Cure racks and airflow
Updated
On this page5
Six weeks of every bar you make, sitting somewhere, unsellable. It is the real constraint on a soap business.
The largest space requirement
Production capacity in this craft is not how much you can make. It is how much you can cure at once.
A month of output is on racks simultaneously, because nothing leaves for six weeks.
Which is why a growing soap maker runs out of room before running out of anything else.
What a rack has to do
Give every bar air on as many faces as possible: mesh, slats or open trays, not solid shelves.
Bars on edge rather than flat, spaced so they do not touch.
Somewhere stable in temperature, low in humidity, out of direct sun and away from strong smells.
And somewhere nobody will move them, because a rack that gets shuffled loses its batch identity.
Labeling the rack
Batch number and cut date on every shelf, physically attached.
Six weeks is long enough that memory fails, and a rack of unidentified bars cannot be sold with an honest cure claim or an honest net weight.
Add the target sale date, which makes rotation obvious to anybody walking past.
Space arithmetic
Work it out before scaling rather than after.
Bars per loaf, loaves per week, six weeks of accumulation, divided by bars per shelf.
Two loaves a week at a dozen bars is 144 bars on racks at steady state, which is more shelving than it sounds.
And every increase in production increases it proportionally, immediately, six weeks before the extra revenue arrives.