You can use a pizza stone, a pizza steel, or just some fire bricks that you can get for $2 each at any big-box hardware store.

你可以用一块披萨石，一块披萨钢，或者一些耐火砖，你可以在任何五金店买到，每块 2 美元。

So if we could replace the 1.2 trillion fired bricks that are made each year with biofabricated bricks, we could reduce CO2 emissions by 800 million tons every year.

因此，如果我们可以用生物砖代替每年制造的 1.2 万亿块烧制砖，我们每年可以减少 8 亿吨二氧化碳排放量。