A 1931 German patent expressed theories of the healing properties of "KOMBUCHAL" and sought a method to deliver that benefit in a consistent healthy way. The Original KOMBUCHAL patent may be viewed online http://happyherbalist.com/german_kombucha_patent.htm

They discovered that the wonderful healing properties of kombucha tea could be enhanced by simple vacuum distillation. A dehydration of the kombucha tea.

We create today, in our own lab, our own version of Kombuchal. Our Kombucha Tea CONCENTRATE is a  dehydration of the kombucha tea. This is not a gross boiling of the kombucha tea to reduce it to a jelly-like mass. Rather we carefully ferment and age our organic kombucha tea to certain acidity and then engender a slow evaporation under low heat and low pressure protecting all the nutrients of the kombucha tea. Through temperature controlled vacuum distillation. Without additives or chemical stabilizers. Our last lab analysis (May 2007 by San Rafael Chemical Services, Inc) showed a superior concentration of 35.4 g/L acetic acid, 53.0 g/L gluconic acid, and 2.97 g/L 2-keto-Gluconic acid. Note: 2-keto-Gluconic acid has often been (mis) identified as Glucuronic Acid by others. The typical Kombucha tea in the Cornell Study had a tendency to produce 3.3% total acid, 0.7% acetic acid, 4.8% glucose, and 0.6% ethanol after a nine-day fermentation. (no lactic acid, gluconic acid about 1.4  g/L). The average pH was 2.5. This would indicate that our Kombucha Tea CONCENTRATE is about 35 Times more concentrated than the typical home kombucha fermented tea.

The original version of the patent recommended calcium to be added during the process. The intended purpose was not implicit for health, as Dr. Barefoot and others have recommended, but was an attempt to improve the taste by neutralizing the acids. For two main reasons we choose not to add calcium. 1. Amounts of simple calcium, without complete minerals, may lead, in many people to calcium poisoning (like gout) and 2. The acids not only are beneficial health wise they provided a preservative action and we found the semi-sweet taste quite acceptable

Calcium may be added when taking. We recommend a high grade of marine Coral Calcium, which may be taken in extreme high doses without side affects We do recommend TRC Coral Calcium or TRC Liquid Calcium.

According to Traditional Chinese Medicine this version of kombucha is very tontifying and is suited for those that are active. Spleen Qi Deficient types (pale tongue especially with teeth marks along the sides, loose stools or diarrhea, tendency to feel cold and chills may be suited when taken with a physical exercise program. It is also indicated for post-partum and recovery periods.