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Did Black Thunder mini bar bag (South Korea) shrink?

Size FactsDid it shrink? Yes
Before158 g
After146 g
−7.6%smaller
Price per 100 g · if the price stayed the same+8.2%Hypothetical: the size cut alone. The source recorded no shelf prices.

How big a cut? The joint 167th-largest of 189 documented chocolate & candy cuts (tied with 1 other); a bigger cut than 18% of all 1,366 cases in the library. See the biggest cuts →

When
2024 · reported 31 Mar 2025
Country
South Korea
Brand
Black Thunder
Category
Chocolate & Candy
Source
biz.sbs.co.kr

Source and evidence

SBS Biz — KCA finds 9 shrunken products incl. Jeju tangerine chocolate (31 Mar 2025; KCA Q4 2024 survey) biz.sbs.co.kr

Source fetched 2026-10-31.

Imported Japanese chocolate bar bag cut from 158 g to 146 g in September 2024; the almond & hazelnut (130 to 118 g) and strawberry (128 to 116 g) mini bars were cut at the same time (KCA Q4 2024 survey).

Evidence
Typegovernment consumer agency survey (Korea Consumer Agency) reported by press
Confidencehigh

Check the math in the calculator.

What the source says

“용량이 224ｇ에서 192ｇ으로 각각 14.3% 줄었고 쫄깃쫄깃 뉴 호박엿은 같은 해 10월 300ｇ에서 280ｇ으로 6.7% 준 것으로 조사됐습니다. 또 착한습관 유기농 아로니아 동결건조 분말은 지난해 11월 200ｇ에서 150ｇ으로 25%나 내용물을 축소했습니다. 수입 상품에서는 블랙썬더 미니바(158→146ｇ), 아몬드&헤이즐넛(130→118ｇ), 미니바 딸기(128→116ｇ) 등 3개 제품이 지난해 9월 일제히 7.6∼9.4%씩 용량을 줄인 것으로 나타났습니다.”

More from South Korea: the South Korea shrinkflation list has all 35 documented cases, sortable and filterable.

Topic guide: chocolate shrinkflation, every documented case in one place, brand by brand.

More from Black Thunder

All 3 Black Thunder cases →

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All 9 in the case library →

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Chocolate shrinkflation →

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Cite this case

ShrinkRadar, “Did Black Thunder mini bar bag (South Korea) shrink? 158 g → 146 g”, https://shrinkradar.com/cases/black-thunder-mini-bar-bag-south-korea-2024.html, accessed 2026-11-05. Original source: SBS Biz — KCA finds 9 shrunken products incl. Jeju tangerine chocolate (31 Mar 2025; KCA Q4 2024 survey) (https://biz.sbs.co.kr/amp/article/20000225707).

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