| I've got friends in the music business | Brouwerij Frontaal | | 13.0% |
| I've Got Friends in the Music Business B.A. 2024 | Brouwerij Frontaal | Russian Imperial Stout | 10.5% |
| I've Got Friends In the Music Business B.A. Blend Batch #3 | Brouwerij Frontaal | Russian Imperial Stout | 14.0% |
| I've Got Friends In the Music Business B.A. Blend Batch #4 | Brouwerij Frontaal | Russian Imperial Stout | 14.0% |
| I've Got Friends in the Music Business B.A. Christmas Special | Brouwerij Frontaal | Russian Imperial Stout | 14.0% |
| I've Had It With These Motherf*****g IPAs At This Motherf*****g Brewery | Listermann Brewing Company | New England IPA | 5.5% |
| I've seen bigger than yours | To Øl | English Barleywine | 14.0% |
| I-10 IPA | Intuition Ale Works | American IPA | 7.3% |
| I-Lucky | Bissell Brothers | American IPA | 7.0% |
| I-P-Alien | Odd13 Brewing | American IPA | 7.5% |
| I-P-Aliens | Odd13 Brewing | American IPA | 8.0% |
| I. R. S. T. 1848 (Barrel-Aged) Vintage 2016 | Brasserie Artisanale Albion | Russian Imperial Stout | 11.0% |
| I.H.O.P. - In Honor of Pancakes Double Vanilla | Honey Pot Meadery | | 12.5% |
| I.M. Pale | McMenamins Mill Creek | American Pale Ale | |
| I.P.A. | Lowlander | American IPA | 6.0% |