Tartaros Gonzalo Castello

More than 100 years of existence, stand behind the activity of this company, which was established in 1907. Throughout its history, the steady growth and strong international expansion of Tartaros Gonzalo Castello S.L have made the company an international leader and standart-setter in the manufacturing and sale of natural tartaric salts and esters.

Innovation is a key element in our strategy. Our R&D department devotes the effort that is necessary  in order to diversify the scope of our activity ensure constant improvement of our products.

In addition to tartaric acid products, we manufacture BONSALT, a 0% salt and low-sodium salts, as well various formulations and grades of sweeteners.

Our Stevia is a product without calories, it tastes is very similar to sugar without aftertaste.It is a made from Erythritol, a sugar alcohol found naturally in various fruits  and Steviol Glycosides.Our Stevia are fused into one crystal, bringing to the product a 100% natural and homogeneous flavour.

we manufacture also others sweeteners , our granulated have revolutionized the single -portion packaging system, providing a series of major advantages over the traditional powder formulation.