Lees are perfectly safe to consume and  are especially beneficial in white and sparkling wines, as they soften the tannins and enrich the flavors of the wine.

White and sparkling wines aged on lees are often described as creamier, richer, fuller-bodied, or with greater depth and complexity of flavor.

Red wines aged on lees are often described as rich, oaky with pronounced dark fruit and even spice flavors.

Oak aging and Chardonnay go hand in hand, as lees aging in oak barrels will diffuse additional aroma compounds from the wood, including sweet, caramel-like notes, smoke-like flavors, clove flavors, and vanilla.

Due to chardonnay's neutrality and hardiness, it makes for a perfect canvas to impart the flavors and textures that lees creates in a wine.

The 2018 Dirty is unique when it comes to lees particles, as this wine is not fully filtered. Instead of filtering out the yeast immediately, the wine simply rests for a longer time (no shaking or moving the tanks!). This naturally settles yeast particles through gravity. After this point, the wine gets racked from the lees. 

Because of its less filtered quality, the body of the wine improves, and the small presence of lees particles only make it that much better.