Does Handmade Soap Expire

One question that comes up fairly often when people buy several bars of soap at once is whether handmade soap expires.

It’s a reasonable question. When you start buying soap from a farm or a small maker instead of a big store brand, it’s natural to wonder how long it will last sitting in your bathroom drawer.

The good news is that handmade soap doesn’t spoil the way food does.

Traditional soap is made through a process called saponification, where oils and lye combine to create soap and glycerin. Once that process is complete and the soap has finished curing, the bar itself is very stable.

That said, soap is still made from oils, and oils slowly change over time.

The natural fats used in handmade soap can gradually oxidize as the months go by. When that happens, the scent may fade and the bar might not smell quite as fresh as it once did. The soap will still clean, but the overall experience may be slightly different.

Because of that, most handmade soap is best used within one to two years.

Interestingly, a bar of soap often improves during its early life. As soap sits and continues to dry, more water slowly evaporates from the bar. This makes the soap harder and often helps it last longer in the shower.

Some soap makers actually enjoy using bars that have aged for several months because they become extremely firm and long lasting.

Proper storage also makes a difference.

If you’re keeping extra bars on hand, the best place to store handmade soap is somewhere cool, dry, and well ventilated. A linen closet or drawer works well. Soap doesn’t need to be sealed in plastic, and in fact it’s better if the bars can breathe a little.

When stored properly, handmade soap can sit for quite a long time and still perform beautifully.

Most people who start using handmade soap find the bigger challenge isn’t whether it expires — it’s that the bars tend to get used up faster than expected because everyone in the house starts reaching for them.

Ok, bye!