- Elmfield Rudolf Steiner School
- 8.62 metre(s)
- United Kingdom (Stourbridge)
The largest baking soda and vinegar volcano is 8.62 m (28 ft 3.3 in) tall, achieved by pupils, parents and staff of Elmfield Steiner School (UK), when measured and demonstrated at their premises in Stourbridge, UK, on 9 May 2015.
The eruption rose 1.32 metres above the peak of the volcano, which consisted of 100 litres of vinegar and 100 litres of a baking soda and water solution combining together.