- Who
- Heidi Deml
- What
- 10 total number
- Where
- Germany (Attenkirchen)
- When
The most knots undone by a dog in one minute is 10 and was achieved by Gustl, a Terrier Mix owned by Heidi Deml (Germany), on the set of Officially Amazing (Lion TV), in Attenkirchen, Germany, on 19 December 2012.