Coffee grounds: mild acidic, nitrogen, anti-infection/pest, attract warm and provide more air for soil.
Egg shell: calcium carbonate, phosphate fertilizer for flowering and fruits.
Shrimp skins: phosphate, calcium, magnesium as well as protein and amino acid. Help plants grow.
Banana peel: potassium. help plants grow healthily.
Wood ash: K fertilizer
Dry and grind the above and add enzyme and dirt. 2-3 months. it grow white mold during fermentation.
most of the veg peel+yeast+sugar over night it create K rich solution
5:1:1 Nitrogen(N): Posphorus (P): Potassium(K). N: foliage P:root K : overall