Quality Crafting Explained (Tale of Toast)
Checking to see if Spee.ch has your asset locally...
Game: Tale Of Toast Developer: Toasty Leaf AB Publisher: Toasty Leaf AB Link: https://store.steampowered.com/app/640150/Tale_of_Toast/
Vid explains everything about quality and its limitations. Be warned: you'll lose the materials if item fails, but you'll keep the Pein Hammer.
UPDATE (March 3, 2018): You need a minimum of 20% progress to add quality. You can keep adding quality as long as you have 20% progress, too.
UPDATE (March 10, 2018): If you have 50% progress or more, it automatically adds +2 quality if you click quality just once, and it becomes successful. ... https://www.youtube.com/watch?v=3Vd28K5Hz6o