The mixture was aged for 30 days before the addition of French wine vinegar. He used cast-off cologne bottles as containers. His initial shipment of 350 bottles produced a flood of orders, and the rest, they say, is history. The modern production method is very similar. The pepper mash comes from plants grown on farms in Central and South America from seeds obtained from the original Avery Island stock.
Fine vinegar is added and the mash is stirred at intervals over a month.
The pulp is strained off and the resulting liquid is bottled. The strained-off mash is not wasted. It is marketed to companies making muscle rubs and peppermint products. It is hoped that the engineered tobacco will provide an affordable source of the medicine. This article notes that this field test is probaly the first one of any plant genetically engineered to contain a human gene.