Product knowledge
Why Are Pistachios Green?
Pistachio kernels are green because they hold onto chlorophyll — the same pigment that colours leaves — even after the nut has fully ripened, dried and, often, been roasted. Most other tree nuts lose their green colouring well before harvest; pistachios are unusual in keeping a visible amount of it right through to the finished, edible kernel.
That's more than a curiosity for buyers: colour intensity is used informally in the trade as a rough quality and freshness signal, and it's a genuine part of why pistachio shows up so visibly in green-flecked Levantine sweets rather than being hidden inside a filling.
The chlorophyll behind the colour
Chlorophyll is present in the developing pistachio kernel the way it's present in any green plant tissue, but where almonds, walnuts and most other tree nuts break the pigment down as the nut matures, pistachios retain a meaningful amount of it. That's why the colour survives not just ripening but also drying and roasting — heat degrades chlorophyll somewhat, but doesn't erase it, which is why roasted pistachio kernels still read as distinctly green rather than tan like most other roasted nuts.
Why greener kernels are prized in sweets
In the pistachio trade, kernels are informally colour-graded from a deep, dark green down through lighter, more yellow-green shades, with a darker green generally read as a sign of higher chlorophyll content and, by extension, a fresher or better-handled nut. In Levantine confectionery that visual cue matters as much as flavour: a vivid green fleck through halva or a scatter of chopped kernels across barazek or ma'amoul is a quality signal shoppers read at a glance, which is part of why producers select for colour as well as taste.
Does a duller green mean lower quality or age?
Colour is one signal among several, not a stand-alone test. Ripeness at harvest matters, but so does handling speed afterward — nuts dried gently at lower temperatures and processed promptly hold their green better, while slow handling or higher drying heat dulls the colour toward yellow-brown even in a perfectly good nut. A slightly duller kernel isn't automatically spoiled; it's worth judging alongside aroma and texture rather than colour alone.
Where pistachio shows up in our catalogue
Our Srour Halawa with Pistachio folds chopped kernels through the tahini base for exactly that green-flecked look, and Barazek Sweets — the Damascene sesame cookie — presses pistachio into the surface where the colour is fully on display rather than mixed in. Our pistachio in Levantine sweets guide goes deeper on where the nut turns up across the range.
Related questions
Are all pistachios equally green?
No — variety, growing region, exact ripeness at harvest, and how quickly the nuts are dried and processed after picking all affect how much of the green colour is retained.
Does peeling change how green a pistachio looks?
Yes, visually — the thin skin around a raw kernel has a purplish-brown tint that mutes the green underneath, so a peeled or blanched kernel typically looks brighter and more uniformly green than an unpeeled one, even from the same batch.
Is a bright green colour ever artificial?
In some markets, yes — certain processed pistachio products (notably some pistachio pastes and confections) have historically used added colour to boost a naturally duller batch. Our whole pistachio in halva and barazek is not dyed; the green comes from the nut itself.