As in every field, out of low quality raw material one cannot produce a high quality product. Therefore the selection of the raw material is of main importance in the production of extracts. Not only the identity must be properly determinated also the presence of the active substances must be checked.

By testing systematically all our extracts, individually, batch after batch, in a recognized independent German Lab on:
- identity and active substances
- traces of heavy metals
- aflatoxines G1, G2, B1, B2 and total aflatoxines
- organophosphorous and organochlorine pesticides, on piperonylbutoxid and pyrethroids
- microbacterial purity

we are forcing our supplier to do these tests already on their raw material. Final products that don’t meet the standards are refused.

The dried herbs are cleaned and sliced as traditionally prescribed, some herbs in smaller parts, others in larger slices.

Some herbs need a pretreatment, some to relieve their toxicity, others to enhance or reduce certain specific properties.
Cooking in water, baking or frying in vinegar, wine, ginger, honey are commonly used practices.

To produce a final product containing the necessary substances in the right quantities, this step in production is, without any doubt, the most important and also the most critical.

Essential substances may not be destroyed, therefore modern extractions are done at the lowest temperature possible. Volatile substances are kept and reintroduced in a later step of the production process.

Based on a 70 years experience, cooking time, temperature and other qualifying parameters are checked and if necessary corrected by computers

The raw material is separated and the remaining liquid is filtered.
Sometimes the raw material is dried and grinded fine and used as starch in the production of powders.

At low temperature and in a closed circuit the filtered liquid is concentrated by evaporation.
The original volume of liquid is brought back to about 1/5 of his volume. Here we speak of a concentration of 5/1, which is 5 times stronger than the original decoction of 1/1.

The concentration varies from herb to herb, depending the viscosity of the decoction.
Some decoctions are very watery, others more syrupy. After all the remaining concentrated liquid must be fluent enough for the next step in the production.

This technique, called spray drying, consist of spraying the concentrated liquid on small particles of starch, dries and becomes a powder. A next step can be the formation of granulates. As starch, mostly corn is used, but sometimes the dried and fine grinded raw material is reintroduced as starch.

Packing and labeling are fully automated. The powder or the granulates are pumped through tubes right into the packing and labeling machine. The bottles are filled and hermetically sealed, ready for the last quality control.

The final product is controlled again, not only on impurities and microbiological cleaness, also specific markers are checked. HPLC and TLC are common used techniques.

Randomized samples of each batch are send to the Lab in Germany. If the tests results confirm the supplier's tests, the goods are shipped. Upon arrival in our warehouse, again randomized samples are taken and send to the German Lab.
Only if these results confirm the two previous ones, the goods are stored and send out to our customers. Goods that don't answer the standards are destroyed at the supplier's expenses.
Certificates of analyses and tests results are available on demand. Beside to Europe, Min Tong is actually exporting to Japan, Australia, the USA, South East Asia including China, and providing of course an important local market.

To add up to 4 single herbs to an existing formula there is no extra charge.
Adding 5 single herbs or more, or to prepare a prescription exis-ting of single herbs only, a fixed amount of € 4,09 will be charged.

All our single herbs, all our formulas, formulas completed with single herbs, and even a personal prescriptions existing of single herbs can be pressed into handy tablets of 300 mg at an extra charge of ¤ 4,09 per 100 g.
The minimum we can tablet is 100 g.

All prices in this catalogue are per 100 g V.A.T.(6%) excluded.

Our products are in average 5/1 concentrated granulates.

The average dosage for an adult of 75 Kg is 3 x 2 g a day. Obviously it is up to the therapist to adapt the dosage to each of his patients. Extracts are best taken solved in or with lukewarm water.

Unless otherwise agreed, freight is at charge of the customer. Goods travel at risk of the customer.

Standard formulas can be returned, individual prescriptions cannot.

Formulas have to be ordered by a minimum of 100 g or a multiple, single herbs can be ordered in any quantity.

Herbs are best taken up to ½ hour before meals, or 1,5 hour after meals.

Unless otherwise agreed, payments have to be done within 8 days after reception of the goods.