---
title: "BI-1 Break The Ice Drop Rates (JP server)"
description: "BI-1 Break The Ice drop rates on the JP server: Ester 100.00%, Diketon 50.00%; 2 samples (2022-06-30 to 2022-07-14). Sanity cost 9. Updated 2026-10-23. Crowdsourced Arknights drop data by Penguin Statistics."
lang: en
server: JP
zone_id: "act14side_zone1"
stage_id: "act14side_01"
as_of: 2026-10-23T14:49:35Z
time_zone: UTC+9
rows: 2
rows_total: 2
canonical: "https://penguin-stats.io/en/result/jp/stage/act14side_zone1/act14side_01"
api: "https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=JP&stageFilter=act14side_01&show_closed_zones=true"
license: CC BY-NC 4.0
license_url: https://creativecommons.org/licenses/by-nc/4.0/
attribution: "Data: Penguin Statistics (penguin-stats.io), CC BY-NC 4.0"
---

# BI-1 Break The Ice Drop Rates (JP server)

Server: [CN server](https://penguin-stats.io/en/result/cn/stage/act14side_zone1/act14side_01.md) · [US server](https://penguin-stats.io/en/result/us/stage/act14side_zone1/act14side_01.md) · **JP server** · [KR server](https://penguin-stats.io/en/result/kr/stage/act14side_zone1/act14side_01.md)

Sanity: 9

Item drops of BI-1 Break The Ice on the JP server, by percentage, highest first

| Item | ID | Loots | Samples | Percentage | Sanity Required Per Item | Time Range |
| --- | --- | ---: | ---: | ---: | ---: | --- |
| [Ester](https://penguin-stats.io/en/result/jp/item/30031.md) | `30031` | 2 | 2 | 100.00% | 9.00 | 2022-06-30 to 2022-07-14 |
| [Diketon](https://penguin-stats.io/en/result/jp/item/30051.md) | `30051` | 1 | 2 | 50.00% | 18.00 | 2022-06-30 to 2022-07-14 |

Samples: runs of the stage reported in the time range. Loots: total number of the item dropped in those runs. Percentage = Loots ÷ Samples, the expected number dropped per run, which can exceed 100%. Sanity Required Per Item = Sanity ÷ Percentage. Time Range: since the drop table of the stage last changed.

Updated 2026-10-23 23:49 (UTC+9). [Full data (JSON)](https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=JP&stageFilter=act14side_01&show_closed_zones=true). License: [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/)