A liquid foodstuff comprising a. A spirulina-extract comprising phycocyanin, b. At least one multi-sulphated carrageenan and/or pectin c. A chelating agent d. A solvent, wherein the amount of multi-sulphated carrageenan and/or pectin is between 0.003 and0.6wt%, wherein the weight ratio between multi-sulphated carrageenan and/or pectin and phycocyanin ranges between 1:1 and 100:1, wherein the chelating agent is present between 1-2000 ppm, wherein the solvent consists of water and optionally ethanol, wherein the amount of solvent ranges between 60-99 wt%, wherein the wt% are relative to the total weight of the liquid foodstuff.

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