Light Stable Kettle Extract

Reddish to yellow-green, semi-fluid syrup or paste.


Light Stable Ketle Extract (LSKE) is produced from CO2 extract and can be used as a complete replacement for regular kettle extract in the brewing process.

LSKE contains reduced (rho) isomerized alpha acids (in their potassium salt form), beta acids and hop essential oils.

LSKE provides substatial protection against lightstruck flavour when used as the sole source of bitterness. 

LSKE  is the only light stable hop product which can be added during wort boiling, contributing to broth, bitterness and hop aroma.


Unlike other rho iso-products added post-fermentation, the flavour characteristics of LSKE are similar to those of regular COextract. The additional presence of both beta acids and hop oils in this extract imparts a more rounded and fuller flavor to beer. Compared to regular iso-alpha acid products, reduced iso-alpha acids (rho) lend a smoother, non-lingering bitterness to beer.

Quick Specs

Rho Iso-alpha acids
35 – 45%
Iso-alpha acids
below detection limit
Alpha acids
below detection limit
Beta acids
5 – 30%
Hop Oil
3.0 – 10%
7.5 – 8.0 (in water)
200 – 600 mPas at 50 °C (122 °F)
1.05 – 1.10 g/ml at 20 °C (68 °F)
Reddish to yellow-green, semi-fluid syrup or paste.

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03 9872 6811


08 9395 7399