王最大的本事是什么吗?”

邓氏目光下移,朱爽猝不及防,失笑道:“你个小机灵鬼!”

邓氏娇声:“王爷,你都快一个月没宠幸臣妾了!”

朱爽无奈,其他也挺难受的,问题这不是装病呢吗,自然知道的人越少越好!

不然,他“病重”期间,邓氏容光焕发一副很受滋润的模样,被锦衣卫或其他王府的探子瞧了去,不是怀疑他装病,就是怀疑他脑袋绿油油啊!

“等身子好了,自然宠你这小狐狸精,你也不想我落下病根吧!”

邓氏主要就是想撒个娇,妨害秦王身体的罪名,还真不敢担,忙道:“自然不想,臣妾每日都拜佛求神,求他们保佑王爷快些好起来呢!”

“他们?”朱爽心里道,你这是拜了多少个。

可此刻的话题重点不是这个,朱爽也就不去深究,而说道:“据我所知,在汉中就有很多硝石矿,我命人去采一些就是!”

邓氏一愣,旋即道:“硝石可没什么人买,王爷不要雇人太多,免得折了本钱!”

“自然知晓!”朱爽继续道:“至于你说的,很难结冰的问题,其实也不难!”

“王爷可有妙法?”

“妙法谈不上,只是更懂原理罢了!”

邓氏哪有心思听这些,更没耐心听朱樉卖关子了,娇声道:“王爷!”

朱爽道:“其实原理说透了,也很简单,硝石制冰关键,在于外界的温度不能太高,否则硝石吸热,空气加热,这么一抵消就很难结冰了!”

“原来,是这么回事啊!”

朱爽一脸恶趣味的表情,“当年岳父大人,不会是在三伏天大太阳底下,给你表演硝石制冰吧?”

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