Can handmade soap be left unopened for a month after being bought? Does it affect soap?

It depends on the packaging. If the packaging is breathable, such as paper bags or cloth bags, it can be placed in a cool and ventilated place. It doesn't matter how long it takes unless the weather is too wet.

If it is plastic wrap or plastic packaging, you'd better pay attention. It's okay when the weather is not so hot and humid, and it will "sweat" and mold if it is too humid. Because the general handmade soap has a "super fat" feature, that is, adding more oil will weaken the overall alkalinity of the soap, and it is these extra oils that are easy to deteriorate.

Of course, this refers to the real handmade cold soap. If the soap made of soap base, the so-called handmade soap, looks beautiful and smells good, it should not matter. Under normal circumstances, there will be no problem (because all soaps will go bad and moldy if they are not well preserved).