Side-by-side or overlay PDF diff driven by one engine that reads each file into a structured model — text, vector geometry, images, form fields, annotations — and compares the models. Moves show as moves, edits show only where they happened, and any PDF type works without picking a mode.
Open a STEP / STP part and it measures itself — volume, thinnest wall, draft and undercut checks on load, plus hole detection with a BOM. Measure, section, export STL. Rust + WASM B-rep kernel, runs in your browser.
Pa kimchi is whole green onions, salted in brine and coated with a paste of red pepper powder, garlic, glutinous rice paste, sugar and anchovy sauce. It ferments more slowly than cabbage kimchi and becomes a pungent, sour side dish. Made in 4 steps over 5.2 days – 34 days. The longest step, ferment, takes 5–34 days (Lee J.-H 2019) and runs at 10–25 °C (Lee H.-J 1999). Salt is 10 % (Lee J.-H 2019). Leuconostoc mesenteroides and Lactobacillus plantarum, the main lactic bacteria when it is well ripened and Levilactobacillus brevis, which made tyramine, putrescine and cadaverine in some strains do most of the fermenting.
No fixed amounts recordedThe 2019 study made pa kimchi to a target salt of 2.5 % but gives no amounts for each ingredient. Household recipes vary and have no fixed amounts.
Green onions · Soaked whole in 10 % brine[lee2019]
Anchovy sauce (myeolchi-aekjeot) · The main source of biogenic amines in the study[lee2019]
Starter: spontaneous
Total time across the recorded steps: 5.2 days – 34 days
Start
Drag the bar or press Play
What changes:Salt brine wilts the whole green onions
Step 1 of 4
Soak the green onions in brine
Time
3 h
Measured
Temperature
Not documented
Salt
10 %
Measured
Acidity
Not documented
Which microbes the steps name, step by step
Leuconostoc
Lactobacillus than
Flavour
Not documented
Texture
stems soften and bend
Colour
Not documented
Microbes at work in this step
Not documented for this step.
Method
Measured measured in a studySet fixed by a specification or tested recipeReported one source reports itTypical a general value, not sourced for this fermentUnconfirmed not yet checked against a source
What makes this one different
Pa kimchi ferments more slowly than cabbage kimchi. Green onions carry fewer lactic bacteria and keep more sugar to the end of the ferment, and at 10 °C pa kimchi was still fermenting after 34 days.
In a 2019 survey, 6 of 13 market pa kimchi samples held about two to four times the 100 mg/kg histamine level suggested as safe, and 5 of 13 were over that level for tyramine. The anchovy sauce was the main source; using less of it, or a low-amine sauce, lowers the amines.