nova-Institute presents: Hemp straw color scale for the destination of the degree of retting

Using the color scale, the degree of retting of hemp straw can be determined in the field. During the drying and retting process, the predominant color of the straw is compared to the color scale. The hemp straw is pressed, when the color or degree of retting required by the customer prevails and the straw is sufficiently dry (< 18% moisture).

The color scale was developed by the LAP Forchheim, Rheinstetten, with support by the FIBRE Institute, Bremen, and realised in the context of the EU-project “Market Innovation Hemp”.

We appreciate comments regarding the practicability of the hemp straw color scale and any suggestions for its further optimisation. Thank you in advance for your efforts.

color scale


  • 1 piece: 15 DM/piece plus postage & package
  • > 5 pieces: 12 DM/piece plus postage & package
Contact: nova-Institut, Goldenbergstr. 2, 50354 Hürth,
Fax: 02233 – 94 36 83, e-mail:

Please deliver
piece/pieces of the hemp straw color scale.
Firma – Company:
Name, Vorname – Last & First Name:
Straße – Street:
PLZ, Ort –
Area Code, Town:
Land – Country:
Ihre E-Mail Adresse – Your e-mail:
EU-Länder bitte UID-Nr.
angeben /
EU countries, please give your VAT-No.:
Datum, Unterschrift – Date, Signature:
(Nur bei Fax- oder Briefbestellung –

Only if you order by fax or letter)


Terms of delivery

All orders from abroad plus postage & package not under 10,00 DM. Non-European: Please give whether you would like the delivery cheap or fast.

Delivery only after payment in advance

  • We send an invoice after you have ordered. The merchandise will be sent after payment.
  • If you send a cheque, the merchandise will be sent directly. Please note that other than ec-cheques require an additional charge of 10 DM, to be added to the sum of our invoice.