Solve the following sql problem:
Which distinct state makes beer that has the least amount of bitterness?

Schema:
SCHEMA:
- Table: breweries
  - Column: id
    - Samples: [0, 1, 2, 3, 4]
  - Column: name
    - Samples: [NorthGate Brewing , Against the Grain Brewery, Jack's Abby Craft Lagers, Mike Hess Brewing Company, Fort Point Beer Company]
  - Column: city
    - Samples: [Minneapolis, Louisville, Framingham, San Diego, San Francisco]
  - Column: state
    - Samples: [MN, KY, MA, CA, CA]
- Table: beers
  - Column: id
    - Samples: [1, 4, 5, 6, 7]
  - Column: brewery_id
    - Samples: [166, 166, 166, 166, 166]
  - Column: abv
    - Samples: [0.065, 0.087, 0.08, 0.099, 0.053]
  - Column: ibu
    - Samples: [65.0, 85.0, 35.0, 100.0, 35.0]
  - Column: name
    - Samples: [Dale's Pale Ale, Gordon Ale (2009), Old Chub, GUBNA Imperial IPA, Mama's Little Yella Pils]
  - Column: style
    - Samples: [American Pale Ale (APA), American Double / Imperial IPA, Scottish Ale, American Double / Imperial IPA, Czech Pilsener]
  - Column: ounces
    - Samples: [12.0, 12.0, 12.0, 12.0, 12.0]

SELECT DISTINCT T2.state, T1.ibu FROM beers AS T1 INNER JOIN breweries AS T2 ON T1.brewery_id = T2.id WHERE T1.ibu IS NOT NULL AND T1.ibu = ( SELECT MIN(ibu) FROM beers )