Hey everyone, I've been testing for a way to make salt out of sea water. Sea water has at least 3% salt, so anyone can boil it in a pot and get at least SOME salt. Perhaps it's not as high quality as the ones salt farmers create, but still, it's salt. This surely held true during the iron age.
So I researched a bit in order to make a simple addition that makes you capable of making salt yourself. You'll need to get the water from the sea, of course, and you'll need a pot that will become unusable for 5 days. This could help balancing it, though anyway you'll only get 0.2 lbs per full pot of water. Could be changed to {*pot} to free the pot for other use, and removing the [boil] tag. Unsure how that would work with the weighing. You should also be able to drink the water
// Salt-making
// Collecting sea-water simply requires being at a sea tile and having a container
// Weight set to 1, but batches allow various amounts to be made
// Being in the cookery menu makes it not stack properly, but it should be put in a container anyway
// It will appear at your feet
//
.Collect sea-water. "Hunting horn" [effort:0] [phys:hands] *COOKERY* [noquality] /1/ [patch:20]
{[TERRAIN:sea]} 'Be at sea'
{[NEARBY_TILE:water]} 'Be near water'
{Container}
[NAME:Sea-water]
[WEIGHT:1]
[WATER:100]
// Sea-water consists of about 3.5% salt, +/- 0.5%
// Water in the Baltic has much lower salinity than the average, though, so
// You can make exactly 0.06 lb of salt with 6 lbs of sea-water (1%)
//
// Process has to be tended and the water stirred, I set it at 8 minutes per batch (48 minutes per full pot)
// Drying the salt can take days or weeks, so I set it at 5 days for now
//
// A patch of 50 takes 6h40m (and 5 days) to prepare, uses up 50 lbs of sea-water and yields 0.5 lb of salt
//
// Sea-water is 1 lb to allow for smaller batches, but yielding same percentage of salt in the end
//
// Your pot will not be unusable while it prepares
//
.Boil seawater for salt. "Salt" [effort:0] *COOKERY* [noquality] /8/ \5d\ [patch:50]
{Sea-water} #1.0# [patchwise] [remove] 'As much sea-water as possible'
{*pot} '+for boiling the water'
{Board} '+for laying salt out to dry
[WEIGHT:0.01]
[NAME:Salt]
Probably not very lucrative, but at least you can get some of it!
Edit: was missing a [patchwise] tag
For further reference, a single pike takes 0.66 lbs of salt to salt (heh). That's roughly 20 lbs of sea water. Salting is going to be very hard for an inland character without trading or water "mining" expeditions. A coastal character, on the other hand, could somewhat easily make some, though.
UPDATE: changed yield to 1% and no longer boils the water