râche
- Domaine
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- industrie du sucrecontrôle de la qualité des produits d'érable
- Dernière mise à jour
Définition :
[Amérique du Nord] Sels minéraux, particulièrement le malate de calcium insolubilisé et le bimalate de calcium, qui précipitent pendant la cuisson du sirop et qui sont éliminés lors de la filtration après la sortie du sirop de l'évaporateur.
Termes privilégiés :
- râche n. f.
- sable de sucre n. m.
- nitre n. m.
Traductions
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anglais
Auteur : Office québécois de la langue française,Notes :
Sirup as it is drawn from the evaporator contains suspended solids, commonly known as sugar sand. They are primarily the calcium and magnesium salts of malic acid.
Sugar sand occurs in various forms, ranging from an amorphous black, oily substance to a fine, white, crystalline material.
This comes about by a concentration of the mineral salts to a point when they will no longer remain in solution. By the time the syrup has reached a consistency to be drawn off, much of this mineral product has become a sediment and can be taken out by straining the hot syrup through a strainer of felt or several thicknesses of flannel.Termes :
- sugar sand
- silica
- malate of lime
- nitre
- niter États-Unis