I know people mean well, kindness can only cover for so much.

There's so much rust...compared to what I THOUGHT was rusty.

Be safe out there everyone!

This is a VERy quick draft, as I don't know if it'll even belong here in the subreddit.

Didn't even crop or rotate pictures, but of those I've included so far, have been the most ...intriguing to me.

I didn't expect the 'strainer plate' at the bottom to be japanned - but here we are. Doing a bit of detective work on this trying to figure out how it was sold.

Sadly, due to lack of resources (Gilsonite / Cold Pressed Turpentine / A designated oven & time/temperature steps) my restoration will *not* be returning the Japanned finish, but instead using an oil based enamel on the OUTSIDE & NON-FOOD CONTACT areas. Followed with BEESWAX Inside - because the typical 'season cast iron over heat/in the oven' isn't feasible here, and wasn't used previously. We'll be documenting our process along the way, and I HOPE to have detailed measurements on everything when done so others can use/learn etc. from them - and so the day I find a machinist, or become one, I can remake parts for this much closer to how they were.

Thanks for accepting the rambling.

Note: Ignoring Soldered parts - this press is made up of a total of...23 pieces? 29 if all soldering was undone on the strainer...and I had the missing 'large' plate.

Asking here, because I spent a bit of time making the illustration (visual learner), and r/AskPhysics doesn't permit images :/

So something I'm working on calculating are the resulting forces of a proposed mechanical system - and I'm curious to learn if there's ANYTHING I'm not considering, specifically forces/stress related, to why ye-old handles wheels some times used curved spokes.

In my evaluation, Because D (Distance), F (Force), and the location of the fulcrum are the same all resulting forces should be the same. Still...something is causing an 'itch' in my brain that says 'the non perpendicular transfer from the outside of a wheel to the spoke means less stress when rotated in one direction and more in the opposite (I've seen 2x spokes S curved wheels as well.)

Or is this PURELY a cosmetic choice, and has 0 impact on the stressors?

Thank you for your help/insight on this topic!

I've cooked on many copper-tinned skillets, but something that escapes me are the earlier 'enameled' (Japanned) finishes that were designed with direct food contact in mind.

Same goes for the polymerization that is 'seasoning' cast iron gear with oils via controlled high heats.

All 3 of the mentioned 'coatings' have benefits & negatives, in terms of production requirements, and maintenance.

What I'd like to learn more of is 'how/when' were specific finishes on direct-food-contact determined to 'function' well enough?

Example: the illustrated Sausage/Fruit & Lard Press came in either 'Japanned' or 'Tinned' (and even some 'Galvanized') But outside of negative customer experience/product reputation, how was it known, these were good enough to go into production. I can't imagine, because the example press is a no-heat (as in 'not cooked with' cracklins's are toasty when pressed) operation the go-to 'seasoning cast iron' wouldn't be sufficient/intended.

All the while high acidic contact (lemon juice/tomatoes/etc) react ...as acids do with materials.

So, that's the inquiry/discussion - how were finishes like 'tinned'/'japanned'/'galvanized' verified to 'be good enough to manufacture' despite the reactions from food? Thanks!

^(Note: For anyone asking - 'Japanned' is a black coloured hard finish made from Asphaltum, Boiled Linseed Oil, and Turpentine (I presume Asphaltum was for colour - it's sold from paint suppliers, Turpentine was for 'thinning/application' of the coating - as it evaporates...and leave little(?) behind. and Boiled Linseed Oil is the actual protective coating.))

What are you talking about?

Japanning - it's a very old tough coating used for centuries. It's made up of 3 things:

• Gilsonite / Asphaltite / Uintahite / Asphaltum : https://www.chemicalbook.com/msds/asphaltum.pdf
• Boiled Linseed Oil : https://www.chemcentral.com/media/product_attribute/sds_file/s/d/sds_file-16056302.pdf
• Turpentine : https://www.chemicalbook.com/msds/Turpentine-oil.htm

The Gilsonite is dissolved in Turpentine, then Boiled Linseed Oil is added. The thick mixture is applied by being 'painted' or, in the case of this press, 'dipped'. Then 'japanned' item is baked multiple times at specific heats and cooled in between, 'setting' the coating.

So, knowing what it's made out of - and having seen that, indeed, the original presses were 'dipped' (coating inside and out), the question is - of the listed items, and knowing the process undergone, is it safe to pass food through? I, ignornatly, assume that the Turpentine evaporates, and the Gilsonite is just the finish pigment, so the Boiled Linseed Oil is the real concern (along with the particulates of Gilsonite that will inevitably be picked up)

Yes, I know there's multiple people who 'season' but that's not practical due to acidic foods such as tomato/apple/lemon.

Thanks!

The Snapshot: https://www.minecraft.net/en-us/article/minecraft-26-3-snapshot-4

>Technical Changes

- Loot table types that have a dedicated registry now support registry element and tag references

-- This means that the majority of fields of such types that previously accepted single elements will now accept either a namespaced ID or an inline value, while fields that previously accepted lists can now accept an inline value, a single namespaced ID, a list of namespaced IDs, a list of inline values, or a hash-prefixed tag ID

--Affected types:
---minecraft:advancement
---minecraft:item_modifier
---minecraft:loot_table
---minecraft:number_provider
---minecraft:predicate
---minecraft:recipe
---minecraft:slot_source

--Existing reference types for predicates, item modifiers and slot sources are now obsolete and have been removed

Datapack Loot table that used to work - but no longer does: (Should produce a single Enchanted Book with the enchantment "Frost Walker II")

{
  "type": "minecraft:chest",
  "pools": [
     {
      "rolls": 1,
      "entries": [
        {
          "type": "minecraft:item",
          "name": "minecraft:enchanted_book",
          "weight": 0,
          "functions": [
            {
              "function": "minecraft:set_enchantments",
              "enchantments": {
                "minecraft:frost_walker": 1
              },
              "add": true
            }
          ]
        },
        {
          "type": "minecraft:item",
          "name": "minecraft:enchanted_book",
          "weight": 1,
          "functions": [
            {
              "function": "minecraft:set_enchantments",
              "enchantments": {
                "minecraft:frost_walker": 2
              },
              "add": true
            }
          ]
        },
        {
          "type": "minecraft:empty",
          "weight": 0
        }
      ]
    }
  ],
  "random_sequence": "minecraft:chests/ancient_city_ice_box"
}

I have no clue how to correct this, as there's no error in the output log, as well Mojang failed to provide an illustration of the syntax change, so the 'translation' is only for those who understand how "while fields that previously accepted lists can now accept an inline value, a single " translates into something like this:

"name": "minecraft:enchanted_book",
          "weight": 3,
          "functions": [
            {
              "function": "minecraft:set_enchantments",

Thank you for your help on this most recent change.

From the latest snapshot: https://www.minecraft.net/en-us/article/minecraft-26-3-snapshot-3

>Potion Predicates

>The minecraft:potion_contents Data Component Predicate has been changed to allow matching on specific potion effects.

>The previous predicate format used a list of potion types, the new format allows for more refined matching.

>The following fields can be used in any combination, all are optional:

>potions - A list of potion types or a potion tag to match

Problem is, extracting the .jar, the only file in predicates taht comes up is 'tool' > 'can_shear.json' / 'can_silk_touch.json'

I've found the brewing recipes, and can swap one effect for a currently existing effect, but if I'm trying to change Night Vision - corrupted with fermented spider eye, into 'Blindess' I just get an error:

Registry loading errors:
> Errors in registry minecraft:recipe:
>> Errors in element minecraft:brewing/potion_night_vision_fermented_spider_eye:
java.lang.IllegalStateException: Failed to parse minecraft:brewing/potion_night_vision_fermented_spider_eye from pack file/brew
at net.minecraft.resources.RegistryLoadTask$PendingRegistration.loadFromResource(RegistryLoadTask.java:111)
at net.minecraft.resources.ResourceManagerRegistryLoadTask.lambda$load$2(ResourceManagerRegistryLoadTask.java:46)
at net.minecraft.util.thread.ParallelMapTransform$Container.applyOperation(ParallelMapTransform.java:89)
at net.minecraft.util.thread.ParallelMapTransform$BatchedTaskSplitter.lambda$createTask$0(ParallelMapTransform.java:213)
at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1825)
at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1817)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:511)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1450)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2019)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:187)
Caused by: java.lang.IllegalStateException: Unknown registry key in ResourceKey[minecraft:root / minecraft:potion]: minecraft:blindness missed input: {"minecraft:potion_contents":{"potion":"minecraft:blindness"}}
at com.mojang.serialization.DataResult$Error.getOrThrow(DataResult.java:287)
at com.mojang.serialization.DataResult.getOrThrow(DataResult.java:81)
at net.minecraft.resources.RegistryLoadTask$PendingRegistration.loadFromResource(RegistryLoadTask.java:109)
... 9 more

Just working on identify what all needs to be included in a datapack to add new potions - their duration, using existing effects that don't currently have a potion. Finding the actual 'predicate' mentioned in the notes would help I imagine.

Thanks!