Dross of Pure Sacred Dewdrop is the lowest-tier weapon ascension material in the Sacred Dewdrops family, used to level up several Fontaine weapons. It carries a 2-star rarity and drops from a single domain in the Court of Fontaine that only opens on set days of the week. The material was added in Genshin Impact Version 4.0.
Where to farm Dross of Pure Sacred Dewdrop
The drop comes from the Echoes of the Deep Tides domain, listed in-game as the Domain of Forgery: Artisanship, located in the Court of Fontaine. The domain only runs on Tuesdays, Fridays, and Sundays, so plan your weapon ascension around those days.
Step 1: Travel to the Echoes of the Deep Tides domain in the Court of Fontaine and open it on a Tuesday, Friday, or Sunday. The domain is closed on every other day.
Step 2: Pick the highest difficulty stage your party can clear. Stage I is recommended for around level 15, but higher stages give better material yields per run.
Step 3: Clear the challenge, then spend 20 Original Resin to claim the rewards. You can double the haul by using one Condensed Resin instead.
Outside the domain, you can also receive this material from the Parametric Transformer and exchange it in the Souvenir Shop (Gift Shop), which gives a small secondary route if you are not farming the domain directly.
How the Sacred Dewdrop tiers work
Dross is the entry-level material in the line. You convert it upward through alchemy crafting rather than finding higher tiers in the domain directly.
| Output | Recipe |
|---|---|
| Sublimation of Pure Sacred Dewdrop | Dross of Pure Sacred Dewdrop ×3 + Mora ×125 |
Weapons that use Dross of Pure Sacred Dewdrop
No characters use this material for ascension. It is purely a weapon ascension item, required by seven Fontaine weapons spanning both 4-star and 5-star rarities. Each weapon pairs the Dross with a regional drop and an enemy material.
| Weapon | Rarity | Other ascension materials |
|---|---|---|
| Finale of the Deep | 4-star | Drop of Tainted Water, Old Handguard |
| Flowing Purity | 4-star | Rift Core, Transoceanic Pearl |
| The Dockhand's Assistant | 4-star | Old Operative's Pocket Watch, Transoceanic Pearl |
| Tome of the Eternal Flow | 5-star | Rift Core, Meshing Gear |
| Splendor of Tranquil Waters | 5-star | Drop of Tainted Water, Transoceanic Pearl |
| Silvershower Heartstrings | 5-star | Feathery Fin, Transoceanic Pearl |
| Symphonist of Scents | 5-star | Drop of Tainted Water, Transoceanic Pearl |
How to confirm you got the material
After a successful domain clear and spending Resin, the reward screen lists Dross of Pure Sacred Dewdrop along with the run's other drops. You can verify it landed by opening the inventory, going to Character Development Items, and checking the Sacred Dewdrops group, where it appears as a 2-star entry.
If the domain shows no entry option, the most common reason is the day. The Domain of Forgery: Artisanship is locked on every day except Tuesday, Friday, and Sunday, so a closed gate simply means you are visiting on an off day. Switching to one of the three open days, or using a Crystallize/conversion route through crafting, resolves it.
Because the Dross is the base of the line, stocking extra copies is useful even when you only need higher tiers. Three Dross and 125 Mora produce one Sublimation through the alchemy table, so a surplus from a single farming day translates directly into the upgraded materials your Fontaine weapons need.