Mexican Tequesquite, aka Slack Lime

Last week, I took a trip to Roosevelt Ave. on the eastern frontier of Jackson Heights, Queens, New York City.  The mission expressly revolved around eating food from Mexico.  Continue walking east on Roosevelt Ave. towards Corona, and finding a taco will be as easy as finding a plastic surgeon in Seoul.

I walked into a Mexican supermarket called Bravo and strolled right up to the wall of spices, herbs and who-knows-what.  Sometimes, I-know-what, with a fair amount of culinary travel experience in Mexico under my belt; but even if I didn’t know Spanish, some foodstuffs like albahaca (basil), perejil seco (dried parsley) and tomillo (thyme) might still be familiar.

But then we have this one …

tequesquite slack lime mexican product
Los Compadres-brand Tequesquite (or Slack Lime) Mexican Cooking Product

Known as such.  What am I supposed to make of that? Did someone royally screw up spelling mesquite?  At first glance, it looks like clay, or stale psyllium husks.

Tequesquite, what are you? Similar to salt but composed of various minerals, it originates from the depths of various lakes in what is now Distrito Federal (Mexico City) and the state of MichoacánTrivia time: Name two more Mexican states (if you say Texas, I’d like to see your globe).  The word stems from the Náhuatl language, whereas tetl means rock and quixquitl signifies gushing or sprouting.  During the dry seasons, the beds of salt lakes such as Texcoco would be exposed, thus giving rise to the practical uses of tequesquite.

Aztecs and their descendants predominantly used tequesquite to leaven corn dough, but it was also used to soften corn kernels, as well as preserve the green color of nopales, or cacti.  On your next trip to Mexico, when you order a tamale or a corunda, its triangular cousin from the state of Michoacán, you might have tequesquite to thank.

From the Wayback Machine re: mexconnect.com

Oh, and as for assigning it an English name, there’s a possibility that builder’s or slack lime are contenders.  Slightly off-putting for use on supermarket shelves, but I can hear an avant-garde Home Depot calling its name.


Have you ever made tamales or corundas?  Are you able to find tequesquite?

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